Uzivatelsky Manual Eng LATS MULTI V

1© 2007 Air-conditioning Academy All rights reserved

LATS – Multi V

LG AirLG Air--conditioning Academyconditioning Academy


Contents

1. Multi-V Plus model selection by product data book method (Manual Calculation)

1) Model Selection Process

2) Indoor Units Selection

3) Outdoor Units Selection

4) Calculate Performance Data

5) System Check

2. Multi V Plus model selection by LATS Multi V software (Without CAD)

1) Program Installation guide

2) User guide

3. Multi V Plus model selection by LATS Multi V software (With CAD)

1) User guide


Basic raw data for

model selection•Total Load

(sensible & latent load)

•Air volume (CFM)

System selection •Indoor units

•Outdoor units

•Capacity coefficient factor

Branch selection •Y-branch

•Header branch

Control wiring

selection •Method

•Devices

Electrical wiring •Field wiring

•characteristics

Model selection process


Load conditions

Outdoor 7℃DB/6℃WBOutdoor 35℃/24℃WB

Indoor 20℃ DB /15 ℃WBIndoor 26℃DB/18℃WB

HeatingCooling

Design

Conditions

Load calculation data (cooling and heating)

•Refrigerant piping

•Outdoor unit is above indoor

Load (kW)Room No.

1.9Room 7

7.5Room 6

6.2Room 5

2.4Room 4

1.9Room 3

3.6Room 2

4.9Room 1

Value assumed for

showing mathematical

calculation involved in

manual method

Calculate room load

with the help of LATS

load calculation

software or manually


Proposed system diagram (assumed data)

40m

10m 10m 7m

7m7m

5m

7m

10m

10m

18m

7m

7m

Room 1Room 2

Room 3

Room 4

Room 5

Room 6

Room 7

Maximum elevation between

O/D and I/D 1, 2 and 3 = 20m

O/D and I/D 4, 5, 6 and 7 = 30m

Total piping length = 145m

Farthest piping length = 70m


Indoor unit selection

Outdoor unit selection

Actual capacity of O/D

at combination ratio

Corrected capacities

calculations (O/D & I/D)

Matching of Capacities

(indoor/outdoor)

•Design parameters values

•Total and sensible capacities

•Indoor capacity index

• Indoor unit type


•Total capacity value

•Outdoor capacity index

Combination ratio

Defrosting factor

For heating mode

Heating calculations

•Total indoor capacities index

•Standard outdoor capacity index (at 100%)

•Calculation at 100%

•Outdoor performance data

•Interpolation & calculation

•Correction factor charts

•Total piping length & elevation

•Individual piping length & elevation

NO Yes

•Refer Product Data

book defrost charts

Elevation & total piping

length correction factor



�Consider indoor unit having higher rated capacity

(at specified condition) than cooling/heating

capacity required for the corresponding room

• Refer product data book indoor unit specifications

(as shown on the next page).

• Design condition : Indoor 26℃DB/18℃WB & Outdoor 35℃DB/27℃WB

Total (kW) Sensible (kW) Total(kW) Sensible (kW)

Room 1 4.9 2.94 5 3.8 76.00% 18

Room 2 3.6 2.16 5 3.8 76.00% 18

Room 3 1.9 1.14 2 1.5 75.00% 7

Room 4 2.4 1.44 2.4 1.8 75.00% 9

Room 5 6.2 3.72 6.6 5 75.76% 24

Room 6 7.5 4.5 7.7 6 77.92% 28

Room 7 1.9 1.14 2 1.5 75.00% 7

Total 28.4 17.04 30.7 23.4 111

Capacity index

(Qidu_index)Location

Cooling Load Unit CoolingSH Factor

Cooling load requirement from manual

calculation or LATS-load software

•Refer to the same capacity

table for checking the capacity

index at that conditions.

Total capacity

index = 111

(∑Qidu_index)



TC=5.0

SHC=3.8

TC=3.3

SHC=2.5

Capacity index

Qidu_index = 12

Capacity index

Qidu_index = 18

• At Indoor 26℃DB/18℃WB &Outdoor 35℃• Product data book page no. 270 (R-22)

Capacity index, total cooling (TC) &

Sensible heat cooling (SHC) can be

checked for each model from PD book

like mentioned










(indoor/outdoor)








Combination ratio

Defrosting factor

For heating mode










NO Yes


book defrost charts





We have already checked that the sum of total I/D unit capacity index is (∑Qidu_index) =111. So the selected outdoor unit should be such that ∑Qidu_index lie in between it 100% to 130% capacity index. Start matching capacity index with lower capacity O/D unit first. The values in the table are {Qodu_index}.

If this outdoor unit capacity does not satisfy the final total corrected capacities

of indoor unit then we can choose the next higher capacity outdoor unit.

111 lies between 110% and

120% combination capacity of

10 hp outdoor unit.


We have already checked that the sum of total I/D unit capacity index is

(∑Qidu_index) =111. So the selected outdoor unit should be such that

∑Qidu_index lie in between it 100% to 130% capacity index. Start matching

capacity index with lower capacity O/D unit first. The values in the table are

{Qodu_index}.

If this outdoor unit capacity does not satisfy the final total corrected capacities of

indoor unit then we can choose the next higher capacity outdoor unit.







calculations (O/D & I/D


(indoor/outdoor)








Combination ratio

Defrosting factor

For heating mode










NO Yes


book defrost charts



Combination ratio


12596481610hp

Maximum index (at

130% connected

capacity)

Index at standard rating

(at 100% connected

capacity)

Minimum index (at

50% connected

capacity)

Capacity index range (Qodu_index)Maximum No.

of

connectable

indoor units

Model

s

• Actual number of connected indoor units are 7 (less than maximum number 16).

• The values in the above table at 100% capacity will be used to calculate

combination ratio.

• Rcombi = ∑Qidu_index / Qodu_index {Calculated at 100% outdoor unit capacity index}

Total indoor units

capacity index

∑Qidu_index

Models

111/96 = 115.625%9611110hp

Combination ratio

Rcombi = ∑Qidu_index / Qodu_index

Index at standard

rating (100%)

(Qodu_index)

Combination ratio helps in calculating actual capacities of outdoor/indoor units.

Combination ratio









(indoor/outdoor)








Combination ratio

Defrosting factor

For heating mode










NO Yes


book defrost charts



Actual capacity of O/D at combination ratio


TC=29.8

PI=9.54

Capacity index

Qodu_index = 106(at 110%)

Capacity index

Qodu_index = 115(at 120%)

TC=28.9

PI=9.30

The table below tell about the actual capacities and power

input by the outdoor unit at specific indoor unit

combination. (10hp)



• Now using interpolation method the actual capacity of outdoor unit at the

combination ratios can be calculated.

• Qodu(Ti,To, Rcombi) is a function of indoor, outdoor temperature and combination ratio.

Important note : (e) & (f) are calculated on interpolation method such as

For ex. � Index at combination ratio (10hp) = 106 + [(115.625-110)*(115-106)]/(120-110) = 111.06

� Actual capacity (10hp) = 28.9 + [(115.625-110)*(29.8-28.9)] / (120-110) = 29.4 (at 115.625%)

(f)(e)(d)(c)(b)(a)

Outdoor Index

at combination

ratio

Combination

ratio

Rcombi =

∑Qidu_index / Qodu_index

111.06

Qodu_index

28.9110106

29.8115

Indoor

Combinatio

n (%)

115.625%

Total

coolingModel

29.4(115.625%)120

10hp

Actual capacity

Qodu(Ti,To,Rcombi) (kW)










(indoor/outdoor)








Combination ratio

Defrosting factor

For heating mode










NO Yes


book defrost charts



Corrected capacities calculations (O/D & I/D)


• Till here

• ∑Qidu_index = 111

•Qodu_index = 96 (100%)

• Rcombi = ∑Qidu_index / Qodu_index = 115.625

• Qodu(Ti,To,Rcombi) = 29.4kW

•Indoor unit Corrected capacity is calculated individually.

• Qidu_corrected = [Qidu_index / ∑Qidu_index]×Qodu(Ti,To,Rcombi)

Corrected outdoor unit capacity = 29.4kW I/D unit 1 actual = ( 18 / 111 ) × 29.4 =

4.77

Actual

capacity (kW)

Sensible

heat (kW)

5.00 3.80

5.00 3.80

2.00 9.00

2.40 1.80

6.60 5.00

7.70 6.00

2.00 1.50

30.70 30.90

Capacity

Index

Correted

capacity(kW)

18 4.77

18 4.77

7 1.85

9 2.38

24 6.36

28 7.42

7 1.85

111 29.40

Corrected

sensible heat (kW)

3.62

3.62

1.39

1.79

4.83

5.86

1.39

22.51

Room No.

Room 1

Room 2

Room 3

Room 4

Room 5

Room 6

Room 7

Corrected capacities calculations (I/D)









(indoor/outdoor)








Combination ratio

Defrosting factor

For heating mode










NO Yes


book defrost charts



Elevation & total piping length correction factor


For the indoor unit 1, 2 and 3

Level difference = 20m.

Equivalent lengths are 57m, 67m and

67m correspondingly

Outdoor unit is above indoor units

From the above chart the elevation & total piping length

correction factor {f(length, elevation)} for for indoor unit 1, 2 and 3 are

0.935, 0.922 and 0.922 correspondingly

2 and 31



For the indoor unit 4, 5, 6 and 7

Level difference = 30m.

Equivalent lengths are 62m, 62m, 70m

and 62m correspondingly

Outdoor unit is above indoor units

From the above chart the elevation & total piping length correction factor {f(length, elevation)}

for for indoor units 4, 5, 6 and 7 are 0.925, 0.925, 0.918 and 0.925 correspondingly

4, 5 and 7 6



•Final indoor unit capacity is calculated by the given formula.

• Qodu_final =Qidu_corrected×f(length, elevation)

Final capacities (indoor unit)

Correted

capacity(kW)

Corrected sensible heat

(kW)

4.77 3.62

4.77 3.62

1.85 1.39

2.38 1.79

6.36 4.83

7.42 5.78

1.85 1.39

29.40 22.43

Length and elevation

correction factor

0.935

0.922

0.922

0.925

0.925

0.918

0.925

Final indoor unit

capacity (kW)

4.46

4.40

1.71

2.21

5.88

6.81

1.72

27.17

Final sensible

heat (kW)

3.39

3.34

1.28

1.65

4.47

5.31

1.29

20.73









(indoor/outdoor)








Combination ratio

Defrosting factor

For heating mode










NO Yes


book defrost charts



Matching capacities (indoor & outdoor unit)


Room 1

Room 2

Room 3

Room 4

Room 5

Room 6

Room 7

Total

LocationTotal (kW) Sensible (kW)

4.90 2.94

3.60 2.16

1.90 1.14

2.40 1.44

6.20 3.72

7.50 4.50

1.90 1.14

28.40 17.04

Cooling load

18

18

7

9

24

28

7

111

Capacity indexTotal (kW) Sensible (kW)

4.46 3.39

4.40 3.34

1.71 1.28

2.21 1.65

5.88 4.47

6.81 5.31

1.72 1.29

27.17 20.73

Final cooling capacity

• Now each indoor unit capacity both actual and sensible is compared with the required parameters.

• Also total overall load requirements are compared with the requirement.

• If it is satisfactory then selection of units are ok but if any one indoor or outdoor unit fails in requirement we

have to go for higher capacity models.

Matching capacities (indoor & outdoor unit)

The values with arrow should be equal or more than the cooling load. but in this

case they are lower. So we will upgrade indoor units one by one and follow the

whole process again. Till we get optimal solution.


• So finally after iterations optimal solution is set as above

• Outdoor unit changed to 12 hp unit from 10hp unit.

Iteration Conclusion

Ok

Ok

Ok

Ok

Comments

O/D unit

Room 7

Room 6

Room 5

Location

12hp

9k

36K

28k

Indoor unit

Ok24KRoom 1

Ok

Ok

Ok

Comments

12KRoom 4

9KRoom 3

Indoor unitLocation

Room 2 18K

Room 1

Room 2

Room 3

Room 4

Room 5

Room 6

Room 7

Total

LocationTotal (kW) Sensible (kW)

4.90 2.94

3.60 2.16

1.90 1.14

2.40 1.44

6.20 3.72

7.50 4.50

1.90 1.14

28.40 17.04

Cooling load

24

18

9

12

28

36

9

136

Capacity

Index Total (kW) Sensible (kW)

5.85 4.39

4.33 3.25

2.16 1.60

2.95 2.19

6.89 5.18

8.78 6.59

2.21 1.64

33.17 24.84

Final cooling capacity


2. Multi V Plus model selection

by LATS Multi V software (Without CAD)


Program Installation guide

For downloading LATS model selection software

Log on to LG global website : www.lgeaircon.com

For access to website contact to sales manager of your area

Note: Access to this site is permitted to LG employees only



1. Click to Partner Support and new window will open

2. Click Technical Data

3. Then click Software and Software download window will open



Select latest version of LATS-Multi V: Multi V Model Selection



Then click to hyperlink “Download LATS-Multi V” and select folder for

downloading in your PC.


2. Click Next (No Special Option)

1. Click on install icon

3. Click Yes for accepting downloading agreement


1. For start setup LATS Multi V click install icon

2. Click next to continue process

3. Read agreement and click “Yes” (if you don’t accept it then you can’t install

LATS)


4. Input

User Name

Company Name.

Input Installation Password “latsmultiv”

5. Click Next Button .


6. Start copying files and Finish Installation.

4. Fill User Name and Company name. Input password “latsmultiv”

5. Click Next to continue install

6. Start copying files and Finish Installation


LATS-Multi V Initial Window.

After successful installation of software the given below window will open

User Guide


1. Project Information Menu

2. Click on Create Project 3. Create Project Window will open

4. Input Project Name

5. Select Unit system

6. Select Cooling or Heating Mode

7. Select ODU Type

8. Give any special comment (optional)

9. Click Next

Be sure to disable CAD option if you are not using CAD drawing for model selection

User Guide


2. Click on Create Project

3. Create Project Window will open




7. Select ODU Type


9. Click Next

Be sure to disable CAD option if you are not using CAD drawing for model

selection


10. Select Country and City

11. Input Design condition.

12. Click Next

Change design condition if

given values not satisfied

your requirement

If you change one of the

following air property

(DBT,WBT,RH),

psychometric process will

execute and find other

related value. So it’s easy to

define air property.

User Guide



12. Click Next

Change design condition if given values not satisfied your requirement

If you change one of the following air property (DBT,WBT,RH), psychometric

process will execute and find other related value. So it’s easy to define air

property.


16. If LATS LOAD values are

not available manual load

entry can also be done simply

by adding values in columns

13. This window will open.

14. When selecting Open Load, You can load the result calculated by LATS-LOAD

15. Add floor or Add space as required. For adding and

removing Floor or Space first click on the row and then

click Add or Remove

15. Click Next

User Guide


14. When selecting Open Load, You can load the result calculated by

LATS-LOAD

15. Add floor or Add space as required. For adding and removing Floor or

Space first click on the row and then click Add or Remove

16. If LATS LOAD values are not available manual load entry can also be

done simply by adding values in columns


17. Input Customer &

contractor Information it

will be printed out while

making report.

18. After filling all data click Finish

User Guide

17. Input Customer & contractor Information it will be printed out while

making report.



19. This window will appear

System Property Window

System Panel

Indoor Unit Toolbar

20. From here we will start selecting outdoor units, indoor

units, branch pipes and header pipes according to design

21. Double click on outdoor unit icon

for selecting outdoor unit

User Guide


20. From here we will start selecting outdoor units, indoor units, branch pipes and

header pipes according to design

21. Double click on outdoor unit icon for selecting outdoor unit


Toggle navigator

View control wire

Toggle description

View reports

Space load summary

Auto piping

Delete system

Copy system

New system

System setting

System check

Save project

System validation property

System pre-view (tree only)

System panel

View power line

View pipe line

distribution

User Guide – Main tool bar


Arrow

New Outdoor

New Indoor

New Room

New Pipe

New Equipment

New Climb

Delete Unit

Rotate Unit

Rotate Angle

Create Net

Undo

Redo

Zoom in

Zoom out

Zoom window

Fit window

Pan

Grid on/off

Ortho on/off

Import DWG file

Export DXF file

User Guide – Other tool bar



23. Select proper unit as per

load requirement

24. In heating case select

defrost factor

25. These specifications will

change according to the product

automatically

26. After selecting above value click OK

Or you can use Auto

Selection for seeing possible

connectable O/D unit

Other optional

accessory can also be

choose by clicking

this button

User Guide


23. Select proper unit as per load requirement

24. In heating case select defrost factor

25. These specifications will change according to the product automatically


Other optional accessory can also be choose by clicking this button

Or you can use Auto Selection for seeing possible connectable O/D unit


27. The new outdoor unit will appear.

No. of connected I/D units //

Maximum No. of connectable I/D

units

I/D unit capacity index // O/D unit

capacity index (combination ratio)

Total connected piping length //

Maximum total piping length

28. Double click on Stand by

User Guide

27. The new outdoor unit will appear.

28. Double click on Stand by

No. of connected I/D units // Maximum No. of connectable I/D units

I/D unit capacity index // O/D unit capacity index (combination ratio)

Total connected piping length // Maximum total piping length



30. Choose one of

them

Choose Y branch for connecting 2

indoor unit or more branching

Select Header branch for connecting

more than 2 indoor unit at one

branching point

Or you can select indoor unit

User Guide


30. Choose one of them

Choose Y branch for connecting 2 indoor unit or more branching

Select Header branch for connecting more than 2 indoor unit at one branching

point or you can select indoor unit


31. Choose indoor

unit (if required)32. This window will appear

33. Choose indoor unit type

34. Choose indoor unit model

35. Position of I/D w.r.t

outdoor unit

36. Select elevation from O/D

37. IDU capacities & design load will

appear automatically (Fixed)

41. Click OK

40. Select the type of accessory

38. Click Accessory (if any required)


42. Finally Click OK

User Guide - Selecting Indoor unit

31. Choose indoor unit (if required)




35. Position of indoor unit or outdoor unit

36. Select elevation from O/D

37. IDU capacities & design load will appear automatically (Fixed)



40. Select the type of accessory

41. Click OK



45. If at stand by box Y branch is

required select Y branch

47. If Y branch is selected then

stand-by box will change

into y branch with 2 more

connected stand-by boxes.

46. And if header branch is

required select header

43. Double click on Stand by icon


48. And If header branch is

selected then stand-by box

will change into multi branch.

User Guide - If selecting Y-branch or Header branch

43. Double click on Stand by icon


45. If at stand by box Y branch is required select Y branch

46. And if header branch is required select header

47. If Y branch is selected then stand-by box will change into y branch with 2

more connected stand-by boxes.

48. And If header branch is selected then stand-by box will change into multi

branch.


49. As per the design select different

Y-branches

(if needed header can also be used)

Multi V plus 10hp outdoor unit is selected

User Guide - After selecting Y-branch

Multi V plus 10hp outdoor unit is selected

49. As per the design select different Y-branches

(if needed header can also be used)


50.Double click on Stand by for

selecting indoor unit or you can

select indoor unit by dragging

requisite indoor icon from icon

plate



54.Select elevation from

outdoor unit

55. IDU capacities & design

load will appear

automatically (Fixed value

depend on I/D)

User Guide

50.Double click on Stand by for selecting indoor unit or you can select indoor unit

by dragging requisite indoor icon from icon plate



54.Select elevation from outdoor unit

55. IDU capacities & design load will appear automatically

(Fixed value depend on I/D)


55. Selected indoor unit

This space will show required load

User Guide

55. Selected indoor unit

This space will show required load


After selecting indoor units at stand-by locations

Room icons (space) will appear next to each indoor

unit. Here we can select loads which are feed

manually or software calculated load.

Selected indoor type and

capacities will be seen on tree

section like this

User Guide

After selecting indoor units at stand-by locations Room icons (space) will appear

next to each indoor unit. Here we can select loads which are feed manually or

software calculated load.

Selected indoor type and capacities will be seen on tree section like this


56. Double click on each space will

show this window

57. Select the load for each space one

by one. After double clicking on

space click value on pop-up

window which we have to assign at

that space and click OK

User Guide

56. Double click on each space will show this window

57. Select the load for each space one by one. After double clicking on space

click value on pop-up window which we have to assign at that space and click OK


Load will be shown for each case like this

User Guide

Load will be shown for each case like this


58. Reselect indoor unit according to the

required load (appearing under space).

Chosen indoor unit should be such that

their capacity is slightly higher than

required load

User Guide

58. Reselect indoor unit according to the required load

(appearing under space).

Chosen indoor unit should be such that their capacity is slightly higher than

required load


59. Double click on pipe lengths for

selecting various piping lengths

between outdoor unit, Y branch and

indoor units

60. At double clicking piping length this

window will appear. Filled required

length and then click OK

User Guide

59. Double click on pipe lengths for selecting various piping lengths between

outdoor unit, Y branch and indoor units

60. At double clicking piping length this window will appear. Filled required length

and then click OK


1

2

3

4

User Guide

Check :

1. Percentage of indoor unit capacity to required load should be more than 100%.

2. Number of connectable indoor unit should be less than maximum connected

unit

3. Combination ratio of Indoor to outdoor should be between 100% to 130%

4. Total piping length should be less than maximum allowed piping length


61. Click auto piping button

This pop up message will appear which mean

piping is done successfully

If not warning message will appear

You can choose Y-branch manually or they

will be automatically selected while

executing Auto Piping.For choosing Y-

branch double click on Y-branch icon

User Guide

61. Click auto piping button

You can choose Y-branch manually or they will be automatically selected while

executing Auto Piping.For choosing Y-branch double click on Y-branch icon

This pop up message will appear which mean piping is done successfully

If not warning message will appear


62. Click system check button for final system

balance check.

This pop-up message will appear that

system check was successfully

executed

If the system is not properly

balanced then a warning message

will pop-up

User Guide

62. Click system check button for final system balance check.

If the system is not properly balanced then a warning message will pop-up

This pop-up message will appear that system check was successfully executed


So indoor unit 1,3,6,7 are short in the cooling capacity (less than 100%) as

per required loads (as shown by circles).This require increasing of indoor

unit capacity

Outdoor unit is still within the

limits of 130% capacity

Ratio of indoor unit capacity to required

load should be more than 100%

User Guide

1

3

6

7

Ratio of indoor unit capacity to required load should be more than 100%

Outdoor unit is still within the limits of 130% capacity

So indoor unit 1,3,6,7 are short in the cooling capacity (less than 100%) as per

required loads (as shown by circles).

This require increasing of indoor unit capacity


Warning message “indoor unit capacity

exceeds the outdoor unit capacity connection

combination”

64. Click OK on the message and change the outdoor unit to higher capacity

63. After upgrading the unit by 1 or 2 steps towards

higher capacity and then repeat the following.

Click “auto piping” button and then “system check”

User Guide

63. After upgrading the unit by 1 or 2 steps towards higher capacity and then

repeat the following.

Click “auto piping” button and then “system check”

64. Click OK on the message and change the outdoor unit to higher capacity

Warning message “indoor unit capacity exceeds the outdoor unit capacity

connection combination”


65. After upgrading outdoor unit

Click “auto piping” button and

then “system check”

66. Check for the optimal solution by again setting of indoor units till reach close to the required load

(percentage ratio close to 100% but above 100%).

User Guide

65. After upgrading outdoor unit Click “auto piping” button and then “system

check”

66. Check for the optimal solution by again setting of indoor units till reach close

to the required load

(percentage ratio close to 100% but above 100%).


Final solution is successful.

Outdoor unit is within

limit of 130% capacity

ExampleUser Guide

Outdoor unit is within limit of 130% capacity

Final solution is successful.


67. Next click on Schematic diagram

icon for seeing schematic view of

this drawing

User Guide

67. Next click on Schematic diagram icon for seeing schematic view of this

drawing


clicking Schematic diagram

icon will give schematic line

view of

1. Control wire

2. Power line

3. Pipe line

Click either of these icon for seeing

control wire, power line and pipe

line 68. Next click on Generate Report for

making excel sheet of this

selection

User Guide

68. Next click on Generate Report for making excel sheet of this selection

clicking Schematic diagram icon will give schematic line view of

Control wire

Power line

Pipe line


69. This menu will popup.

Clicking each menu will

generate the report

corresponding to that issue.

70. Finally press ok for viewing the

above choose report on excel sheet

Note: You need MS Excel program

installed on your computer for

executing this command

User Guide

69. This menu will popup.

Clicking each menu will generate the report corresponding to that issue.

70. Finally press ok for viewing the above choose report on excel sheet

Note: You need MS Excel program installed on your computer for executing this

command


1. Proposal Sheet 2. Contact Detail Sheet 3. Table of Contents Sheet

User Guide – Final Report

1. Proposal Sheet

2. Contact Detail Sheet

3. Table of Contents Sheet


4. Building-Load Output Sheet 5. Model Selection Summary Sheet 6. Outdoor Model Selection Sheet

User Guide - Final Report

4. Building-Load Output Sheet

5. Model Selection Summary Sheet

6. Outdoor Model Selection Sheet


7. Indoor Model Selection Sheet 8. Model Selection Tree


7. Indoor Model Selection Sheet

8. Model Selection Tree


9. Model Selection Diagram 10. Model Selection Analysis Sheet


9. Model Selection Diagram

10. Model Selection Analysis Sheet


3. Multi V model selection

by LATS Multi V software (with CAD)



2. Click on Create Project 3. Create Project Window will open




7. Select ODU Type


10. Click Next

9. Be sure to active CADoption if you are using CAD

drawing for model selection

User Guide – Main contents


2. Click on Create Project

3. Create Project Window will open




7. Select ODU Type


9. Be sure to active CAD option if you are using CAD drawing for model selection

10. Click Next




14. Click Next

13. Change design condition if

given values not satisfied your

requirement

If you change one of the

following air property

(DBT,WBT,RH), psychometric

process will execute and find

other related value. So it’s easy

to define air property.

User Guide



13. Change design condition if given values not satisfied your requirement

If you change one of the following air property (DBT,WBT,RH), psychometric

process will execute and find other related value. So it’s easy to define air

property.

14. Click Next




entry can also be done

simply by adding values

in columns


17. Add floor or Add space as required. For

adding and removing Floor or Space first click

on the row and then click Add or Remove

19. Click Next

16. When selecting Open Load,

You can load the result

calculated by LATS-LOAD

User Guide


16. When selecting Open Load, You can load the result calculated by LATS-

LOAD

17. Add floor or Add space as required. For adding and removing Floor or Space

first click on the row and then click Add or Remove

18. If LATS LOAD values are not available manual load entry can also be done

simply by adding values in columns

19. Click Next


20. Input Customer &

contractor Information it

will be printed out while

making report.


User Guide

20. Input Customer & contractor Information it will be printed out while making

report.




23. Click this Icon for importing Auto CAD drawing

User Guide – Import Auto CAD drawing


23. Click this Icon for importing Auto CAD drawing


Save Project

System Setting

New System

Copy System

Delete System

Auto piping

System Check

System Validation property

Toggle description

System load summary

View reports

System preview (Tree only)

Toggle Navigator

System Panel

Control Line

Power Cable

Pipe Line

Arrow

New Outdoor

New Indoor

New Room

New Pipe

New Equipment

New Climb

Delete Unit

Rotate Unit

Rotate Angle

Create Net

Undo

Redo

Zoom in

Zoom out

Zoom window

Fit window

Pan

Grid on/off

Ortho on/off

Import DWG file

Export DXF file

User Guide


24. Select CAD drawing and then click Open icon

25. This will open CAD drawing with message

“CAD file is successfully open” . Click OK

on this pop-up window

User Guide

24. Select CAD drawing and then click Open icon

25. This will open CAD drawing with message “CAD file is successfully open” .

Click OK on this pop-up window


26. Choose proper scale for opening CAD

drawing and then click OK

User Guide

26. Choose proper scale for opening CAD drawing and then click OK


27. You can see imported CAD drawing like

this. If it is out of screen area click Fit

Window icon for resizing it

User Guide

27. You can see imported CAD drawing like this. If it is out of screen area click Fit

Window icon for resizing it


28. Click on the New Room icon for specifying

load to different location




entry can also be done

simply by adding values in

columns

30. When selecting Open Load, You can load the result calculated by LATS-LOAD

31. Add floor or Add space as required. For adding and

removing Floor or Space first click on the row and then

click Add or Remove

33. Click on any one row for

locating that row load in

drawing and then click OK

User Guide

28. Click on the New Room icon for specifying load to different location


30. When selecting Open Load, You can load the result calculated by LATS-

LOAD

31. Add floor or Add space as required. For adding and removing Floor or Space

first click on the row and then click Add or Remove

32. If LATS LOAD values are not available manual load entry can also be done

simply by adding values in columns

33. Click on any one row for locating that row load in drawing and then click OK


34. Click your cursor on

specific location (in CAD

drawing) where you want

to locate this load.

35. Similarly choose other

location by repeating steps

from 28 to 34

User Guide

34. Click your cursor on specific location (in CAD drawing) where you want to

locate this load.

35. Similarly choose other location by repeating steps from 28 to 34


36. Click Indoor unit

icon

37. This window will

open


42. Choose indoor unit

model

40. Click OK


39. Accessory window will appear


44. Product specific default

values

43. Choose indoor unit

elevation w.r.t the

floor

45. Software will automatically

take feed load value after

“Create “Network” command

execution.

User Guide

36. Click Indoor unit icon

37. This window will open


39. Accessory window will appear

40. Click OK



43. Choose indoor unit elevation w.r.t the floor

44. Product specific default values

45. Software will automatically take feed load value after “Create “Network”

command execution.



47. Then click your cursor at

specific location where you

want to locate your indoor unit

48. You can see indoor unit icon

like this

49. Repeat the same steps from 36th to

48th for locating other indoor unit.

You can also use copy paste

command for locating other indoor

units.

User Guide

47. Then click your cursor at specific location where you want to locate your

indoor unit

48. You can see indoor unit icon like this

49. Repeat the same steps from 36th to 48th for locating other indoor unit.

You can also use copy paste command for locating other indoor units.


50. Join all indoor unit center to

their corresponding room center

by using “New Pipe” command

Note: Failure to this will not

allocate design load to the

rooms while making Tree

System.

User Guide

50. Join all indoor unit center to their corresponding room center by using “New

Pipe” command

Note: Failure to this will not allocate design load to the rooms while making Tree

System.


51. Adjust indoor unit direction by

clicking Indoor Unit and then

Rotate Angle icon (As per the

piping direction required)


appear

53. Fill the required rotation

angle and then click OK

Note: All rotation will take

place by considering initial

position as reference

54. You can see pipe

connecting point ( dash)

at this location of indoor

unit

User Guide

51. Adjust indoor unit direction by clicking Indoor Unit and then Rotate Angle icon

(As per the piping direction required)


53. Fill the required rotation angle and then click OK

Note: All rotation will take place by considering initial position as reference

54. You can see pipe connecting point ( dash) at this location of indoor unit


55. Click Outdoor Unit icon


59. Select proper unit as per

indoor load requirements

60. Select defrost factor

(Heat Pump model )



58. Auto Selection is only

possible after successful

connection of indoor

units through “Network

Create” command

57. Select optional

accessory if required .

User Guide

55. Click Outdoor Unit icon


57. Select optional accessory if required .

58. Auto Selection is only possible after successful connection of indoor units

through “Network Create” command

59. Select proper unit as per indoor load requirements

60. Select defrost factor

(Heat Pump model )




63. Then click your cursor at

specific location where you

want to locate your outdoor unit

64. You can see outdoor unit icon

like this

User Guide

63. Then click your cursor at specific location where you want to locate your

outdoor unit

64. You can see outdoor unit icon like this


65. Click “New Equipment”

icon


appear

67. Select Y-branch or Header

when required .

User Guide

65. Click “New Equipment” icon


67. Select Y-branch or Header when required .


68. Click your cursor at specific

location where you want to

locate your Y branch

69. You can see Y branch icon like this

70. You can further adjust Y-branch

direction by clicking Y-branch

and then Rotate Angle icon

72. Fill required rotation angle

and then click OK

Note: All rotation will take

place by considering initial

position as reference


User Guide

68. Click your cursor at specific location where you want to locate your Y branch

69. You can see Y branch icon like this

70. You can further adjust Y-branch direction by clicking Y-branch and then

Rotate Angle icon


72. Fill required rotation angle and then click OK

Note: All rotation will take place by considering initial position as reference


73. Finally your drawing will looks

like this having icons of room

load, indoor units, outdoor unit

and Y branch/header

User Guide

73. Finally your drawing will looks like this having icons of room load, indoor

units, outdoor unit and Y branch/header


74. Click “New Pipe”

icon

75. Then click & drag with left

button of your mouse on the

drawing and finally release this

button at indoor/ Y-branch

connecting point

76. You can see refrigerant pipes

drawn between outdoor and Y-

branch or Y-branch and I/D units .

77. Complete the piping circuit at

various points like outdoor unit, Y-

branch/ header and indoor units.

78. Note : Use Ortho On/Off option for drawing

orthogonal pipe. After drawing pipes click

mouse right button on the pipe (on white color

identifier at the middle of pipe) and drag it

slightly by pressing “Shift Key” for placing

your pipe orthogonally.

Ortho

On/Off

User Guide

74. Click “New Pipe” icon

75. Then click & drag with left button of your mouse on the drawing and finally

release this button at indoor/ Y-branch connecting point

76. You can see refrigerant pipes drawn between outdoor and Y-branch or Y-

branch and I/D units .

77. Complete the piping circuit at various points like outdoor unit, Y-branch/

header and indoor units.

78. Note : Use Ortho On/Off option for drawing orthogonal pipe. After drawing

pipes click mouse right button on the pipe (on white color identifier at the middle

of pipe) and drag it slightly by pressing “Shift Key” for placing your pipe

orthogonally.


79. In the Floor Viewer, You can add new floor

80. Right click on Floor icon for adding,

deleting and editing floors.

81. After adding floor right click on

the same floor (Floor2 icon) and

click Edit icon.


83. Fill the floor height (Height

from the linked floor) and

then click Ok.

84. For adding CAD drawing on

the newly added floor

perform steps from 23 to 27.

User Guide

79. In the Floor Viewer, You can add new floor

80. Right click on Floor icon for adding, deleting and editing floors.

81. After adding floor right click on the same floor (Floor2 icon) and click Edit

icon.


83. Fill the floor height (Height from the linked floor) and then click Ok.

84. For adding CAD drawing on the newly added floor perform steps from 23 to

27.


85. Click “New Climb” icon for

connecting added floor (Floor2)

to the previous floor (Floor0).


87. Select the floor to be

linked with the present

drafting floor and click

Ok.

User Guide

85. Click “New Climb” icon for connecting added floor (Floor2) to the previous

floor (Floor0).


87. Select the floor to be linked with the present drafting floor and click Ok.


88. Click the cursor at the desired

point to locate the “climb

piping”.

89. You can see this Icon and

message showing connected

floor

User Guide

88. Click the cursor at the desired point to locate the “climb piping”.

89. You can see this Icon and message showing connected floor


90. After adding the new floor repeat

operation from 28 to 78 for adding

Room, Indoor Units, Y-branch/Header

and Pipes on the new floor.

User Guide

90. After adding the new floor repeat operation from 28 to 78 for adding Room,

Indoor Units, Y-branch/Header and Pipes on the new floor.


91. Click “Create Network” icon for

checking the connected network.

Error message in the System Log

Viewer

92. Error message is displayed on

the error log whenever the

connection between pipe and I/D

unit, Y-branch or O/D unit is not

proper with Error Icon located on

wrong connection

93. Remove the error before

proceeding further.

User Guide

91. Click “Create Network” icon for checking the connected network.

92. Error message is displayed on the error log whenever the connection

between pipe and I/D unit, Y-branch or O/D unit is not proper with Error Icon

located on wrong connection

93. Remove the error before proceeding further.

Error message in the System Log Viewer


94. After removing the error , again

click Create Network icon.

95. If there is no error then “Network

Completion” message will appear

in

System Log Viewer

User Guide

94. After removing the error , again click Create Network icon.

95. If there is no error then “Network Completion” message will appear in

System Log Viewer


96. Click Auto Piping icon

97. Auto Piping command

automatically selects Y-

branch/Header branch name,

pipe diameter and pipe length

User Guide

96. Click Auto Piping icon

97. Auto Piping command automatically selects Y-branch/Header branch name,

pipe diameter and pipe length


98. Click System Check icon

99. On the successful execution of this

command this window will pop-up

100. If there is an error message.

Fix the error and perform

1. Create Network

2. Auto piping

3. System Check

again

User Guide

98. Click System Check icon

99. On the successful execution of this command this window will pop-up

100. If there is an error message. Fix the error and perform

1. Create Network

2. Auto piping

3. System Check again


101. Click Tree icon to view

line diagram of this system

User Guide

101. Click Tree icon to view line diagram of this system


102. Click Schematic Diagram icon

for seeing schematic diagram

of the system

104. Click Drawing Export icon


106. Input name of exporting

file and click Save

103. Click either of these icon for

seeing control wire, power line

and pipe line

User Guide

102. Click Schematic Diagram icon for seeing schematic diagram of the system

103. Click either of these icon for seeing control wire, power line and pipe line

104. Click Drawing Export icon


106. Input name of exporting file and click Save


108. This Window will pop up.

Clicking each menu will generate the

corresponding report

109. Finally press ok for viewing the above

selected report on excel sheet

Note: You need MS Excel program installed

on your computer for executing this

command

107. Click Generate Report

icon

User Guide

107. Click Generate Report icon

108. This Window will pop up.

Clicking each menu will generate the corresponding report

109. Finally press ok for viewing the above selected report on excel sheet

Note: You need MS Excel program installed on your computer for executing this

command


1. Proposal Sheet 2. Contact Detail Sheet 3. Table of Contents Sheet

User Guide

1. Proposal Sheet

2. Contact Detail Sheet

3. Table of Contents Sheet


4. Building-Load

Output Sheet

5. Model Selection

Summary Sheet

6. Outdoor Model

Selection Sheet


4. Building-Load Output Sheet

5. Model Selection Summary Sheet

6. Outdoor Model Selection Sheet


7. Indoor Model Selection Sheet 8. Model Selection Tree


7. Indoor Model Selection Sheet

8. Model Selection Tree


9. Model Selection Diagram 10. Model Selection Analysis Sheet


9. Model Selection Diagram

10. Model Selection Analysis Sheet


1. When outdoor unit is below the indoor units

It is a height between chosen floor and linked floor (can’t be negative)

Height of the indoor unit from the floor on which it is located

This software always consider outdoor unit on topmost floor of the Floor Viewer.

All the distance in Floor Viewer are defined from ground level

User Guide - Tips


2. When outdoor is above indoor unit

1. Outdoor unit is place on the topmost floor of the Floor Viewer(Floor0)

2. Floor1 is linked with Floor0 and Floor2 is linked with Floor1 which implies height between floor 0 and 1 is 5m (15 - 10) and height between floor 2 and 1 is 10m (10 – 0)

3. The below most row in this column (Floor2) is the floor placed at ground level.

3. When indoor units are placed above and below the outdoor unit

1. Outdoor unit is place on the topmost floor of the Floor Viewer(Floor0)

2. Floor1 is linked with Floor0, Floor2 is linked with Floor0 and floor3 is linked with floor2 which implies height between floor 0 and 1 is 5m (15 - 10), height between floor 2 and 0 is 5m (10 –5) and height between floor 3 and 2 is 5m (5-0)

3. The below most row in this column (Floor3) is the floor placed at ground level.

All the distance in Floor Viewer are defined from ground level

User Guide

Uzivatelsky Manual Eng LATS MULTI V

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