Fujitsu General New Zealand Ltd - Get Skilled Training

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Transcript of Fujitsu General New Zealand Ltd - Get Skilled Training

ASTA Cooling Only RangeO zone layer protection
Global warming potential 1,725
1987 Montreal Protocol adoption
HCFC Total abolition
New refrigerant Ozone depletion potential : 0 Global warming potential : Lower value
1997 Kyoto Protocol Adoption
2010 2020 1990 2000 2030 1980
Alternative Reduction of greenhouse effect gases
Complete abolishment of ozone depletion substances
HCFC Total abolition
1996 (Advanced countries) Reduction
2013 (Developing countries) Reduction
} R32 has been used in Japan, Indonesia and India for the last 12 months without incident.
} In Australia, Gree and Kelvinator currently have 38 R32 models registered.
} All other brands are currently investigating the release of these products in Oceania, this includes Daikin, Mitsubishi, Panasonic and LG.
} Fujitsu will be one of the first companies to sell these products.
EER
} Combustion will not occur unless three conditions are met, Refrigerant concentration, constant oxygen, and an ignition source.
Refrigerant concentration
Minimum Ignition energy 30 to 100 mJ
Constant oxygen
(0.3 to 0.6 kg/m3)
There is not enough concentration to ignite even if all the refrigerant should leak from 7.1kW class model in an approximately 7m2 room.
Refrigerant concentration area
4 km/h
R32
Even if ignited, the flame propagation speed is slower than the speed of a person walking.
Approx 1.9 km/h R32 combustion speed
The risk of fire spreading is quite low.
} Three items engineers considered for fire prevention
Construction that makes refrigerant stagnation minimised
Electrical parts have been designed to make ignition difficult – non spark components
Chassis design makes fire propagation difficult
The risk of fire has been reduced.
Releasing refrigerants into the atmosphere is illegal • Refrigerators, freezers and air-conditioning units contain refrigerants that
damage the environment. • Synthetic greenhouse gases (SGGs) are now widely used as refrigerants in fridges
and air-conditioning units. Under the Climate Change Response Act (CCRA) 2002 it is illegal to release SGGs into the atmosphere. (This came into effect on 1 January 2013.)
• Refrigerants that are ozone-depleting substances are being phased out under
the Ozone Layer Protection Act (OLPA) 1996. It is illegal to release these refrigerants into the atmosphere.
• The Environmental Protection Authority has enforcement powers under the CCRA and OLPA. If you release SGGs or ozone-depleting refrigerants into the atmosphere, there are serious penalties.
• It's important that you know what refrigerants the appliances you work with contain, and that you don't release these into the atmosphere.
Approved fillers • Anyone filling compressed gas containers with gas must be an approved
filler. This requirement applies to all compressed gases, including air. What is an approved filler? • An approved filler is someone certified to fill compressed gas
containers, such as: 1. industrial gas cylinders 2. liquefied petroleum gas (LPG) cylinders 3. self-contained underwater breathing apparatus (SCUBA) 4. self-contained breathing apparatus (SCBA) 5. fire extinguishers 6. aerosol cylinders 7. paintball cylinders
} It is illegal to retrofit or convert a refrigeration or air conditioner appliance with a refrigerant it is not designed for.
} Electrical safety regulators advice on converting systems
} and equipment is: 1. If equipment has not been confirmed as being
designed, manufactured and tested to be compliant to relevant electrical safety standards for use with the proposed refrigerant then conversion of the equipment or use of the proposed refrigerant should not occur.
2. All domestic electrical appliances must be shown to comply with the relevant electrical safety product standard for use with the proposed refrigerant.
} Customers to have completed a recognised flammable gas fillers course and be certified.
} Attended a Fujitsu R32 Training Course } Completed a test questionnaire and passed. } Prove ownership and use of torque spanner
set } Sign the R32 product supply agreement
Supply Agreement
} When servicing an air conditioner containing a Flammable refrigerant, the service mechanic must set up a temporary flammable zone:
} Manufacturers responsibility: } Cartons
} Installers Responsibility Class Label Piping Label
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2013 New Line up
Image unification by simple design that beautifully harmonizes with the interior
2013 New Line up
Features
Cooling
Cooling
Cooling
2.5kW
2.5kW
Capacity class(kBtu) 7 9 12 18 22 24 Capacity class(kW) 2.1 2.5 3.5 5.0 6.0 7.1
KU Series (Designer range)
KM Series (Reverse Cycle)
5.0 3.5 3.0
5.0 3.5 3.0
Blue : Cooling Operation Red : Heating Operation
Features
4.0 2.0
2.0 2.5
DC Rotary Compressor
High Efficiency Refrigerant
+ 1 row × 4 stages
Human Sensor
Heating (KM series)
Cooling
Features
} The diffuser is automatically adjusted to the ideal angle so that air direction is matched to the operation mode for better circulation
Features
Simple Remote Controller
(Accessory)
(Option)
The air conditioner automatically stops when the card key is removed from the door when the customer is leaving the hotel room.
Wired Remote Controller
Off Relay
or or
Capacity class(kBtu) 7 9 12 18 22 24 Capacity class(kW) 2.1 2.5 3.5 5.0 6.0 7.1
KU Series (Design model)
KM Series (Reverse Cycle)
Installation
Contents
1. Product Special Measures 2. Tools to Use for Installation 3. Installation Method and
Precautions
47
Copyrights 2013 Fujitsu General Limited, Engineering Support. All rights reserved.
1. Product Special Measures The products use the R32 refrigerant with lower flammability characteristics, so special measures are required for the products.
A flare-less joint is used to prevent refrigerant leaks and comply with safety standards.
Electrical component cover design prevents fire from spreading.
Pipe cover design prevents fire from spreading.
49
Copyrights 2013 Fujitsu General Limited, Engineering Support. All rights reserved.
The following R32 tools are same as R410A tools, except the part. 2. Tools to Use for Installation
Tool Name Note
1 Vacuum pump
2 Refrigerant Recovery
3 Leak detector
4 Cylinder bung
5 Gauge manifold
6 Charge hose
7 Torque wrench
8 Flare tool
9 Pipe cutter
10 Pipe bender
11 Hex wrench
14 Flare-less joint nut removal tool
Same as R410A tool ( Those that use a series motor ,use a carbon brush, cannot be used. )
Same as R410A tool
Same as R410A tool
Same as R410A tool
Same as R410A tool
Same as R410A tool
Same as R410A tool
Same as R410A tool
Same as R410A tool
Same as R410A tool
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Copyrights 2013 Fujitsu General Limited, Engineering Support. All rights reserved.

New piping connection method
3. Installation Method and Precautions
Indoor unit
Cannot be reused after being used once.
At factory shipment
Tentative
3-1 Connection method using the flare-less joint nut 3-2 Method for removing the flare-less joint nut
3. Installation Method and Precautions
The following items will be explained.
Step 1 ~ Step 5
Step 1 ~ Step 5
STEP 1
STEP 2
Outdoor unit side
Connection pipe diameter [mm (in.)] L [mm] 6.35(1/4) dia. 20 to 21 9.52(3/8) dia. 21 to 22
12.70(1/2) dia. 25 to 26
L
Draw a line to check the insertion of the pipe to be connected to the indoor unit.
Turn the nut in the arrow direction to open the pipe insertion opening.
Indoor unit side Outdoor unit side
3-1 Connection method using a flare-less joint nut
One-half turn
3. Installation Method and Precautions
STEP 3 Insert the pipe into the flare-less joint until you can no longer see the line you drew.
Outdoor unit side
Indoor unit side
Outdoor unit side
Indoor unit side
Use a torque wrench to apply torque to the flare-less joint nut.
Tightening nut (hexagon) [mm (in.)]
Tightening torque [N·m (kgf·cm]
6.35(1/4) dia. 16 to 18 9.52(3/8) dia. 32 to 38
12.70(1/2) dia. 49 to 58
Tighten loosely by hand
Same as R410A
STEP 5 Check the following 2 points to make sure the pipes are connected firmly.
Outdoor unit side
Indoor unit side
3. Installation Method and Precautions
D Check 1: Make sure the D gap is 0.5 [mm] or less.
Check 2: Make sure you cannot see the line to confirm how far the pipe is inserted.
OK NG
3. Installation Method and Precautions
STEP 1 Use a torque wrench to remove the outdoor unit side nut. 3-2 Flare-less joint nut removal method
Outdoor unit side
Indoor unit side
Torque wrench
STEP 2 Insert a flathead screwdriver into the plastic cover gap to split the cover.
Outdoor unit side
Indoor unit side
Flathead screwdriver Plastic part gap
3. Installation Method and Precautions
STEP 4 Attach the flare-less joint removal tool to the flare-less joint.
3-2 Flare-less joint nut removal method
Outdoor unit side
Indoor unit side
Loosely tighten by hand
STEP 3 Pass the outdoor unit side pipe through the flare-less joint removal tool.
Outdoor unit side
Indoor unit side
Flare-less joint nut removal is completed
3-2 Flare-less joint nut removal method
STEP 5 Use a torque wrench to apply torque to removing the flare-less joint removal tool .
Outdoor unit side Indoor unit side
Outdoor unit side Indoor unit side
3. Installation Method and Precautions
Flare-less joint nut removal is completed
3-2 Flare-less joint nut removal method
STEP 5 Use a torque wrench to apply torque to removing the flare-less joint removal tool .
Outdoor unit side Indoor unit side
Outdoor unit side Indoor unit side
3. Installation Method and Precautions 3-2 How to acquire the flare-less joint nut and flare-less joint nut removal tool
Before release
2. Flare-less joint nut removal tool Provide
1. Flare-less joint nut 2. Flare-less joint nut removal tool
12.70(1/2) dia. 9.52(3/8) dia.
Tentative