Uponor Push 22A/

Uponor Push 22A Electronic

U N D E R F LO O R H E AT I N G

U P O N O R P U S H 2 2 A /P U S H 2 2 A E L E C T R O N I C

Mar 2006

3U p o n o r P u s h 2 2 A / U p o n o r P u s h 2 2 A E l e c t r o n i c

Uponor Push 22A and Uponor Push 22A Electronic are pump and shunt groups designed to be used during installation of Uponor Underfl oor Heating systems. Uponor Push 22A provides a constant supply line tem-perature, while Uponor Push 22A Electronic is equipped with an outdoor temperature compensation function.

Like all heating systems, underfl oor heating systems require regulation of water temperature and fl ow. If the underfl oor heating is linked to another heating system, e.g. radiator heating, the shunt group is generally needed because the underfl oor heating usually requires greater fl ows and lower water temperatures than other heating systems. The shunts help limit the supply line temperature to the underfl oor heating system when coupled to a 80/60 °C or 55/45 °C system, for example.

Uponor Push 22A has been equipped with a balancing valve that can be used to adjust the pressure drop in the secondary circuit relative to that of the primary circuit.

Note! Always carefully check the pressure rating of the primary circuit.

The circulation pump in the secondary circuit, is automa-tically controlled by the differentil pressure. The speed of the pump is controlled to match the actual conditions in the underfl oor heating system. This means that there is, in general, no need for a by-pass in the secondary circuit.

Uponor Push 22A has the capacity to supply a secon-dary circuit of up to 175 m² with a heat demand of 50 W/m². The corresponding fi gure for Uponor Push 22A Electronic is 220 m² with the same requirements (Wirsbo pePEX Q&E pipes 20x2.0 mm, c/c 300 mm, 9 loops with a maximum loop length of 90 m).

The distance between the secondary connections is adjusted to allow the shunt group to be connected direct to an underfl oor heating manifold. To enable the shunt group to be fi tted in an inverted position, there is an alternative point for the thermometer on the back of the supply pipe.

Integrated balancing valve

Uponor Push 22A and Uponor Push 22A Electronic have been equipped with an integrated balancing valve and return fl ow inhibitor, located in the by-pass between primary return and primary supply. By setting the valve to a suitable value it is possible to control how much of the return fl ow from the underfl oor heating loops goes back to the secondary circuit and primary circuit. Thanks to this it is possible to employ the shunt group even in small-scale systems without a primary pump.

Pump and shunt group for underfl oor heating

In systems with a primary pump, where the primary pump provides insuffi cient pressure, the balancing valve can be used to “help out” and procure adequate primary water, but this should be done with care so as not to disrupt other elements of the primary circuit.

If Uponor Push 22A (secondary circuit) is operating alongside an accumulator tank (primary circuit without pump), you should be particularly careful when adjus-ting the balancing valve. Too great a fl ow through the accumulator tank can disrupt the zoning of hotter and colder water, resulting in more rapid cooling and poorer effi ciency levels.

Uponor Push 22A

4 U p o n o r P u s h 2 2 A / U p o n o r P u s h 2 2 A E l e c t r o n i c

Uponor Push 22A

Basic design, with a constant supply line temperature, this temperature is governed by an automatic thermo-stat with a sensor fi tted after the circulation pump. The thermostat is continuously variable within the range 20–55 °C.

Uponor Push 22A Electronic

Uponor Push 22A can also be supplied with an elec-tronic automatic control system, Uponor ECL Comfort 100, for an outdoor-temperature-compensated supply line temperature. The automatic control unit is supplied complete with outdoor and supply line sensors as well as a thermomotor for controlling the supply line tempe-rature. The electronic automatic control system controls the supply line temperature relative to the outdoor temperature.

If the automatic control unit controls an individual room, e.g. meeting room, workshop or storeroom, the unit can be supplemented by equipment for controlling the room temperature. This will then replace room ther-mostats and actuators. The equipment can be a sensor (item no. 882152) for maximum limit for room tempera-ture or a room panel for overriding an automatic control unit. Room panels are not part of Uponor Wirsbo AB’s standard range, but a quote can be provided on request.

Other functions

• Maximum limit of 55 or 40 °C for supply temperature.• Minimum limit of 15 or 25 °C for supply temperature.• Pump control (pump motion 1 min/3 days).• Anti-freeze protection for heating system.• Manual control of valve motor.• Summer deactivation.

Uponor Push 22A with Uponor WGF 1” manifold and Uponor CoSy Radio room regulation.

Uponor Push 22A Electronic with Uponor WGF 1” manifold and Uponor CoSy Radio room regulation.

9

1

3 2

4

5

6 8

7

1. Primary supply connection with thermostat valve

2. Primary return connection with return valve

3. Built-in balancing valve with check valve

4. Knob for balancing valve

5. Circulation pump

6. Secondary supply connection

7. Secondary return connection

8. Underfl oor heating manifold

9. Primary pump

Circuit diagram - Uponor Push 22A

Timer

If the automatic control unit is supplemented by a weekly timer (item no. 882 156) for Uponor ECL Comfort 100, you can also lower the temperature (se-lected according to prevailing outdoor temperature or at a fi xed value).

5U p o n o r P u s h 2 2 A / U p o n o r P u s h 2 2 A E l e c t r o n i c

Technical data

Pre

ssur

e dr

op (

kPa)

Flow(l/s)

100,00

10,00

1,00

0,10

0,01

3,25 3,5 3,75 4 4,5 5 5,5 6 6,5

Control valve Uponor Push 22AControl valve Uponor Push 22A Electronic

0,001 0,005 0,01 0,05 0,1 0,5 1

Primary supply and return valve

Presetting of return valve in number of turns from closed valve.

Built-in balancing valve

Presetting in number of turns from closed valve.

Pump diagram

Available pressure for secondary circuit with the built-in balancing valve fully open.

III

II

I

Pre

ssur

e (k

Pa)

Flow(l/s)

50

40

30

20

10

0

0 0,1 0,2 0,3 0,4 0,5 0,6 0,7

Pre

ssur

e dr

op (

kPa)

Flow(l/s)

100,00

10,00

1,00

0,10

0,01

0,5 1,0 1,5 3,0

0,01 0,05 0,1 0,5 1

5,0

9,0

6 U p o n o r P u s h 2 2 A / U p o n o r P u s h 2 2 A E l e c t r o n i c

Uponor Push 22A

Circulation pump Grundfos ALPHA+ 15-40 130, single-phase 230 V, 60 W, 0.28 A, electrical capacity regulation in 3 stages with differential pressure regulation.

Primary supply valve Markaryd VR20 DN 20 Kv 0.9 (2K) with automatic capillary pipe thermostat Markaryd ENTZ

Setting range 20–55 °C

Primary return valve Markaryd RVR20 DN 20 Kvs 2.0

Built-in balancing valve Kvs 4.3

Thermometer fi tted on secondary supply line

Item no. 805 94

Technical data

Uponor Push 22A Electronic

Circulation pump Grundfos ALPHA+ 15-40 130, single-phase 230 V, 60 W, 0.28 A, electrical capacity regulation in 3 stages with differential pressure regulation.

Primary supply valve Markaryd VR20 DN 20 Kvs 1.2 with

thermoelectric valve actuator Danfoss ABV 230 V NC

Automatic control unit Uponor ECL Comfort 100

Outdoor sensor ESM 10, Pt-1000 sensor, 1000 � at 0 °C

Supply line sensor ESM 11, Pt-1000 sensor, 1000 � at 0 °C

Primary return valve Markaryd RVR20 DN 20 Kvs 2.0

Built-in balancing valve Kvs 4.3

Thermometer fi tted on secondary supply line

Item no. 805 95

Uponor Push 22A Uponor Push 22A Electronic

Back edge to centre of pipe 14 mm 14 mm

Total construction depth 133 mm 125 mm

Pipe connection Prim. G1/2 internal thread G1/2 internal thread

Pipe connection Sec. G3/4 internal thread G3/4 internal thread

Pipe connection Sec. with eccentric G1 external thread G1 external thread

The shunts’ other dimensions are:

Dimensions 130

92 51

50

80

225

50

50

386

393

XX

XX

UK

06

- 03

-X-S

P (

5: 4

3)

Uponor Wirsbo AB T +46 (0)223 380 00P.O. Box 101 F +46 (0)223 387 10SE-730 61 Virsbo, Sweden W www.uponor.com

In keeping with our policy of continuous improvement and development, Uponor Wirsbo AB

reserves the right to change specifi cations without prior notice.