Valeo Citysphere S Installation Instructions Manual - page 10
Connecting the air-conditioning unit
Citysphere S
10
4. Connecting the air-conditioning unit
4.1. Connecting the refrigerant / water piping
In delivery condition, the connecting points on the air-conditioning
unit are closed with sealing caps. Prior to mounting the refrigerant
piping the sealing caps must be removed. The unit is pre-filled with
1.1 kg refrigerant R134a. The amount of refrigerant is designed for
a max. pipe length to the front box of 4m.
NOTE:
Extends the pipe a length of 4 m, a reappraisal of the system filling
quantity by Spheros is required.
Theme oil return: A trap must be installed in the suction gas line
(place holder). The refrigerant piping and shut-off valves (Item 1 & 2)
in the vehicle must be provided for thermal reasons and to prevent
condensation with an insulation (Recommendation: Suction and
pressure line).
4.2. Hook-up
The hook-up of the unit should be made according to the wiring
diagram on page 11.
For connecting power supply bolts are provided M8 (+24V) and
M10 (ground). Connect wires with a cable lug acc. DIN 46234.
Take the following torques:
•
Bolt M8:
15 Nm
•
Bolt M10:
20 Nm
The plus pole must be protected after installation with the included
cap to prevent anyone touching it. Use Tyco/AMP ST-GEH 2.5mm
socket housing fort the control signals.
Connections
1 Pressure line: solder sleeve 5/8“: 15 Nm
2 Suction line: solder sleeve 7/8“: 20 Nm
3 Control signal: AMP Connector
4 Plus pole: Bolt M8 max. 15 Nm
5 Ground: Bolt M10 max. 20 Nm
3
4
5
2
1