17 /20
56208004-01
Installation instructions
How to evacuate the system:-
1. Unscrew and remove caps from 2 and 3 – way valves.
2. Unscrew and remove cap from service port on the suction valve.
3. Connect low pressure hose of refrigeration gauge set, to the service port.
4. Connect between refrigeration gauge set and vacuum pump
5. Start vacuum pump and run until a vacuum of 10mm Hg absolute is reached.
6. With vacuum pump still running close the low-pressure valve on the gauge manifold. Then stop
the vacuum pump.
7. Open the 2 – way valve ¼ turn then close it after 10 seconds. Check tightness of all joints using
liquid soap or an electronic leak detector.
8. Turn 2 and 3 – way valves to the fully open position.
The suction gauge should register a pressure of 10-12b depending on ambient temperature.
To test the system, run the indoor unit in cooling mode at high speed.
Typical low pressures 6-6.5b.
9. Remove all hoses replace and tighten all valve caps.
NEVER RUN THE UNIT IN HEATING MODE WITH THE GAUGES CONNECTED
NOTES
• Please read this manual before installing and using the ECO+ heat pump system.
• Do not let air enter the refrigeration system or discharge refrigerant when moving the equipment.
• Test run the system after finishing the installation, and record details of its operation.
• The type of fuse used on the indoor unit controllers is 50T, with rating 3.15A,T, 250V.
• The system fuse is to be provided by the user according to the current at maximum power input.
Use of an alternative over-current protective device is acceptable.
• The electrical isolator must be accessible after the installation of the appliance, to allow easy
isolation.
If not possible, connect the supply via a double pole isolator with contact separation of at least
3mm, placed where it is accessible following completion of the installation.
To Next Page
Loading...
