- 11-
Fill the system slowly ensuring bleed valves are open (if not automatic).
3.5-2: Inspection Before Start up
1)
Mechanical Inspection:
a.
Check the cabinet and inside pipe system for possible damage during transportation.
b.
Check that the heating water circuit is filled and well vented. Check the pipe system for leaks.
c.
Check the Fan making sure it can move freely.
2)
Electric System Inspection
a.
Check the power supply (voltage/frequency) matches the rating label and specification.
b.
Check all the electrical connections for loose or damaged wires due to transportation.
3)
Pipe Inspection
a.
Check all the valves, and water flow directions.
b.
Check for any possible leaks inside or outside of unit.
c.
Check the insulation of all the pipes.
3.5-3: Start up and Commissioning
a.
After the system inspection is finished, startup can begin.
b.
Connect the power supply; switch on the isolator to turn on the heat pump.
c.
The circulation pumps starts immediately. After 30 seconds, the fan motor starts. After another 10 seconds,
compressor starts.
d.
Air is initially released from the hot water and venting may be necessary. If bubbling sounds can be heard
from the heat pump, the circulation pump or radiators the entire system will require further venting. When
the system is stable (correct pressure and all air eliminated) the automatic heating control system can be
set as required.
e.
Check heating water inlet/outlet temperature difference after the system is stable.
f.
Check the compressor exhaust and suction temperature.
g.
Adjust the parameters according to different weather conditions and user requirements.
4. CONTROLLER MANUAL
4.1: Electric Parts Control Program working theory
a).
Compressor
After the compressor is shut down, it has a minimum interval of 3 minutes before the next
start up
The initial "power-up" does not require the protection of three minutes;
During defrost, compress on/off interval is based on the defrost parameters.
b) Start up/Shut down Cycle
When the heat pump switches on, the water circulation pump and the fan will start 60
seconds before compressor
When the heat pump switches off, the water circulation pump shuts down 30 seconds after
the compressor. The fan switches off 5 seconds after the compressor
During defrost, the water circulation pump does not stop running;
c) 2
nd
heat source starting
Содержание AH9
Страница 1: ...1 DC INVERTER MONOBLOCK AIR TO WATER HEAT PUMP AND CHILLER User Manual REV WR 2017V8...
Страница 9: ...9 Wiring Diagram 3 Phase 3 4 1 Installation Drawing...
Страница 21: ...21 5 1 Internal View 5 2 System Drawing AH9 11 16 17S 25S...
Страница 22: ...22 5 3 Dimensions Model 9 W 1090 D 420 H 780 A 440 B 810 16 17S 1280mm for 16 17S 1462mm for 25S...