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SINCLAIR
4.3.2 Precautions for Operation in Winter
(1) Before starting the unit which has not been used for a long period or in quite low temperature in
winter, energize the unit for at least 8 hours.
(2) Do not disconnect the power supply when the outdoor temperature is quite low in winter;
otherwise, the automatic antifreeze protection will fail to work.
(3) If the unit will not be used for a long period, power off the unit and drain the water in the water
tank and pipe through the drain valve.
Drain the water by following the steps below:
1) Cut off the power supply and close the cut-off valve at the water outlet of the tap faucet.
2) Open the cut-off valve at the hot water drain outlet and valve in user water use site.
3) Open the cut-off valve on the joint (3-way) pipe.
4) Close the drainage cut-off valve after draining water on the water tank to complete
drainage operation.
If the unit needs to be used after water drainage, fill the water tank fully with water before starting the
unit. For details, see the description on air exhaust for the water pipeline during unit commissioning.
4.4 Commissioning Completed
Running Parameters for Commissioning of Household Air Source Water Heaters
Project name:
Commissioning performed by:
Rated capacity of the outdoor
unit (kW)
Maximum drop between the
outdoor unit and water tank
(m)
Status Parameter
Status parameters of the
outdoor unit
Parameters of the water tank
Summary
4.5 Reference Value for Judging Running Parameters of the Unit
(Commissioning Inspection)
After the ON/OFF button is pressed for a while, the wired controller displays the heat up icon. The
fan and compressor run properly and the unit runs stably without obvious shake and noise. During heat
up, the water temperature displayed on the wired controller increase gradually. After the unit runs
properly for at least 30 minutes, it can be delivered to the user.
AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL
Commissioning status:
Outdoor ambient
temperature
Power supply voltage
Air intake temperature
Air exhaust temperature
Temperature of the
temperature sensor for
water outlet pipe
Temperature of the water
temperature sensor
48
Capacity of the
water tank
Length of system pipe
□ Heat up
Unit
Before Startup
°C
V
°C
°C
°C
°C
Unit model:
Water tank
model:
Date
30 minutes
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