Air Source Heat Pump Water Heater
31
11 Commissioning
After installing the main unit, water tank, wired controller, waterway system,
fluorine circulation system, and electrical wiring, check the unit based on the
following checklist.
Table 11-1 Checklist for the installation
Check Item
Possible Symptoms Caused by Improper
Installation
Are the main unit and water tank
securely fastened?
The main unit and the water tank may fall, or
vibration or noise may be caused.
Are there any obstructions to the air
outlet and inlet of the main unit?
The unit does not work properly.
Is the connection pipe of the water
tank properly insulated?
Potential hazards may exist.
Are thermal insulation measures taken
on the waterway pipes?
The performance of the unit may be affected
or the pipes may be frozen and damaged.
Is the power voltage consistent with
the voltage indicated in the
nameplate?
The unit may become faulty or the parts may
be burnt.
Does the wire model comply with
specifications?
The unit may become faulty or the parts may
be burnt.
Is a safety check valve installed for the
water inlet pipe?
If the water tank bears high pressure, safety
hazards exist. The water may be returned if
water supply stops.
Is the tap water replenishment
pressure too high?
If the water tank bears high pressure, the
safety check valve discharges water and
abnormal noise is caused.
Is a pressure reduction valve installed
for the water inlet pipe when the water
replenishment pressure is too high?
If the water tank bears high pressure, the
safety check valve discharges water and
abnormal noise is caused.
Is the ground wire of the water tank
reliable?
Potential hazards may exist.
Is the temperature sensor securely
connected?
Performance of the water tank is affected.
Is the temperature sensor inserted to
the bottom of the water tank?
The water temperature displayed in the
wired controller is different from the actual
temperature. The unit is protected from high
pressure.