2. Pipeline installation system notice
3. Installation of the heat source system
2.1. The water quality requirements: it should be noted the water quality problems,
furring and other impurity will have great impact to the normal operation of the
system. Therefore, the circulating water should go thought pre-filtration before inflow
to the system, and be soften. Please see”water requirements” chapter.
2.2. Please use pipe pincer to clamp the unit pipes, and then use another to fasten
the connection. Do not use a pipe pincer clamp to unit with fasten connection directly,
otherwise the pipes would damaged due to excessive torque, resulting in pipe crack
and leakage.
2.3. Circulation pump should be installed at the heat pump inlet. The expansion tank
should be installed at the entrance of circulation pump. Filters should be installed at
the circulation heat pump water inlet to avoid sundries blocking heat exchangers.
2.4. Water treatment to avoid damage to heat exchangers if the water quality is poor.
2.5.Air vent must be installed in the piping system to improve water system operating
efficiency.
2.6. Water flow switch must be set up in the water pipes, and be wired to the heat
pump controller system.
2.7. The water pipe construction and design must have anti-freeze, to prevent
damage to the heat pump. Ethylene glycol and propanol can be added in the water as
antifreeze.
2.8. In order to avoid the pipe to freeze when the het pump has a long downtime in
winter, the water should be discharged out from the piping system.
2.9. All pipes should be well insulated with thermal insulation, to reduce heat loss at
the most extent and keep high efficiency.
2.10. The inside of all water pipes must be cleaned before they are installed into the
water system.
2.11. The heat pump does not apply to open-water systems. Pollution of recycled
water would cause damage to the unit.
3.1. Required water quality
Frequent problems with the operation of ground source heat pumps are as follows:
(1). Erosion on the evaporator and the water feed pipes,
(2). Sludge deposits or blockage inside the evaporator and feed pipes.
(3). Blockage of the return well.
To prevent these problems, the quality of the water used as heat source water must
meet the following condition:
INSTALLATION & INSTRUCTION
MANUAL
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