Gree HOME GMV [224/367] Anti freezing project in winter

Gree HOME GMV [224/367] Anti freezing project in winter
Dc Inverter VRF plus Water Heater Solution Service Manual MAINTENANCE
220
3 ANTI-FREEZING PROJECT IN WINTER
3.1 Cautions of Water System
Don’t place it in the extremely cold environment,or the environment where the ice is easily freezen
Don’t installed it in a place which can’t drain water. Blow-off pipe shall be connected with sewer.
Water tank shall be installed in the place which is convenient for use and maintenance and has floor drain.
The water tank shall be installed in the place to which the children can’t easily get.
The water tank shall be installed close to the terminal water outlet as much as possible to avoid long pipeline of
hot water which will cause heat loss.
The water tank shall also be installed close to the outdoor unit as much as possible.
The power switch of water heater shall be installed in the place which is away from the water.It’s better to
assemble water-proof box.
In low temperature of winter or if the unit hasn’t been started for long time, energize the unit for 8 hours at least
before turning on the unit.
In low temperature of winter, the power can’t be cut off after the unit stops or the protection of anti-freezing will
not work.
If the unit will not be used for long time, drain the water inside the unit, water tank and pipeline through draw off
valve after turning off the power of the unit. Drain steps are as follows: Close the ball valve for water replenishing of
water tank, open the terminal hydrovalve and open the drain of water tank.Then, open draw off valve A or B which
is on the pipeline between the outdoor unit and the water tank and wait until there is no water flowing out. Close all
valves and drain. If user need to add water and start the unit, please refer to the instruction of 3.2.2.
The operations above of different models may be slightly different, so the installation manual of product is the
standard.
3.2 Cautions of Outdoor Unit
If it is installed in an environment where the temperature is below the 0, and the system stands by (power on),
the control system will make anti-freezing run, start the water pump and compressor unitl the temp of water
reaches the safe point so that the water system won’t be iced to damage the equipment. If it will not be used for
long time, drain water of water system to prevent the equipment from damage due to the water iced.
Drain operation of the unit

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