Air to water heat pump operation manual
P7
1.2.1 Power on
→
water pressure switch test
→
open water supply valve to supply water
→
fan on
→
compressor on,
after high water level connected, water supply valve close, if water tank temperature doesn’t reach preset
temperature, cycle water pump on, water was heating to preset temperature circularly, then power off.
1.3 Supply water controlling
（
1)when high
、
middle
、
low water level switches all disconnect, water supply valve supply water, then check water
pressure switch, if water pressure switch is closed up, then fan on, compressor on,
thermostat on, begin to
supply water untill high water level switch closed up, thermostat and water supply valve close ,stop supplying
water.
（
2
）
if high water level switch have been closed up, when the high water level switch disconnect, it will not supply
water at once, it must untill middle water level disconnect. Then water supply valve on, fan on, compressor on,
thermostat on.
1.4 Water temperature controlling
Range of water temperature controlling: 35-65
℃
, when preset temperature reach 60
℃
, if want to set the water
temperature
＞
60
℃
, press
▲
key over 6s , when hearing a “toot” voice , move away finger , press
▲
key again,
now the max water temperature can be set at 65
℃
.
1.4.1 Running controlling
ON
OFF
Low water level
high water level
2
2
2
2 .Auxiliary
.Auxiliary
.Auxiliary
.Auxiliary electric
electric
electric
electric heating
heating
heating
heating controlling
controlling
controlling
controlling
2.1
2.1
2.1
2.1
Condition of auxiliary electricity heating startup
A. under heating hot water state;
B. water tank tempe5
℃≤
preset temperature
C. water tank temperature
＜
45
℃
;
D. environmental temperature
≤
L5
All of the above conditions are met at the same time, the auxiliary electric heating startup.
2.2
2.2
2.2
2.2
Condition of auxiliary electricity heating stop.
A. under forced defrosting state;
B. water tank temperature
≥
preset temperature
C. water tank temperature
≥
50
℃
D. environmental temperature
＞
L5
Any one of above conditions is met, the auxiliary electric heating will stop
3
3
3
3
、
Defrosting
Defrosting
Defrosting
Defrosting running
running
running
running
（
at the condition of parameters are not changed, the default defrosting process of system is
following
，
if need amending, then defrosting will be according to the amended method
）
3.1
、
conditions of enter defrosting
A,cumulative runtime of compressor reach 35 minutes when heating, and continuing runtime over 6 minutes
B,evaporator copper pipe temperature under h2 (the original valueis -1
℃
,changeable)
；
If both A,B conditions are met,then enter defrosting, from beginning to the end of defrosting, LCD display
defrosting signal. (when defrosting, cycle water pump on,4-way valve on, compressor on,fan off,thermostat off)
。
C,Running state when defrost:
Compressor off, fan off, postpone 50s , 4-way valve open, postpone 40s still ,compressor on,cycle water pump on.
3.2
、
conditions of quit defrosting
