Use and Care Manual

X1.GW531B.TY.F01M.Manufacturer Instruction Manual. 9/13
12 Control
12.1 Logic of compressor
Control logic:
The increase temperature process, the compressor ON when PV ≥SV + ADD.
The decrease temperature process, the compressor OFF when PV < SV – SUB
Note: PV: The liquid temperature SV: set temperature
ADD: load temperature diefference SUB: unload temperature difference
12.2 Logic of pump freeze protection
a) When [T.freeze prot] = “forbid”, there is no pump freeze protection.
b) Otherwise under the idle state:
if SV ≤ [T.freeze prot], the pump opens;
if SV ≥ [T.freeze prot] + 2, the pump will close after 10 seconds.
13 Manufacturer Parameters Table
Parameters set by the manufacturer and parameter meanings are listed as follows: ("*" is for parameters of
the configuration guide)
Setting
Item
Name of
Parameter
Factory
Default
Setting Range
Remark
Func.
Setting
*One-Key
start
Forbid
Forbid ~ Use
Forbid: the compressor is allowed to ON only when
press the compressor button;
Used: the compressor allows ON when press the pump
button.
Auto start up
Forbid
Forbid ~ Use
Use: the unit starts automatically when powered on;
Forbid: the unit doesn’t start automatically when
powered on;
When the user parameter [On/Off type] is set to
be"Remote", the electrical autostart is invalid.
DO1 fuction
Alarm
signal
Alarm signal;
Run signal
If [DO1 fuction] is “Alarm signal”,
N.O: The
Alarm output
Keep
when
mute
Keep when
mute;
Stop when
mute
Keep when mute: press the “alarm output” parameter to
take
action once a fault occurs;
Stop when mute: press the “alarm output” parameter to
take action in case of no fault after silencing.
Alarm type
N.O
N.O~N.C
N.O: the alarm relay is ON in case of faults;
N.C: the alarm relay is OFF in case of faults.
*Low water
lv.
Pump
stop
Pump stop ~
Pump keep
Pump stop: stop the cold pump in case of low water
level fault;
Pump keep: do not stop the cold pump in case of low
water level fault.
*Lack of
water
Pump
stop
Pump stop ~
Pump keep
Pump stop: stop the cold pump in case of cold water
flow fault;
Pump keep: do not stop the cold pump in case of cold
water flow fault.
*Current
detect
Use
Forbid ~ Use
Use: there is a current detection module;
Forbid: no current detection module
*Comp.I
rating
0.3A
0~35.0A
0A: do not detect the current fault.
When [Current detect] is set “Forbid”, those parameter is
not displayed.
(if the rating current of Comp or Pump is lower 1A, when
*Pump. I
rating
0.3A
0~35.0A