7.7.3 DIP Switch Function
Located on the C.B. printed circuit board are 7 sets of small white switches known as DIP switches. The DIP switch number is print-
ed on the circuit board next to the relevant switches. The word ON is printed on the circuit board and on the DIP switch block itself.
To move the switch you will need to use a pin or the corner of a thin metal ruler or similar.
DIP switch settings are listed below in Table 7.7.1.
Only an authorised installer can change DIP switch setting under one's own responsibility according to the installation condition.
Make sure to turn off heat pump unit power supplies before changing the switch settings.
DIP switch
Function
OFF
ON
Effective timing
Default
settings
SW1 SW1-1
—
—
―
—
OFF
SW1-2 Abnormal history clear
Normal
Clear
Always
OFF
SW4 SW4-1
—
—
―
—
OFF
SW4-2
—
—
―
—
OFF
SW5 SW5-1
—
—
―
—
OFF
SW5-2 Power failure automatic recovery*1
No auto recov-
ery
Auto recov-
ery
When power supply
ON
ON
SW5-3
—
—
—
—
OFF
SW5-4
—
—
―
—
OFF
SW5-5
—
—
—
—
OFF
SW5-6
—
—
―
—
OFF
SW6 SW6-1
—
—
―
—
OFF
SW6-2
—
—
—
―
OFF
SW6-3
—
—
—
—
OFF
SW6-4
Model select
Heat pump setting
―
OFF
SW6-5
ON
SW6-6
OFF
SW6-7
ON
SW6-8
OFF
SW7
*2
SW7-1
—
—
—
―
OFF
SW7-2
—
—
—
―
OFF
SW7-3
—
—
—
―
OFF
SW7-4
—
—
—
―
OFF
SW7-5
—
—
—
―
OFF
SW7-6
—
—
—
—
OFF
SW8 SW8-1
—
—
—
OFF
SW8-2
—
—
—
―
OFF
SW8-3
—
—
—
―
OFF
SW9 SW9-1
—
—
Always
OFF
SW9-2
OFF
SW9-3
OFF
SW9-4
OFF
<Table 7.7.1>
Note:
*1 “Power failure automatic recovery” can be set by either remote controller or this DIP SW. If one of them is set to ON, “Auto
recovery” activates.
*2 Please do not use SW7-3, 4 usually. Trouble might be caused by the usage condition.
1
3
1 3
TH33
(YE)
1 3
63HS
(WH)
LED1
LED2
1 3
63H
(YE)
1 3
63L
(RD)
1 3
CNDM
(WH)
3 1
1 3
1 3
1 3
SW4
SW8
SW5
SW6
SW7
SW9
SW1
CNDC
(PK)
CNS
(WH)
SV1/CH
(GY)
SV3/SS
(WH)
21S4
(GN)
CNAC
(WH)
1 3
TH3
(WH)
1 4
TH7/6
(RD)
1 5
LEV-A
(WH)
1 7
CN2
(RD)
1 7
CNF1
(WH)
1 14
CNM
(WH)
1 2
TH32
(BK)
1 2
TH34
(RD)
1 2
CN4
(WH)
2 1
TH4
(WH)
7.7.4 Connecting inputs/outputs
Inputs/Outputs
Name Connector
Item
MC
TB-U/V/W
Motor for compressor
(Mediate Power board)
63H
63H
High Pressure switch
63HS 63HS
High Pressure Sensor
FS
63L
Flow switch (Ambient loop)
TH3
TH3
Thermistor (Ref. liquid temp.)
TH4
TH4
Thermistor (Discharge temp.)
TH7
TH7/6
Thermistor (Outdoor temp.)
TH8
CN6
Thermistor (Heat sink temp.)
TH32
TH32
Thermistor (Ambient loop inlet temp.)
TH33
TH33
Thermistor (Comp. surface temp.)
TH34
TH34
Thermistor (Ambient loop outlet temp.)
LEV-A LEV-A
Linear Expansion Valve
CNM
CNM
Connection for option
B-254
Water to Water Heat Pump (WTW)
7
Cylinder
unit/
Hydrobox/GSHP/WTW
Summary of Contents for EHWT17D-MHEDW
Page 1: ...DATA BOOK Vol 5 5 R32 ...
Page 2: ......
Page 4: ......
Page 71: ...MEMO ...
Page 128: ......
Page 131: ......