Cooper & Hunter GRS-C3.5/A1-K User manual

Service manual
HEAT PUMP WATER HEATER

CONTENTS
PRODUCT......................................................................................................2
1 MODELS LIST ............................................................................................................ 2
1.1 Main Unit ..........................................................................................................................................2
1.2 Water Tank .......................................................................................................................................2
2 NOMENCLATURE ...................................................................................................... 3
2.1 Main Unit ..........................................................................................................................................3
2.2 Water Tank ......................................................................................................................................3
3 FUNCTION.................................................................................................................. 4
4 PRODUCT DATA ........................................................................................................ 4
4.1 Product Data at Rated Condition......................................................................................................4
4.2 Operation Range..............................................................................................................................6
4.3 Operation Performance....................................................................................................................6
5 PIPING DIAGRAM ...................................................................................................... 9
CONTROL.................................................................................................... 11
1 OPERATION FLOWCHART ......................................................................................11
2 MAIN LOGIC ............................................................................................................. 12
2.1 Heating Mode.................................................................................................................................12
2.2 Defrosting Mode.............................................................................................................................12
3 WIRED REMOTE CONTROLLER ............................................................................ 13
3.1 Dimension ......................................................................................................................................13
3.2 Function..........................................................................................................................................13
3.3 Installation ......................................................................................................................................18
INSTALLATION............................................................................................20
1 UNITS INSTALL ........................................................................................................ 20
1.1 Installation Positions.......................................................................................................................20
1.2 Matters need Attention ...................................................................................................................20
1.3 Dimension Data..............................................................................................................................20
1.4 Installation Clearance Data ............................................................................................. 21
2 ELECTRIC WIRING WORK...................................................................................... 23
2.1 Wiring Principle ..............................................................................................................................23
2.2 Electric Wiring Design ....................................................................................................................23
6SHFL¿FDWLRQRI3RZHU&RUG$LU6ZLWFK......................................................................................25
MAINTENANCE...........................................................................................28
1 ERROR CODE LIST ................................................................................................. 28
2 FLOW CHART OF TROUBLESHOOTING ............................................................... 29
3 WIRING DIADRAM ................................................................................................... 33
4 DISASSEMBLY AND ASSEMBLY PROCEDURE OF MAIN PARTS ....................... 36
5 EXPLODED VIEWS .................................................................................................. 42

1
Heat Pump Water Heater
Service Manual
PRODUCT
QSPEVDU

2
Heat Pump Water Heater
Service Manual
QSPEVDU
PRODUCT
1 MODELS LIST
1.1 Main Unit
Model Product Code Nominal
Capacity (kW) Refrigerant 3RZHU6XSSO\
93K+] Appearance
GRS-C3.5/A1-K ER02000052 3.5
R22
9a+]
GRS-C5.0/A1-K ER02000061 5.0
GRS-C7.2/A1-K / 7.2
GRS-C3.8/NbA-K ER02000043 3.8
R134a
GRS-C5.0/NbA-K ER02000111 5.0
1.2 Water Tank
Model Name Product Code Model volume (L) Appearance
SX150LC/B1-K ER20000050 150
SX200LC/B1-K ER20000070 200
SX250LC/B1-K ER20000090 250
SX300LC/B1-K ER20000100 300
SX350LC/B1-K ER20000110 350
SX400LC/B1-K ER20000120 400
SXD150LC-K ER20000040 150
SXD200LC-K ER20000060 200
SXD250LC-K ER20000080 250
SXD300LC-K ER20000130 300

3
Heat Pump Water Heater
Service Manual
QSPEVDU
2 NOMENCLATURE
2.1 Main Unit
G RS - C 3.5 / Nb A1 - K
1 2 3 4 5 6 7
NO. Description Options
1C&H G
2 Heat Pump Water Heater RS
3 Heating style S = Static, C = Circulating
4 Heating Capacity 3.5kW
5 Refrigerant Nb = R134a, Default = R22
6 Design Serial Number A1
73RZHUVW\OH 220-240V-3K +]
2.2 Water Tank
SX ƶD 250 L C ƶ/ B1 - K
1234567 8 9
NO. Description Options
16\PERORIKHDWSXPSZDWHUWDQN SX
2 Tank type /DFNFRPPRQKHDWSXPSZDWHUWDQN
9KHDWSXPSZDWHUWDQNIRUPXOWL95)V\VWHP
3 Function code /DFNQRHOHFWULFKHDWLQJIXQFWLRQ
'HOHFWULFKHDWLQJIXQFWLRQDYDLODEOH
41RPLQDOZDWHUWDQNYROXPH 100=100L 150=150L 200=200L
5 Structure type %:DOO0RXQWHG7\SH
L-Floor Standing Type
6 Bearing /DFNQRQEHDULQJZDWHUWDQN
&EHDULQJZDWHUWDQN
77\SHRIKHDWH[FKDQJHWXEH
/DFNQRKHDWH[FKDQJHU
-LQQHUFRLOVWDWLFKHDWLQJ-VLQJOHFRLO
-GRXEOHFRLOV
-:RXWHUFRLOVWDWLFKHDWLQJ
'KHDWLQJFRLOZLWKÀRRU'VLQJOHFRLO'GRXEOHFRLOV
8 Serial number A,B,C……
93RZHU a93K+]

4
Heat Pump Water Heater
Service Manual
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3 FUNCTION
Function Description
(I¿FLHQWDQGHQHUJ\VDYLQJ
7KHXQLWLVDXWRPDWLFDOO\DGMXVWHGE\HOHFWURQLFH[SDQVLRQYDOYH
&23LV5XQQLQJFRVWLV RIWKDWRIHOHFWULFZDWHUKHDWHURIWKDWRIJDVZDWHU
KHDWHUDQGRIWKDWRIIXHOZDWHUKHDWHU
6DIHDQGHQYLURQPHQWDO
friendly
7KHUHLVQRQHHGRIDQ\HOHFWULFKHDWLQJRUFRPSOHWHVHSDUDWLRQEHWZHHQZDWHUDQG
HOHFWULFLW\WRDYRLGSRVVLEOHHOHFWULFVKRFN:LWKRXWSRVVLEOHWR[LFLWLHVRI&2 XVHU¶VVDIHW\
can be ensured.
Reliable and durable
$GRSWLQJVSHFLDOFRPSUHVVRUWKHXQLWLVUHVLVWDQWWRKLJKWHPSDQG SUHVVXUH7KHZDWHU
WDQNDGRSWVDGYDQFHGVWDLQOHVVVWHHOLQQHUFRQWDLQHUZLWKXOWUDORQJGXDOPDJQHVLXPVWLFNV
WRHQVXUHORQJOLIHVSDQRIWKHV\VWHP
Easy installation :LWKRXWOLPLWDWLRQRIHQYLURQPHQWWKHXQLWFDQEHLQVWDOOHGLQNLWFKHQEDWKURRP EDOFRQ\
JDUDJHVWRFNURRPRUEDVHPHQW,WLVDOVRVXLWDEOHIRUVN\VFUDSHUVYLOODDQGVRRQ
Easy operation
:DWHUWHPSHUDWXUHFDQEHVHW:DWHUVXSSO\FDQEHRQRURIIGHSHQGLQJRQZDWHU
WHPSHUDWXUHDQGZDWHUYROXPHVRWKDWKRWZDWHUFDQEHVXSSOLHGDWDQ\WLPH8QLWRQRII
FDQEHVHWE\XVHUDFFRUGLQJWRUHTXLUHPHQWVWKHXQLWZLOOVWRSRQFHZDWHUWHPSHUDWXUH
UHDFKHVWKHVHWWLQJSRLQW5XQQLQJRIXQLWLQHOHFWULFSODW\NXUWRVLVLV SRVVLEOHWRUHGXFH
cost.
Intelligent defrosting 7KHXQLWZLWKDQWLIUHH]LQJDQGLQWHOOLJHQWGHIURVWLQJIXQFWLRQVFDQHIILFLHQWO\SUHYHQW
IUHH]LQJDQGIURVWLQJ
All-day use 7KHXQLWFDQPDNHDQGVXSSO\KRWZDWHUDOOGD\LQGHVSLWHRIQLJKWRYHUFDVWDQGUDLQ\GD\V
4 PRODUCT DATA
4.1 Product Data at Rated Condition
4.1.1 Main Unit
Models GRS-C3.5/A1-K GRS-C5.0/A1-K GRS-C7.2/A1-K
Nominal Capacity Heating
kW 3.5 5 7.2
%WXK 11942 17060 24566
3RZHU&RQVXPSWLRQ Heating kW 0.9 1.15 1.75
3RZHU6XSSO\ 9a3Ka+]
Safeties
+LJK/RZSUHVVXUHVZLWFKFRPSUHVVRUWKHUPDO
SURWHFWLRQRYHUFXUUHQWSURWHFWLRQODFNRISKDVHDQWL
SKDVHSURWHFWLRQDQWLIUHH]LQJSURWHFWLRQ5
Refrigerant
Type R22
&KDUJH kg 0.65 1 1
Compressor
Type Rotary
NO. 1 1 1
Condenser
+HDW([FKDQJHU Tube-in-tube
Water In/Out
Pipe Diameter ,QFK 3/4 3/4 3/4
(YDSRUDWRU
+HDW([FKDQJHU )LQW\SHKHDWH[FKDQJHU
Fan Motor
3RZHU,QSXW W30 30 48
Unit / Packing
Dimension
+HLJKW mm 750/800 750/800 882/930
:LGWK mm 762/878 762/878 870/994
'HSWK mm 256/360 256/360 378/428
1HW*URVV:HLJKWV kg 50/56 55/61 68/79

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Heat Pump Water Heater
Service Manual
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Models GRS-C3.8/NbA-K GRS-C5.0/NbA-K
Nominal Capacity Heating
kW 3.8 5.0
%WXK 12966 17060
3RZHU&RQVXPSWLRQ Heating kW 1.02 1.35
3RZHU6XSSO\ 9a3Ka+]
Safeties
+LJK/RZSUHVVXUHVZLWFKFRPSUHVVRUWKHUPDO
SURWHFWLRQRYHUFXUUHQWSURWHFWLRQODFNRISKDVHDQWL
SKDVHSURWHFWLRQDQWLIUHH]LQJSURWHFWLRQ5D
Refrigerant
Type R134a
&KDUJH kg 0.7 0.95
Compressor
Type Rotary
NO. 1 1
Condenser
+HDW([FKDQJHU Tube-in-tube
Water In/Out
Pipe Diameter ,QFK 3/4 3/4
(YDSRUDWRU
+HDW([FKDQJHU )LQW\SHKHDWH[FKDQJHU
Fan Motor
3RZHU,QSXW W30 30
Unit / Packing
Dimension
+HLJKW mm 750/800 750/800
:LGWK mm 762/878 762/878
'HSWK mm 256/360 256/360
1HW*URVV:HLJKWV kg 55/61 60/66
Note: 1Ton = 12000Btu/h = 3.517kW
4.1.2 Water Tank
Water tank model SX150LC/B1-K SX200LC/B1-K SX250LC/B1-K SX300LC/B1-K SX350LC/B1-K SX400LC/B1-K
Capacity L 150 200 250 300 350 400
Outline dimension
(OD×H) mm ĭî ĭî ĭî ĭî ĭî ĭî
Package
(W×D×H) mm 1375×610×605 1620×630×625 1970×630×625 1645×710×705 1920×710×705 2150×710×705
1HWZHLJKW kg 42 55 66 69 77 84
*URVVZHLJKW kg 50 63 75 79 88 96
Dimension of
connecting pipe
EHWZHHQPDLQXQLW
DQGZDWHUWDQN
mm DN20 DN20 DN20 DN20 DN20 DN20
Connecting
GLPHQVLRQRIZDWHU
pipe terminal
mm DN15 DN15 DN15 DN15 DN15 DN15

6
Heat Pump Water Heater
Service Manual
QSPEVDU
Water tank model SXD150LC-K SXD200LC-K SXD250LC-K SXD300LC-K
Capacity L 150 200 250 300
Outline dimension (OD×H) mm ĭî ĭî ĭî ĭî
Package (W×D×H) mm 1375×610×605 1620×630×625 1970×630×625 1645×710×705
1HWZHLJKW kg 45 57 68 71
*URVVZHLJKW kg 52 66 77 81
Dimension of connecting pipe
EHWZHHQPDLQXQLWDQGZDWHUWDQN mm DN20 DN20 DN20 DN20
Connecting dimension of
ZDWHUSLSHWHUPLQDO mm DN15 DN15 DN15 DN15
Notes:
ķ
7HVWFRQGLWLRQVRIWKHDERYHGDWDRXWGRRUDPELHQWWHPSćDB/15ć:%ZDWHUWDQNLQLWLDOHQGLQJ
WHPSć/55ć
ĸ
,IWKHUHLVDQ\FKDQJHRISURGXFWVSHFL¿FDWLRQSOHDVHUHIHUWRWKHQDPHSODWH
4.2 Operation Range
Model Range of Outdoor Temperatureć( )
Heating -7~45ć
4.3 Operation Performance
'XULQJKHDWLQJWKHZDWHULVKHDWHGE\WKHXQLWDEVRUELQJKHDWHQHUJ\IURPRXWVLGHDQGWKHQUHOHDVLQJLW
WRWKHZDWHULQZDWHUWDQN+HDWLQJFDSDFLW\PD\EHUHGXFHGLIRXWGRRUWHPSHUDWXUHLVGHFUHDVHG7KHIROORZLQJ
FKDUWLVIRUUHIHUHQFH
GRS-C3.5/A1-K Water Yield Capacity Correction
300
250
200
150
100
0
:DWHU\LHOGYROXPH/K
Outdoor temperature(ć)
45ć
50ć
55ć
60ć
Water outlet temperature(ć)

7
Heat Pump Water Heater
Service Manual
QSPEVDU
GRS-C5.0/A1-K Water Yield Capacity Correction
500
400
300
200
100
0
:DWHU\LHOGYROXPH/K
45ć
50ć
55ć
60ć
Water outlet temperature(ć)
Outdoor temperature(ć)
GRS-C7.2/A1-K Water Yield Capacity Correction
45ć
50ć
55ć
60ć
Water outlet temperature(ć)
Outdoor temperature(ć)
500
400
300
200
100
0
:DWHU\LHOGYROXPH/K
GRS-C3.8/NbA-K Water Yield Capacity Correction
300
250
200
150
100
0
:DWHU\LHOGYROXPH/K
45ć
55ć
Water outlet temperature(ć)
Outdoor temperature(ć)

8
Heat Pump Water Heater
Service Manual
QSPEVDU
GRS-C5.0/NbA-K Water Yield Capacity Correction
Outdoor temperature(ć)
45ć
50ć
55ć
Water outlet temperature(ć)
500
400
300
200
100
0
:DWHU\LHOGYROXPH/K)

9
Heat Pump Water Heater
Service Manual
QSPEVDU
5 PIPING DIAGRAM
Name compressor ZD\YDOYH 6WRS9DOYH &KHFN9DOYH Capillary Filter
Electronic
([SDQVLRQ
9DOYH
Sign
Name Temperature
Sensor
Pressure
6ZLWFK
Heat
([FKDQJHU
ZLWK$[LDO
)ORZ)DQ
Heat
([FKDQJH
ZLWK&URVV
)ORZ%ORZHU
Heat
([FKDQJHU
ZLWK
Centrifugal
Fan
7KHUPDO
([SDQVLRQ
9DOYH
Gas Liquid
Separator
Sign
ZDWHUSXPS
ZDWHUWDQN
KHDWH[FKDQJHr
compressor
HYDSRUDWRU
liquid-gas separator
SUHVVXUHVZLWFK
H[SDQVLRQYDOYe
ZDWHULQOHt
7KHHQHUJ\VDYLQJZDWHUKHDWHUPDNHVXVHRIKHDWSXPS7KURXJKWKHUPDOFLUFXODWLRQLWDEVRUEVKHDW
IURPWKHVXUURXQGLQJVDLUVRXUFH9LDWKHFRPSUHVVRUWKHKHDWLVVHQWWRWKHFRQGHQVHUDQGUHOHDVHGWRWKH
ZDWHULQZDWHUWDQN7KHSULQFLSOHLVWKHVDPHDVWKDWRIKHDWSXPSDLUFRQGLWLRQHUH[FHSWWKDWWKHKHDWSXPS
DLUFRQGLWLRQHUDEVRUEVKHDWIURPWKHHQYLURQPHQWDQGVXSSOLHVKHDWWRWKHLQGRRUDLUZKLOHWKHHQHUJ\VDYLQJ
ZDWHUKHDWHUKHDWVWKHZDWHUZLWKWKLVKHDW,WV&23LVWLPHVKLJKHUWKDQWKDWRIWKHWUDGLWLRQDOHOHFWULFZDWHU
KHDWHU,WLVDQHI¿FLHQWHQHUJ\VDYLQJDQGHQYLURQPHQWDOIULHQGO\SURGXFW

10
Heat Pump Water Heater
Service Manual
CONTROL
DPOUSPM

11
Heat Pump Water Heater
Service Manual
DPOUSPM
CONTROL
1 OPERATION FLOWCHART
3RZHURn
&KHFNIDLOXUH
Timer on
7XUQRQWKHXQLWPDQXDOO\
Water temperature
DFKLHYHG
Display failure code
Fan startup
Compressor
No
yes
No
No
:DWHUWHPSHUDWXUHDFKLHYHG
No
$FKLHYHVWRSFRQGLWLRQ
Unit stops
yes
Unit stops
yes
Pump startup
yes
Unit keeps on running

12
Heat Pump Water Heater
Service Manual
DPOUSPM
2 MAIN LOGIC
2.1 Heating Mode
:KHQSUHVV21EXWWRQLIWKHWHPSHUDWXUHRIZDWHUWDQNPHHWVWKHKHDWLQJUHTXLUHPHQWVWKHRXWGRRUIDQ
ZLOOVWDUWUXQQLQJ7KHFRPSUHVVRUZLOOUXQDIWHUV
,IWKHWHPSHUDWXUHRIZDWHUWDQNLVDERYHWKHVHWWHPSHUDWXUHWKHXQLWZLOOVWRSDQGDOOORDGVZLOOWHUPLQDWH
7KHRXWGRRUIDQVZLOOVWRSDIWHUV
2.2 Defrosting Mode
&RQGLWLRQRIGHIURVWLQJ
,QKHDWLQJPRGHLIWKHDFFXPXODWLYHUXQQLQJWLPHRIFRPSUHVVRULVEH\RQGWKHVHWLQWHUYDOWLPHRI
GHIURVWLQJGHIDXOWPLQDQGWKHGHIURVWLQJWHPSHUDWXUHLVORZHUWKDQWKHVHWVWDUWLQJWHPSHUDWXUHGHIDXOW
-4ćWKHXQLWZLOOVWDUWGHIURVWLQJ,QWKDWFDVHWKHZD\YDOYHZLOOVKXWRIIDQGWKHRXWGRRUIDQZLOOVWRSDIWHU
2s.
&RQGLWLRQRIVWRSSLQJGHIURVWLQJ
,QGHIURVWLQJPRGHLIWKHFRQWLQXDOGHIURVWLQJWLPHLVEH\RQGWKHVHWFRQWLQXDOWLPHRIGHIURVWLQJGHIDXOW
8min), DQGWKHGHIURVWLQJWHPSHUDWXUHLVEH\RQGWKHVHWVWRSSLQJWHPSHUDWXUHWKHXQLWZLOOUHVWDUWKHDWLQJ,Q
WKDWFDVHWKHZD\YDOYHZLOOEHRSHQDQGWKHRXWGRRUIDQZLOOUXQ

13
Heat Pump Water Heater
Service Manual
DPOUSPM
3 WIRED REMOTE CONTROLLER
3.1 Dimension
D
C
B
A
8QLWPP
ABCD
900 900 240 600
3.2 Function
2SHUDWLRQ9LHZ
Functions and Wired Controller
NO. Function description NO. Function description
1&KHFNEXWWRQ 5Prior button
2Timer button 6Rapid button
3Increase button for temp and clock 7Decrease button for temp and clock
4Mode button 8On/off button

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Heat Pump Water Heater
Service Manual
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NO. Function description
1'LVSOD\RIUDSLGKRWZDWHUKRWZDWHUSULRUDLUFRQGLWLRQLQJSULRU
2 Display of system time, timer, preset timer and running parameters
3,FRQVGLVSOD\RIKHDWLQJXSDQGVWDQGE\IRUNHHSLQJWKHVDPHWHPSHUDWXUH
4'LVSOD\RIKRWZDWHUVDYHSUHVHWDQGQLJKWZRUNPRGH
5 Display of lock
6 Display of defrosting
7'LVSOD\RI(KHDWHURQ
8'LVSOD\RIDFWXDOZDWHUWHPSHUDWXUHVHWWLQJZDWHUWHPSHUDWXUHHUURUFRGHDQGUXQQLQJSDUDPHWHUV
9'LVSOD\RIDQWLIUHH]LQJIXQFWLRQ
10 'LVSOD\RIÀRRUUDGLDWRURQWKLVXQLWKDVQ¶WWKLVIXQFWLRQ
'LVSOD\9LHZ
Instruction to Functions and Operation of Wired Controller
Notice:
If there is not any button operation for 15s, the wired controller will be half light. In that case, the
wired controller can be normally operated only by pressing any button to make it light.
1). On/Off
3UHVV2Q2IIEXWWRQWRWXUQRQWKHZDWHUKHDWHU5HSUHVVLWWRWXUQRIIWKHZDWHUKHDWHU
1RWH
$IWHUHQHUJL]DWLRQDQGXQGHUQRUPDOFRPPXQLFDWLRQWKH/&'ZLOOGLVSOD\ZDWHUWHPSHUDWXUHDQGWLPHERWK
XQGHURQDQGRIIVWDWHVRIWKHXQLW,WVXJJHVWVRIIVWDWHLIWKH/&'GRHVQRWGLVSOD\UXQQLQJPRGH
2). Mode Setting
8QGHURQVWDWHRIXQLWSUHVV0RGHEXWWRQWRVZLWFKWKHUXQQLQJPRGHVDVWKHIROORZLQJVHTXHQFH
+RWZDWHU 6DYePreset 1LJKWZRUk
$VVKRZQLQWKHULJKW¿JXUHLWLVLQ+RWZDWHUPRGHZLWKUDSLGEXWWRQSUHVVHG
Hot water mode:DFFRUGLQJWRSUHVHQWZDWHUWHPSHUDWXUHZDWHUKHDWHULPPHGLDWHO\VWDUWVXSRUVWRSV
KHDWLQJ
Save mode: Upper limit of setting temperature is 50ć2WKHUIXQFWLRQVDUHWKHVDPHDVWKH\DUHLQKRW
ZDWHUPRGH
Preset mode: 3UHVHWWLPHRIKRWZDWHU7KHZDWHUKHDWHUZLOOGHFLGHDGYDQFHVWDUWXSWLPHRIXQLW
DFFRUGLQJWRWKHDPELHQWWHPSHUDWXUHDQGWKHQGHFLGHVWDUWXSDQGVWRSRIFRPSUHVVRUDFFRUGLQJWRWKH
GLIIHUHQFHEHWZHHQDFWXDOZDWHUWHPSHUDWXUHDQGVHWWLQJZDWHUWHPSHUDWXUH,WZLOOVWRSKDIWHUSUHVHWWLPH

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Service Manual
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2QFHVHWLWZLOOUXQFLUFXODUO\HYHU\GD\
Nightwork mode:)L[SUHVHWWLPHRIKRWZDWHUWR:00 to 06:VRWKDWWKHZDWHUKHDWHUVWDUWVXSGXULQJ
WKLVSHULRGDQGGHFLGHVVWDUWXSDQGVWRSRIFRPSUHVVRUDFFRUGLQJWRWKHGLIIHUHQFHEHWZHHQDFWXDOZDWHU
WHPSHUDWXUHDQGVHWWLQJZDWHUWHPSHUDWXUH2QFHVHWLWZLOOUXQFLUFXODUO\HYHU\GD\
3). Temperature Setting
3UHVVŸźWRLQFUHDVHRUGHFUHDVHVHWWLQJZDWHUWHPSHUDWXUH:KHQORQJSUHVVLWWKHWHPSHUDWXUHZLOO
increase or decrease by 1ćper 0.5 second.
:DWHUWHPSHUDWXUHVHWWLQJUDQJHć 58ć(50ćXQGHUVDYHPRGH
$VVKRZQLQWKHULJKW¿JXUH
4). Timer Setting
Timer On/Off Setting
,Q+RWZDWHURU6DYHPRGHSUHVV7LPHUWRVHWWLPHURQRII
7LPHUVHWWLQJ3UHVV³7LPHU´EXWWRQDQG/&'ZLOOGLVSOD\7LPHU;;;;RQXQGHURQVWDWHRIXQLW7LPHU
;;;;RIILVGLVSOD\HGZLWKQXPEHUVRIKRXUÀDVKLQJ,QWKDWFDVHSUHVVŸźWRDGMXVWWKHKRXUV5HSUHVV
7LPHUEXWWRQDQGQXPEHUVRIPLQXWHZLOOÀDVK,QWKLVFDVHSUHVVŸźWRDGMXVWPLQXWH$WODVWUHSUHVV7LPHU
to complete timer setting.
&DQFHO7LPHU$IWHUWLPHUVHWWLQJSUHVV7LPHU,QWKDWFDVH/&'ZRQ¶WGLVSOD\WLPHUDQGWLPHULVFDQFHOOHG
7LPHUUDQJH (YHU\SUHVVRIŸRUźZLOOLQFUHDVHRUGHFUHDVHWKHWLPHRIWLPHUE\KRU
PLQ/RQJSUHVVHLWKHURIWKHPDQGWKHWLPHRIWLPHUZLOODXWRPDWLFDOO\LQFUHDVHRUGHFUHDVHE\KRUPLQSHU
0.5 second.
Preset Time Setting
,QSUHVHWPRGHWKHSUHVHQWSUHVHWWLPHZLOOVWDUWDXWRPDWLFDOO\3UHVV7LPHUWRSUHVHWWLPH
3UHVHWWLPHVHWWLQJ3UHVV7LPHUEXWWRQDQGWKH/&'GLVSOD\V³3UHVHW[[[[´DQGQXPEHUVRIKRXUZLOOÀDVK
,QWKLVFDVHSUHVVŸźWRDGMXVWKRXU5HSUHVV7LPHUEXWWRQDQGQXPEHUVRIPLQXWHZLOOÀDVK,QWKLVFDVH
SUHVVŸźWRDGMXVWPLQXWH$WODVWUHSUHVV7LPHUWRFRPSOHWHSUHVHWWLPHVHWWLQJ

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Heat Pump Water Heater
Service Manual
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3UHVHWWLPHUDQJH

(YHU\SUHVVRIŸRUźZLOOLQFUHDVHRUGHFUHDVHSUHVHWWLPHE\KRU
PLQ/RQJSUHVVHLWKHURIWKHPDQGWKHQSUHVHWWLPHZLOODXWRPDWLFDOO\LQFUHDVHRUGHFUHDVHE\KRUPLQSHU
0.5 second.
3UHVHWPRGHLVFLUFXODUO\VWDUWXS:DWHUKHDWHUZLOOKHDWZDWHUDFFRUGLQJWRSUHVHWWLPHHYHU\GD\DQG
DGYDQFHWLPHFRUUHVSRQGLQJZLWKDPELHQWWHPSHUDWXUHDQGWKHQVWRSKHDWLQJKDIWHUSUHVHWWLPH
System Time Setting
3UHVVFKHFNEXWWRQDQGGHIDXOWHGFKHFNFRGHZLOOEHGLVSOD\HGLQZDWHUWHPSHUDWXUHGLVSOD\LQJDUHD
8QGHUFKHFNVWDWHDQGZKHQFKHFNFRGHVDUHSUHVV7LPHUEXWWRQWRVHWV\VWHPWLPH
,QWKLVFDVHWKH/&'GLVSOD\V³[[[[´DQGQXPEHUVRIKRXUZLOOÀDVK3UHVVŸźWRDGMXVWKRX5HSUHVV
WLPHUEXWWRQDQGQXPEHUVRIPLQZLOOÀDVK,QWKLVFDVHSUHVVŸźWRDGMXVWPLQ,IV\VWHPWLPHLVQRWQHHGHG
SUHVVFKHFNEXWWRQWRTXLWRUOHWLWTXLWDXWRPDWLFDOO\DIWHUVZLWKRXWDQ\RSHUDWLRQ5HSUHVVWLPHUEXWWRQWR
FRQ¿UPWLPHVHWWLQJDQGWKHWLPHZRQ¶WÀDVKDQ\PRUH
5DQJHV\VWHPWLPH (YHU\SUHVVRIŸRUźZLOOLQFUHDVHRUGHFUHDVHVHWWLQJWLPHE\KRU
PLQ/RQJSUHVVHLWKHURIWKHPDQGWKHQV\VWHPWLPHZLOODXWRPDWLFDOO\LQFUHDVHRUGHFUHDVHE\KRUPLQ
SHUVHFRQGDVVKRZQLQWKHULJKW¿JXUH
5). Special Functions
Lock Function
3UHVVŸDQGźDWWKHVDPHWLPHIRUVWKHZLUHGFRQWUROOHUZLOOGLVSOD\ORFNLFRQ,QWKDWFDVHEXWWRQVRI
ZLUHGFRQWUROOHUDUHLQYDOLGDQGORFNLFRQZLOOÀDVKLIRSHUDWLQJDQ\EXWWRQ5HSUHVVŸDQGźDWWKHVDPHWLPH
IRUVDQGWKHORFNLFRQZLOOGLVDSSHDUDQGIXQFWLRQVRIZLUHGFRQWUROOHUZLOOUHVXPH
,IPDOIXQFWLRQRFFXUVORFNIXQFWLRQZLOOEHLQYDOLGIRUDZKLOH2QFHLWLVUHOHDVHGORFNVWDWHZLOOUHVXPH
/RFNVWDWHZLOOEHPHPRUL]HGXSRQSRZHUIDLOXUH

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Heat Pump Water Heater
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Cleaning Function
'XULQJVWRSRIXQLWZLWKRXWPDOIXQFWLRQSUHVV0RGHDQGźDWWKHVDPHWLPHIRUVDQGWKHZLUHG
FRQWUROOHUZLOOHQWHULQWRFOHDQLQJVWDWH/&'ZLOOFLUFXODUO\GLVSOD\+RW:DWHU6DYH3UHVHWDQG1LJKWZRUNUHIHU
WRWKHULJKW¿JXUH5HSUHVV0RGHDQGźDWWKHVDPHWLPHIRUVWRTXLW
&OHDQLQJIXQFWLRQFDQPDLQWDLQPD[PLQ$IWHUVWDUWXS2Q2IIEXWWRQLVVKLHOGHG2QFHPDOIXQFWLRQ
RFFXUVFOHDQLQJIXQFWLRQZLOODXWRPDWLFDOO\TXLW
Parameters Check
7KLVIXQFWLRQLVXVXDOO\IRUGHEXJJLQJSHUVRQQHO
:KHQSUHVVFKHFNEXWWRQLQWRFKHFNLQJVWDWHFKHFNLQJFRGHÀDVKHVDQGFRUUHVSRQGLQJSDUDPHWHUVDUH
GLVSOD\HGLQFORFNGLVSOD\LQJDUHD3UHVVŸDQGźWRVZLWFKDPRQJFRGH
6). Malfunction Display
,IPDOIXQFWLRQVRFFXUGXULQJRSHUDWLRQRIV\VWHPWHPSHUDWXUHGLVSOD\LQJDUHDZLOOGLVSOD\HUURUFRGHV
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outdoor unit is off.
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18
Heat Pump Water Heater
Service Manual
DPOUSPM
3.3 Installation
Installation Location of Wired Controller
1). 1HYHULQVWDOOZLUHGFRQWUROOHUDWZHWSODFHRUXQGHUVXQOLJKWGLUHFWO\
2). 1HYHULQVWDOOWKHXQLWDQGZLUHGFRQWUROOHUDWWKHSODFHZKHUHWKHUHLVHOHFWURPDJQHWLFLQWHUIHUHQFH
3). 0DNHVXUHFRPPXQLFDWLRQOLQHLVFRQQHFWHGLQWRFRUUHFWSRUWWRDYRLGFRPPXQLFDWLRQPDOIXQFWLRQ
Installation of Wired Controller and Project Debugging
No. 1 2 3 4 5
Description 6RFNHW¶VEDVHER[
LQVWDOOHGLQWKHZDOO Soleplate of controller 6FUHZ0; Front panel of controller 6FUHZ67;
Pay attention to the following items during installation of wired controller:
1). &XWRIISRZHUVXSSO\RIKHDY\FXUUHQWZLUHHPEHGGHGLQPRXQWLQJKROHLQWKHZDOOEHIRUHLQVWDOODWLRQ,W
LVSURKLELWHGWRSHUIRUPWKHZKROHSURFHGXUHZLWKHOHFWULFLW\
2). 3XOORXWFRUHWZLVWHGSDLUOLQHLQPRXQWLQJKROHDQGWKHQPDNHLWWKURXJKWKHUHFWDQJOHKROHDWWKH
EDFNRIFRQWUROOHU¶VVROHSODWH
3). -RLQWWKHFRQWUROOHU¶VVROHSODWHRQZDOOIDFHDQGWKHQ¿[LWLQPRXQWLQJKROHZLWKVFUHZV0;
4). $WODVWLQVHUWWKHFRUHWZLVWHGSDLUWKURXJKUHFWDQJOHKROHLQWRFRQWUROOHU¶VVORWDQGEXFNOHWKHIURQW
SDQHODQGVROHSODWHRIFRQWUROOHUWRJHWKHU
Caution:
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a. 7RHQVXUHQRUPDOFRPPXQLFDWLRQRIXQLWVLJQDOOLQHDQGZLULQJFRPPXQLFDWLRQRIZLUHGFRQWUROOHU
VKRXOGVHSDUDWHIURPSRZHUFRUGDQGLQGRRURXWGRRUFRQQHFWLRQOLQHV7KHGLVWDQFHEHWZHHQWKHP
VKRXOGEHNHSWFPLQPLQ
b. ,IWKHXQLWLVLQVWDOOHGDWWKHSODFHZKHUHWKHUHLVLQWHUIHUHQFHRIHOHFWURPDJQHWLVPVLJQDOOLQHDQG
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