Vkin VRHA-18AN1DC/INB, VRHA-24AN1DC/INB, VRHA-36AN1DC/INB, VRHA-60AN1DC/INB, VRHA-86AN1DC/INB Service Manual
...
- 1 -
Heat Pump
MODELS
URH/CA-09WDC
URH/CA-12WDC
URH/CA-18WDC
URH/CA-24WDC
URH/CA-36WDC
Table of Contents
ii
SAFETY CONSIDERATIONS
..........................................................................................................
iv
Part1
Specifications
............................................................................................................................................
1
1. Specifications........................................................................................................................................2
1.1 Parameter................................................................................................................................. 2
1.2 Nameplate.................................................................................................................................4
Part2
Exploded views and material code
.................................................................................................
8
1. Exploded views and material code....................................................................................................9
1.1 Exploded View (indoor unit)VRHA-18/24/36/48AN1DC/INB............................................ 9
1.2 Material Code(indoor unit)VRHA-18/24/36/48AN1DC/INB.............................................10
1.3 Exploded View (indoor unit)VRHA-18/24/36AN1DC/INB................................................ 11
1.4 Material Code(indoor unit)VRHA-18/24/36AN1DC/INB.................................................. 12
1.5 Exploded View (indoor unit)VRHA-48/60AN1DC/INB..................................................... 13
1.6 Material Code(indoor unit)VRHA-48AN1DC/INB............................................................. 14
Part 3
Printed Circuit Board Connector Wiring Diagram
................................................................
15
1. Indoor unit........................................................................................................................................... 16
1.1 VRHA-18/24/36/48AN1DC/INB........................................................................................... 16
2. Outdoor unit........................................................................................................................................ 19
2.1 VRHA-18AN1DC/INB............................................................................................................19
2.2 VRHA-24/36AN1DC/INB...................................................................................................... 25
2.3 VRHA-48AN1DC/INB............................................................................................................31
Part 4
Common Wearing Parts
......................................................................................................................
40
1. Common wearing parts (indoor unit).............................................................................................. 41
1.1 Sensor..................................................................................................................................... 41
1.2 Linear Transformer................................................................................................................ 42
1.3 Pump....................................................................................................................................... 43
1.4 Wired remote control.............................................................................................................45
2. Common wearing parts (outdoor unit)............................................................................................46
2.1 Sensor..................................................................................................................................... 46
2.2 Fan Motor................................................................................................................................ 47
2.3 Filter Capacitor....................................................................................................................... 50
2.4 Fan motor capacitor.............................................................................................................. 51
Table of Contents
iii
Part 5
Comparison Table...................................................................................................................................................... 53
1. Wired Controller................................................................................................................................. 54
1.1 Function...................................................................................................................................54
1.2 Operating Instructions........................................................................................................... 55
1.3 Error Codes and Analysis..................................................................................................... 57
2.Pressure Refrigerant Loop Temperature Control Table................................................................ 58
2.1 R410 Table.............................................................................................................................. 58
3. Sensors Resistance Table................................................................................................................ 59
3.1 Compressor Exhaust Temperature Sensor Resistance.................................................. 59
3.2 Ambient/Indoor/Outdoor Pipe Sensor Resistance............................................................60
Part 6
Appendix
.....................................................................................................................................................
61
1. Piping Diagrams.................................................................................................................................62
1.1 Indoor Units............................................................................................................................ 62
1.2 Outdoor Units......................................................................................................................... 63
2. Wiring Diagrams................................................................................................................................ 64
2.1 Indoor Units............................................................................................................................ 64
2.2 Outdoor Units..........................................................................................................................65
Safety Considerations
iv
1. SAFETY CONSIDERATIONS
Read these SAFETY CONSIDERATIONS carefully
before performing any repair work. Comply with these
safety symbols without fail.
Meanings of DANGER, WARNING, CAUTION, and NOTE
Symbols:
DANGER ..............Indicates an imminently
hazardous situation which, if
not avoided, will result in death
or serious injury.
WARNING ............Indicates a potentially
hazardous situation which, if
not avoided, could result in
death or serious injury.
CAUTION .............Indicates a potentially
hazardous situation which, if
not avoided, may result in
minor or moderate injury. It
may also be used to alert
against unsafe practices.
NOTE ...................Indicates situations that may
result in equipment or
property-damage accidents
only.
1.1 Safety Considerations for Repair
DANGER
•
If refrigerant gas leaks during repair or service,
ventilate the area immediately. Refrigerant gas may
produce toxic gas if it comes into contact with
flames. Refrigerant gas is heavier than air and
replaces oxygen. In the event of an accident, a
massive leak could lead to oxygen depletion,
especially in basements, and an asphyxiation
hazard could occur leading to serious injury or
death.
•
Do not start or stop the air conditioner operation
by plugging or unplugging the power cable plug if
a plug is used. Plugging or unplugging the power
cable plug to operate the equipment may cause an
electrical shock or fire.
•
Use parts listed in the service parts list and
appropriate tools to conduct repair work. The use
of inappropriate parts or tools may cause an
electrical shock or fire.
•
Disconnect power before disassembling the
equipment for repairs. Working on the equipment
that is connected to the power supply may cause
an electric shock. If it is necessary to supply
power to the equipment to conduct repairs or to
inspect the circuits, do not touch any electrically
charged sections of the equipment.
•
The step-up capacitor supplies high-voltage
electricity to the electrical components of the
outdoor unit. Discharge the capacitor completely
before conducting repair work. A charged
capacitor may cause an electrical shock.
•
If refrigerant gas is discharged during repair work,
do not touch the discharged refrigerant gas. The
refrigerant gas may cause frostbite.
•
Use only pipes, flare nuts, tools, and other
materials designed specifically for R410A
refrigerant systems. Never use tools or materials
designed for R22 refrigerant systems on an R410A
refrigerant system. Doing so can cause a serious
accident or an equipment failure.
•
Check to see if the parts and wires are mounted
and connected properly, and if the connections at
the soldered or crimped terminals are secure.
Improper installation and connections may cause
excessive heat generation, fire, or electrical shock.
WARNING
•
Prior to disconnecting the suction or discharge
pipe from the compressor at the welded
section,pump-down the refrigerant gas completely
in a well-ventilated place first. If there is refrigerant
gas or oil remaining inside the compressor, the
refrigerant gas or oil can discharge when the pipe
is being disconnected and it may cause an injury.
•
Wear a safety helmet, gloves, and a safety belt
when working at an elevated height of more than
6.5 ft (2 m). Insufficient safety measures may
cause a fall resulting in injury.
•
Do not mix air or gas other than the specified
refrigerant R410A to the refrigerant system. If air
enters the refrigerant systems, it can cause an
excessive high pressure resulting in equipment
damage and injury.
•
When relocating the equipment, check if the new
installation site has sufficient strength to
withstand the weight of the equipment. If the
installation site does not have sufficient strength
and the equipment is not properly secured, the
equipment may fall and cause injury.
•
Securely fasten the outside unit terminal cover
(panel). If the terminal cover/panel is not fastened
properly, dust or water may enter the outside unit
causing fire or electric shock.
•
When relocating the system, keep the refrigerant
circuit free from substances other than the
specified refrigerant (R-410A) such as air. Any
presence of air or other foreign substance in the
refrigerant circuit can cause an abnormal pressure
rise or rupture, resulting in injury.
•
If refrigerant gas leaks, locate the leaking point
and repair it before charging refrigerant. After
charging refrigerant, check for refrigerant leaks. If
the leaking point cannot be located and the repair
work must be stopped, perform a pump-down and
close the service valve to prevent the refrigerant
gas from leaking into the room. The refrigerant gas
itself is harmless, but it may generate toxic gases
if it comes into contact with flames.
CAUTION
•
Do not repair the electrical components with wet
hands. Working on the equipment with wet hands
may cause an electrical shock.
•
Do not clean the air conditioner by splashing water
on it. Washing the unit with water may cause an
electrical shock.
Safety Considerations
v
•
Ground the unit when repairing equipment in a
humid or wet place to avoid electrical shocks.
•
Turn off the power when cleaning the equipment to
prevent internal fans that rotate at high speed from
starting suddenly as they can cause injury.
•
Let the refrigerant lines cool down before
performing any repair work. Working on the unit
when the refrigerant lines are hot may cause
burns.
•
All welding and cutting operations must be done in
a well-ventilated place to prevent the accumulation
of toxic fumes or possibly oxygen deficiency to
occur.
•
Check the grounding and repair it if the equipment
is not properly grounded. Improper grounding may
cause an electrical shock.
•
Measure the insulation resistance after the repair.
The resistance must be 1M or higher. Faulty
insulation may cause an electrical shock.
NOTE
•
Check the drainage of the indoor unit after
finishing repair work. Faulty drainage may cause
water to enter the room resulting in wet floors and
furniture.
•
Do not tilt the unit when removing it. The water
inside the unit may spill resulting in wet floors and
furniture.
•
Dismantling of the unit, disposal of the refrigerant,
oil, and additional parts, should be done in
accordance with the relevant local, state, and
national regulations.
1.2 Safety Considerations for Users
DANGER
•
Never attempt to modify the equipment. Doing so
can cause electrical shock, excessive heat
generation, or fire.
•
If the power cable and lead wires have scratches
or have become deteriorated, have them replaced.
Damaged cable and wires may cause an electrical
shock or fire.
•
Do not use a joined power cable or an extension
cord, or share the same power outlet with other
electrical appliances as it may cause an electrical
shock or fire.
•
Use an exclusive power circuit for the equipment.
Insufficient circuit amperage capacity may cause
an electrical shock or fire.
WARNING
•
Do not damage or modify the power cable.
Damaged or modified power cables may cause an
electrical shock or fire. Placing heavy items on the
power cable or pulling the power cable may
damage the cable.
•
Check the unit foundation for damage on a
continual basis, especially if it has been in use for
a long time. If left in a damaged condition, the unit
may fall and cause injury. If the installation
platform or frame has corroded, have it replaced. A
corroded platform or frame may cause the unit to
fall resulting in injury.
•
If the unit has a power cable plug and it is dirty,
clean the plug before securely inserting it into a
power outlet. If the plug has a loose connection,
tighten it or it may cause electrical shock or fire.
CAUTION
•
After replacing the battery in the remote controller,
dispose of the old battery to prevent children from
swallowing it. If a child swallows the battery, see a
doctor immediately.
•
Never remove the fan guard of the unit. A fan
rotating at high speed without the fan guard is very
dangerous.
•
Before cleaning the unit, stop the operation of the
unit by turning the power off or by pulling the
power cable plug out from its receptacle.
Otherwise an electrical shock or injury may result.
•
Do not wipe the controller operation panel with
benzene, thinner, chemical dust cloth, etc. The
panel may get discolored or the coating can peel
off. If it is extremely dirty, soak a cloth in a
water-diluted neutral detergent, squeeze it well,
and wipe the panel clean. Then wipe it with another
dry cloth.
Specifications
1
Part1
Specifications
1. Specifications
........................................................................................................................................
2
1.1 Parameter
.................................................................................................................................
2
1.2 Nameplate
.................................................................................................................................
4
Specifications
2
1.Specifications
1.1 Parameter
Model
VRHA-18AN1DC/INB
VRHA-24AN1DC/INB
VRHA-36AN1DC/INB
Power supply
Ph-V-Hz
1，230V,60HZ
Cooling
Capacity
BTU
15690(7840-19100)
21830(11600-26610)
28310(16030-31730)
InputW1620(600-2250)
2243(800-2550)
2875(1250-3650)
Rated current
A
7.0(2,65~10.05)
9.78(3.52~11.68)
12.58(5.45-15.98)
EER
BTU/W
9.79
9.78
9.82
Heating
Capacity
BTU
17050(8180-21150)
23540(129600-29340)
30707(17050-37530)
InputW1219(600-2080)
1703(800-2400)
2267(1250-3400)
Heating water
GAL/h
253444
Rated current
A
5.31(2.65~10.05)
7.44(3.52-11.01)
9.88(5.45-14.88)
COP
BTU/W
13.98
13.81
13.54
First hour water production
GAL/h
7075100
water pump
Input (L/M/H)W55/70/100
55/70/100
135/190/245
Rated current
A
0.25/0.35/0.45
0.25/0.35/0.45
0.60/0.85/1.10
Tank unit
Dimension (D*H)
Inch
φ21.8X58.7
φ23.4X60.8
φ27.3X61.6
Packing (W*H*D)
Inch
24.6X24.6X61.2
26.1X26.1X63.6
30.4X30.4X66.3
Net/Gross weight
Ibs
96.8/105.8
105.8/114.8
131.6/140.4
Indoor unit
Dimension (W*H*D)
Inch
29×18.5×9.2
29×18.5×9.2
29×18.5×9.2
Packing (W*H*D)
Inch
31×22.8×11.3
31×22.8×11.3
31×22.8×11.3
Net/Gross weight
Ibs
67.5/69.7
72.0/74.5
76.5/78.7
Outdoor unit
Dimension (W*H*D)
Inch
33X23.7X11.1
32.3X27.7X12.1
34.3X31.2X14
Packing (W*H*D)
Inch
38.2X25X15.6
37.8X29.1X16
40X32.8X17.7
Net/Gross weight
Ibs
90/94.4
104.6/108.8
128.2/132.5
Noise level
Indoor
dB(A)
30-40
30-40
34-46
Outdoor
dB(A)
525455
Outdoor air flow
cfm
1058
1352
1647
Design pressure
Psi
600
600
600
MAX.Pipe Length
Ft
32.81
49.21
49.21
MAX.Height Difference
Ft
26.25
32.81
32.81
Pipe Size Liquid/Gas
Inch
1/4 - 1/2
3/4 - 5/8
3/4 - 5/8
Refrigerant
R410a
R410a
R410a
Cooling water range
℉
42-88
42-88
42-88
Heating water range
℉
68 - 140
68 - 140
68 - 140
Ambient temp
℉
-13 - 116
-13 - 116
-13 - 116
Water tank volume
GAL
6680106
Rated cooling test conditions：Outdoor dry bulb temperature/Wet bulb temperature95.0℉\75.0℉Influent temperature：54.0℉Effluent temperature
：
Rated heating test conditions：Outdoor dry bulb temperature/Wet bulb temperature47.0℉\43.0℉ Influent temperature：86.0℉ Effluent temperature：
The difference between the fixed-frequency and frequency of:
：
Fixed-frequency machine: the outdoor unit operating ambient temperature range is relatively narrow (19-109℉) and can not adjust the size of the
cooling / heating capacity of the indoor temperature changes, the machine open between stops, the indoor temperature fluctuations, feels suddenly cold
Frequency Machine: the outdoor unit operating ambient temperature range is wide (-13-126 ℉) and can change depending on the temperature and
adjust the size of the room cooling / heating capacity, the indoor temperature a smooth transition, the temperature fluctuation is small, automatic climate
control, power consumption energy-saving effect is remarkable.
Specifications
3
Model
VRHA-48AN1DC/INB
VRHA-60AN1DC/INB
VRHA-86AN1DC/INB
Power supply
Ph-V-Hz
1，230V,60HZ
3,380~415V,60HZ
3,380~415V,60HZ
Cooling
Capacity
BTU
37180(23880-45720)
51860(27970-54590)
85290(45030-89050)
InputW3818(1650-4950)
5352(2100-5900)
8834(4380-10850)
Rated current
A
16.98(7.19-21.89)
23.32(9.18-25.88)
13.43(6.66-15.98)
EER
BTU/W
9.75
9.68
9.62
Heating
Capacity
BTU
40940(26610-49130)
56970(30020-59700)
88020(47080-99620)
InputW3037(1650-4650)
4417(2100-5700)
7411(4380-10100)
Heating water
GAL/h5578
120
Rated current
A
13.2(7.19-20.84)
19.28(9.18-24.98)
11.26(6.66-15.35)
COP
BTU/W
13.47
12.89
11.87
First hour water production
GAL/h
150
205
315
water pump
Input (L/M/H)
W
135/190/245
135/190/245
245/308/380
Rated current
A
0.60/0.85/1.10
0.60/0.85/1.10
1.10/1.34/1.66
Tank unit
Dimension (D*H)
Inch
φ29.6X71.7
φ33.5X79.6
φ33.5X83.1
Packing (W*H*D)
Inch
33.2X33.2X75.7
Net/Gross weight
Ibs
145.6/155.3
176.6/180
208.1/215.6
Indoor unit
Dimension (W*H*D)
Inch
29×18.5×9.2
29×18.5×9.2
29×18.5×9.2
Packing (W*H*D)
Inch
31×22.8×11.3
31×22.8×11.3
31×22.8×11.3
Net/Gross weight
Ibs
81.0/83.2
90.0/92.2
108.0/112.2
Outdoor unit
Dimension (W*H*D)
Inch
49.1X32.4X12.1
49.5X36.3X15.2
56.5X23.8X54.6
Packing (W*H*D)
Inch
49.5X37.8X16
50X41.7X19.1
61.6X25X58.5
Net/Gross weight
Ibs
211.5/231.7
229.5/249.7
409.0/434.2
Noise level
Indoor
dB(A)
34-46
34-46
38-52
Outdoor
dB(A)
586064
Outdoor air flow
cfm
2117
3294
4823
Design pressure
Psi
600
600
600
MAX.Pipe Length
Ft
65.62
82.02
98.43
MAX.Height Difference
Ft
49.21
49.21
82.02
Pipe Size Liquid/Gas
Inch
1/2 - 3/4
1/2 - 3/4
1/2 - 7/8
Refrigerant
R410a
R410a
R410a
Cooling water range
℉
42-88
42-88
42-88
Heating water range
℉
68 - 140
68 - 140
68 - 140
Ambient temp
℉
-13 - 116
-13 - 116
-13 - 116
Water tank volume
GAL
160
212
333
Rated cooling test conditions：Outdoor dry bulb temperature/Wet bulb temperature95.0℉\75.0℉Influent temperature：54.0℉Effluent temperature
：
Rated heating test conditions：Outdoor dry bulb temperature/Wet bulb temperature47.0℉\43.0℉ Influent temperature：86.0℉ Effluent temperature：
The difference between the fixed-frequency and frequency of:
：
Fixed-frequency machine: the outdoor unit operating ambient temperature range is relatively narrow (19-109℉) and can not adjust the size of the
cooling / heating capacity of the indoor temperature changes, the machine open between stops, the indoor temperature fluctuations, feels suddenly cold
suddenly hot.
Frequency Machine: the outdoor unit operating ambient temperature range is wide (-13-126 ℉) and can change depending on the temperature and
adjust the size of the room cooling / heating capacity, the indoor temperature a smooth transition, the temperature fluctuation is small, automatic climate
control, power consumption energy-saving effect is remarkable.
Specifications
4
1.2 Nameplate
VRHA-18AN1DC/INB
Specifications
5
VRHA-24AN1DC/INB
Specifications
6
VRHA-36AN1DC/INB
Specifications
7
VRHA-48AN1DC/INB
Exploded Views And Material Code
8
Part2
Exploded views and material
code
1. Exploded views and material code
....................................................................................................
9
1.1 Exploded View (indoor unit)VRHA-18/24/36/48AN1DC/INB
............................................
9
1.2 Material Code(indoor unit)VRHA-18/24/36/48AN1DC/INB
.............................................
10
1.3 Exploded View (indoor unit)VRHA-18/24/36AN1DC/INB
................................................
11
1.4 Material Code(indoor unit)VRHA-18/24/36AN1DC/INB
..................................................
12
1.5 Exploded View (indoor unit)VRHA-48/60AN1DC/INB
.....................................................
13
1.6 Material Code(indoor unit)VRHA-48AN1DC/INB
.............................................................
14
Exploded Views And Material Code
9
1. Exploded views and material code
1.1 Exploded View (indoor unit)VRHA-18/24/36/48AN1DC/INB
Exploded Views And Material Code
10
1.2 Material Code(indoor unit)VRHA-18/24/36/48AN1DC/INB
NO.
NAME
Q'TY
1
Exhaust Pipe
1
2
Inlet pipe
1
3
Outlet pipe
1
4
Electrical box
1
5
Main Board
1
6
Terminal
1
7
Control panel
1
8
Clasp hands
2
9
Cable Glands
3
10
Gas valve
1
11
Liquid valve
1
12
Outlet water connection
1
13
Inlet Pipe connection
1
14
Nylon goblet
4
15
Water Pump
1
16
Plate in bracket
1
17
Panel
1
18
Plate heat exchanger
1
19
Box tank
1
20
Electrical cover
1
21
Fixing piece
1
22
Press clip
1
23
Locks
1
24
Linear transformer
1
Exploded Views And Material Code
11
1.3 Exploded View (indoor unit)VRHA-18/24/36AN1DC/INB
Exploded Views And Material Code
12
1.4 Material Code(indoor unit)VRHA-18/24/36AN1DC/INB
NO.
NAME
Q'TY
VRHA-18AN1DC/INB
VRHA-24AN1DC/INB
VRHA-36AN1DC/INB
1
Top panel
1
13.A.008-13008002
13.A.008-13008003
13.A.008-13008004
2
Back grill
1
13.A.009-13009002
13.A.009-13009003
13.A.009-13009004
3
Axial fan
1
16.B.001-16001011
16.B.001-16001012
16.B.001-16001013
4
Condenser
1
19.B.001-19001010
19.B.001-19001014
19.B.001-19001017
5
Handle
1
16.A.005-16005001
16.A.005-16005009
16.A.005-16005009
6
Front grill
1
16.A.005-16005006
16.A.005-16005048
16.A.005-16005008
7
Front panel
1
13.A.007-13007003
13.A.007-13007004
13.A.007-13007005
8
Bottom plate
1
13.A.001-13001013
13.A.001-13001018
13.A.001-13001022
9
Compressor Capacitor
1
10
Compressor
1
13.A.003-13003010
13.A.003-13003015
13.A.003-13003020
11
Reactance
1
27.J.002-27002002
27.J.003-27003001
27.J.003-27003001
12
Motor bracket
1
16.F.008-16008002
16.F.008-16008007
16.F.008-16008004
13
Outdoor motor
1
18.A.001-18001003
18.A.001-18001014
18.A.001-18001014
14
Outdoor fan
1
24.D.001-24001006
24.D.001-24001008
24.D.001-24001010
15
Four-way valve
1
12.C.006-12006004
12.C.006-12006003
12.C.006-12006002
16
Front panel
1
13.A.002-13002004
17
Gas valve
1
21.A.001-21001001
21.A.001-21001005
21.A.001-21001007
18
Liquid valve
1
21.A.002-21002001
21.A.002-21002006
21.A.002-21002007
19
Modules
1
12.C.007-12007002
12.C.007-12007003
12.C.007-12007004
20
Solenoid coil
1
27.J.001-27001003
27.J.001-27001005
27.J.001-27001006
21
Right side panel
1
13.A.006-13006003
13.A.006-13006005
13.A.006-13006006
22
Electrical Inductance
1
16.A.005-16005004
16.A.005-16005004
16.A.005-16005007
23
Capacitance clip
1
13.A.014-13014001
24
Film Capacitor
1
25
Retaining clip
1
16.A.005-16005050
16.A.005-16005050
16.A.005-16005050
26
Electrical box
1
13.A.011-13011002
13.A.011-13011004
13.A.011-13011004
27
Fan start capacitor
1
30.B.001-30001002
30.B.001-30001003
30.B.001-30001006
28
Control PCB
1
26.B.003-26003004
26.B.003-26003005
26.B.003-26003006
29
Modules
1
26.B.001-26001003
26.B.001-26001001
26.B.001-26001001
30
Heatsink
1
26.B.001-26001003
26.B.001-26001001
26.B.001-26001001
31
Motor bracket
1
13.A.004-13004009
13.A.004-13004013
13.A.004-13004018
32
Electronic expansion
valve
1
12.C.007-12007002
12.C.007-12007003
12.C.007-12007004
33
Pressure protection
2
Exploded Views And Material Code
13
1.5 Exploded View (indoor unit)VRHA-48/60AN1DC/INB
Exploded Views And Material Code
14
1.6 Material Code(indoor unit)VRHA-48AN1DC/INB
NO.
NAME
Q'TY
VRHA-48AN1DC/INB
1
Modules
1
26.B.001-26001006
2
Control board
1
26.B.003-26003008
3
Power Plate
1
26.B.003-26003001
4
PFC inductor
1
27.J.003-27003001
5
Terminal Block
1
27.A.001-27001009
6
Left Fence
1
13.A.009-13009006
7
Partition plate
1
13.A.003-13003022
8
After fencing
1
13.A.009-13009005
9
Four-way valve
1
10
Buckle
1
16.A.008-16008094
11
Right side plate
1
13.A.006-13006007
12
Back to the trachea
1
22.A.003-22003040
13
Exhaust pipe
1
22.A.002-22002040
14
Gas valve
1
21.A.001-21001007
15
Liquid valve
1
21.A.002-21002007
16
Electronic expansion valve
1
20.B.001-202001004
17
Reservoir
1
18
rubber pad
1
18.B.001-18001039
19
Compressor
1
18.A.001-18001012
20
Chassis
1
13.A.001-13001024
21
Motor bracket
1
13.A.004-13004021
22
Motor
1
24.D.001-24001007
23
Blade
1
16.B.001-16001012
24
Pumping hands
1
16.A.005-16005009
25
Net
1
16.A.005-16005048
26
Cover
1
13.A.008-13008005
27
Electric lid
1
13.A.012-13012006
28
Electrical box
1
13.A.011-13011006
29
Condenser
1
19.B.001-19001020
Printed Circuit Board Connector Wiring Diagram
15
Part 3
Printed Circuit Board Connector
Wiring Diagram
1. Indoor unit
............................................................................................................................................
16
1.1 VRHA-18/24/36/48AN1DC/INB
...........................................................................................
16
2. Outdoor unit
........................................................................................................................................
19
2.1 VRHA-18AN1DC/INB
............................................................................................................
19
2.2 VRHA-24/36AN1DC/INB
......................................................................................................
25
2.3 VRHA-48AN1DC/INB
............................................................................................................
31
Printed Circuit Board Connector Wiring Diagram
16
1. Indoor unit
1.1 VRHA-18/24/36/48AN1DC/INB
Connectors PCB(1) (Control PCB) (indoor unit)
CN1) Connect the AC positive
CN2) Connect the transformer input
CN4) Connect the AC negative
CN5) Connect wired remote control
CN5) Connect the transformer output
CN9) Connect water flow protection
CN11) Connect indoor and outdoor communication
CN12) Connect the tank sensor
Note:
Other designations
PCB(1) (Control PCB) (indoor unit)
SW1) Forced operation ON / OFF switch
FUSE1) Fuse（3.15A)
Printed Circuit Board Connector Wiring Diagram
17
PCB Detail PCB(1): Control PCB (indoor unit)
Printed Circuit Board Connector Wiring Diagram
18
PCB Photo PCB(1): Control PCB (indoor unit)
Printed Circuit Board Connector Wiring Diagram
19
2. Outdoor unit
2.1 VRHA-18AN1DC/INB
Connectors PCB(1) Control PCB (outdoor unit)
CN1) Connect filtering capacitor
CN4) Connect the AC positive
CN5) Connect electronic expansion valve
CN6) Connect the AC negative
CN8) Connect to ground
CN10) Connect bridge heap negative
CN11) Connect parts negative
CN14) Connect the fan motor
CN15) Connect the sensor
CN16) Connect compressed mechanical and electrical heating
CN17) Connect indoor and outdoor communication
CN21) Connect the four-way valve coil
CN23) Connect low pressure protection
CN24) Connect high pressure protection
CN27) Connect the IPM module communication
CN39) Connect the trouble light
CN2、CN9) Connect the IPM module
Note: Other designations
PCB(1) Control PCB (outdoor unit)
C3、C7) Varistor
F1) Fuse(3.15A)
Printed Circuit Board Connector Wiring Diagram
20
PCB Detail PCB(1) Control PCB (outdoor unit)
Printed Circuit Board Connector Wiring Diagram
21
PCB Photo PCB(1) Control PCB (outdoor unit)
Printed Circuit Board Connector Wiring Diagram
22
Connectors PCB(1) Inverter module(IPM) PCB
CN614) Connect electric controller communication (outdoor)
CN500、CN504) Connect electronic control unit (outdoor)
CN501、CN502、CN503) Connect the compresso
Printed Circuit Board Connector Wiring Diagram
23
PCB Detail PCB(1) Inverter module(IPM) PCB
Printed Circuit Board Connector Wiring Diagram
24
PCB Photo PCB(1) Inverter module(IPM) PCB
Printed Circuit Board Connector Wiring Diagram
25
2.2 VRHA-24/36AN1DC/INB
Connectors PCB(1) Control PCB (outdoor unit)
CN1、CN10) Connect PFC board
CN4) Connect the AC positive
CN5) Connect electronic expansion valve
CN6) Connect the AC negative
CN8) Connect to ground
CN11) Connect parts negative
CN14) Connect the fan motor
CN15) Connect the sensor
CN16) Connect compressed mechanical and electrical heating
CN17) Connect indoor and outdoor communication
CN21) Connect the four-way valve coil
CN23) Connect low pressure protection
CN24) Connect high pressure protection
CN27) Connect the IPM module communication
CN39) Connect the trouble light
CN2、CN9) Connect the IPM module
Note: Other designations
PCB(1) Control PCB (outdoor unit)
C3、C7) Varistor
F1) Fuse(3.15A)
Printed Circuit Board Connector Wiring Diagram
26
PCB Detail PCB(1) Control PCB (outdoor unit)
Printed Circuit Board Connector Wiring Diagram
27
PCB Photo PCB(1) Control PCB (outdoor unit)
Printed Circuit Board Connector Wiring Diagram
28
Connectors PCB(1) Inverter module(IPM) PCB
CN614) Connect electric controller communication (outdoor)
CN500、CN504) Connect electronic control unit (outdoor)
CN501、CN502、CN503) Connect the compressor
PCB(2) PFC board
P1) Connect bridge pile positive
P5) Connect bridge heap negative
P2、P4) Connect electronic control unit (outdoor)
P6、P3) Connect the inductor
Printed Circuit Board Connector Wiring Diagram
29
PCB Detail PCB(1) Inverter module(IPM) PCB
PCB(2) PFC board
Printed Circuit Board Connector Wiring Diagram
30
PCB Photo PCB(1) Inverter module(IPM) PCB
PCB(2) PFC board
Printed Circuit Board Connector Wiring Diagram
31
2.3 VRHA-48AN1DC/INB
Connectors PCB(1) Control PCB (outdoor unit)
CN4) Connect the AC positive
CN5) Connect electronic expansion valve
CN6) Connect the AC negative
CN8、CN35) Connect the power supply PCB
CN14) Connect the fan motor
CN15) Connect the sensor
CN17) Connect indoor and outdoor communication
CN18) Connect PFC board
CN21) Connect the four-way valve coil
CN23) Connect low pressure protection
CN24) Connect high pressure protection
CN27) Connect the IPM module communication
Note: Other designations
PCB(1) Control PCB (outdoor unit)
F1) Fuse（3.15A
Printed Circuit Board Connector Wiring Diagram
32
PCB Detail PCB(1) Inverter module(IPM) PCB
Printed Circuit Board Connector Wiring Diagram
33
PCB Photo PCB(1) Control PCB (outdoor unit)
Printed Circuit Board Connector Wiring Diagram
34
Connectors PCB(1) Power PCB (outdoor unit)
CN2、CN8） Connect PFC board
CN3、CN9） Connect IPM module
CN4) Connect the AC positive
CN5) Connect the AC negative
CN6) Connect bridge pile AC
CN7) Connect ground
L(AC) Connect bridge pile AC
Printed Circuit Board Connector Wiring Diagram
35
PCB Detail PCB(1) Power PCB (outdoor unit)
Printed Circuit Board Connector Wiring Diagram
36
PCB Photo PCB(1) Power PCB (outdoor unit)
Printed Circuit Board Connector Wiring Diagram
37
Connectors PCB(1) Inverter module(IPM) PCB
CN614) Connect electric controller communication (outdoor)
CN500、CN504) Connect Power PCB (outdoor unit)
CN501、CN502、CN503) Connect the compressor
PCB(2) PFC board
CN2) Connect electric controller communication (outdoor)
CN3、CN4) Connect Power PCB (outdoor unit)
CN5) Connect DC rectifier bridge positive and inductors
CN6) Connect the inductor
CN7) Connect bridge DC negative
Printed Circuit Board Connector Wiring Diagram
38
PCB Detail PCB(1) Inverter module(IPM) PCB
PCB(2) PFC board
Printed Circuit Board Connector Wiring Diagram
39
PCB Photo PCB(1) Inverter module(IPM) PCB
PCB(2) PFC board
Common Wearing Parts
40
Part 4
Common Wearing Parts
1. Common wearing parts (indoor unit)...............................................................................................41
1.1 Sensor..................................................................................................................................... 41
1.2 Pump........................................................................................................................................42
1.3 Wired remote control............................................................................................................. 44
2. Common wearing parts (outdoor unit)............................................................................................ 45
2.1 Sensor..................................................................................................................................... 45
2.2 Fan Motor................................................................................................................................46
2.3 Filter Capacitor....................................................................................................................... 49
2.4 Fan motor capacitor.............................................................................................................. 50
Common Wearing Parts
41
1. Common wearing parts (indoor unit)
1.1 Sensor
VHRA-18/24/36/48AN1DC/INB Photo
Common Wearing Parts
42
1.2 Linear Transformer
VRHA-12/18/24AN1DCT Photo
Common Wearing Parts
43
Rota ted speed
P1(W )
In(A )
3
100
0.45
2
70
0.35
1
55
0.25
1.3 Pump
VHRA-18/24AN1DC/INB Photo
The system pressure, maximum 1 mpa
Diameter is 20/25 model can provide: brass/bronze pump body
Technical date
Models
Size（mm)
weight(kg)
volume
((M
3)
H
H1
L
G
B
net weight
rough weight
GPD20-6S
130
105
130
1"tu rn3 /4"
130
2.7
2.9
0.004
GPD25 -6S
130
105
130/180
11/2"tur n1"
130
2.7
2.9
0.004
GPD32 -6S
130
105
180
2"tu rn11/4"
130
2.7
2.9
0.004
Common Wearing Parts
44
VHRA-36AN1DC/INB Photo
The system pressure, maximum 1 mpa
Diameter of 25 models can provide: brass, bronze pump body
Diameter is 32 models can provide: stainless copper pump body
Technical date
Models
Size（mm)
Weight(kg )
volume
(m3)
H
H1
LGB
net we igh t
rough weight
GPD25-8S
160
130
180 18
11/2 "turn1"
150
4.2
4.5
0.008
GPD32 -8S
160
130
180
2"t urn 11 /4or"11/2"
150
4.2
4.5
0.008
Rota ted speed
P1(W )
In(A)
3
245
1.1
2
190
0.85
1
135
0.60
Common Wearing Parts
45
1.4 Wired remote control
VHRA-18/24/36/48AN1DC/INB Photo
Common Wearing Parts
46
2. Common wearing parts (outdoor unit)
2.1 Sensor
VHRA-18/24/36/48AN1DC/INB Photo
Common Wearing Parts
47
2.2 Fan Motor
VHRA-18/48AN1DC/INB Photo
Common Wearing Parts
48
VHRA-24AN1DC/INB Photo
Common Wearing Parts
49
VHRA-36AN1DC/INB Photo
Common Wearing Parts
50
2.3 Filter Capacitor
VHRA-18AN1DC/INB Photo
Common Wearing Parts
51
2.4 Fan motor capacitor
VHRA-18/48AN1DC/INB Photo
VHRA-24AN1DC/INB Photo
Common Wearing Parts
52
VHRA-36AN1DC/INB Photo
Comparison Table
53
Part 5
Comparison Table
1. Wired Controller................................................................................................................................. 53
1.1 Function...................................................................................................................................53
1.2 Operating Instructions........................................................................................................... 54
1.3 Error Codes and Analysis..................................................................................................... 56
2.Pressure Refrigerant Loop Temperature Control Table................................................................ 57
2.1 R410 Table.............................................................................................................................. 57
3. Sensors Resistance Table................................................................................................................ 58
3.1 Compressor Exhaust Temperature Sensor Resistance...................................................58
3.2 Ambient/Indoor/Outdoor Pipe Sensor Resistance.............................................................59
Comparison Table
54
1. Wired Controller
1.1 Function
COOLING
HEATING
LOCK
WATER TANK
TIMER ON
TIMER OFF
WATER TANK HEATING
Cent igrade/F ahr enheit
FUNCTIO N SETTING
COMP RES SOR STATUS
OUTDOOR UNIT FAN MOTOR STATUS
ELEC TRI C HEATING EL EMENT STATUS
CLOCK /TI MER/HOUR-M INU TES
TEMP ERATURE/F UNC TIONAL DATA
Comparison Table
55
:
1.2 Operating Instructions
1
: OPE RATI ON:
Wh en
disp layed on panel, you co uld press ON/OFF button to un loc k.
1.1: MODE butto n:
1.1.1 Press this button could se lect Coolin g mode or Heati ng mode;
1.2: ON/OFF but ton :
Press to turn on or tur n off the unit; If press till “beep ” sound, to lock the wire controller, if press again till
“beep” sound, to unlock the wi re contro ller.
1.3： CLOCK but ton :
1.3.1Clock setting:
Press CLOCK button till flas hing, Min utes digit flashin g, using “UP”、“DOWN ”
button to set minute ;
press CL OCK button again, Hour di git fla shi ng, using “UP”、 “DOWN ”button to set hour; af ter setting, pres s
CLOCK button again or leav e it for abo ut 10 seco nds, setting is sa ved automatically;
1.3.2T IMER ON/OFF :
System cou ld be set for TI MER ON and TIMER OFF within 24h rs,se tti ng unit by 1 minute.
A. TIMER ON SETTING:When the system under OFF statu s,press CLOCK bu tton in t o TIM E ON,us e U P
DOW N but ton to ch oose time you wa nt,an d use CLOC K butto n to sh ift bet wee n Hour and Minute on the
disp lay.After se tting press CLOCK button again or wait for 5 seco nds for confi rma tion, TIM E ON on the
panel is on.If you want to ca ncel setti ng,just press ON/OFF button again.
B. TIMER OFF SET TING:When the sy stem under ON/Ope rati o n status,press CLO C K but ton,us e UP
DOW N but ton t o choose time you want ,and use CLOCK button to shift between Ho ur and Minute on the
disp lay.After setting press CLOCK button again or wait for 5 se con ds for confirmation ,TIME OFF on the
panel is on.If you want to ca ncel setti ng,just press ON/OFF button again.
1.4： SET butto n
1.4.1 Press to set up or modify syste m parameters,shift between P01–P12, th en us ing UP DOWN
bu tto n t o se t -up or chan g e da ta; af ter setti ng,press SET but ton again for savin g:
Pr ess UP DOW N but tons toget her till ““beep” soun d ,the whole syst e m be reco vered to the
fact ory def ault setting.
1.5: UP DOWN but tons
1. 5.1 Pres s UP DOWN bu t ton s tog ethe r til l”“bee p ” soun d,the who le syst e m be recovere d to the facto ry
defa ult setting.
1. 5.2 Pres s UP DO W N bu t ton s t o se lect or adj ust al l kin d s of data.
Comparison Table
56
Code
Setting mode
Setting Data Range
P01
Hot water temperature
68℉-140℉, Default:113℉
P02
Cold water temperature
41℉-95℉, Default:50
℉
P03
Water temperature difference for compressor
start between water tank temp. & Hot water
temp.
38℉~59℉, Default: 41℉
P04
ON/OFF Mode or Constant Water
Temperature(CWT) Mode
0: ON/OFF; 1: CWT; Default: 0
P05
Water temperature difference for
compressor start under CWT Mode
32℉~46℉, Default: 37
℉
P06
Delay time for Auxiliary Electric Heating
Element starting under heating mode
3-180min，Default:90min
P07
Auxiliary Electric Heating Element starting
temperature
68℉~131℉, Default: 122℉
P08
Outdoor Ambient temperature for whole
system shut-down
-22℉~30℉, Default:-22℉
P09
Defrosting mode selection
0: auto mode; 1: manual
setting mode
P10
Defrosting starting by fan coil temperature
(both for auto mode and manual mode)
5℉~35℉, Default:24
℉
P11
Defrosting cycle interval time (only for
manual mode)
25～70min ,Default :40 min
P12
Defrosting time (only for manual mode)
2～20 min,Default:8 min
P13
Defrosting quit by fan coil temperature (both
for auto mode and manual mode)
47℉~68℉, Default:53 ℉
P14
Water Pump on-off selection
0: on mode; 1: off mode
Comparison Table
57
1.3 Error Codes and Analysis
ERROR
CODE
ERROR CODE INDICATION
E01
Eeprom error(IDU PCB/Wire controller)
E02
The wster tank temperature sensor failure
E05
Outdoor unit condenser temperature sensor failure
E06
Outdoor unit ambient temperature sensor failure
E07
Outdoor unit gas discharge temperature sensor failure
E08
Signal communication between wire controller and indoor unit main PCB
failure
E09
Signal communication between ouidoor onit main PCB and inverter
modular modular board failure
E10
Boot failure (compressor protection disconnect;compressor top high
temperature protection)
E11
Outdoor unit overcurrent failure(current protection of outdoor unit)
E12
Inverter modular board failure
E13
Discharge gas temperature or compressor temperature overheat
protection
E15
Over current or low current protection
E21
Water tank temperature is too low to protect
Comparison Table
58
2.Pressure Refrigerant Loop Temperature
Control Table
2.1 R410 Table
R410A REFRIGERANT PRESSURE TEMPERATURE TABLE
Temperature(C°)
Absolute
Temperature(C°)
Absolute
Temperature(C°)
Absolute
-65
0.052
-22
0.375211.47
-64
0.054
-21
0.391221.52
-63
0.057
-20
0.404231.56
-62
0.061
-19
0.424241.6
-61
0.064
-18
0.435251.64
-60
0.068
-17
0.453261.68
-59
0.072
-16
0.468271.73
-58
0.076
-15
0.483281.78
-57
0.08
-14
0.504291.82
-56
0.084
-13
0.52301.88
-55
0.089
-12
0.538311.91
-54
0.093
-11
0.556321.96
-53
0.098
-10
0.579332.03
-52
0.103
-9
0.598342.08
-51
0.108
-8
0.618352.13
-50
0.113
-7
0.639362.18
-49
0.119-60.66372.24
-48
0.125
-5
0.682382.29
-47
0.131
-4
0.705392.35
-46
0.138
-3
0.728402.41
-45
0.144
-2
0.752412.46
-44
0.151
-1
0.777422.51
-43
0.157
0
0.803432.58
-42
0.165
1
0.823442.65
-41
0.172
2
0.851452.71
-40
0.181
3
0.879462.77
-39
0.188
4
0.903472.84
-38
0.196
5
0.937482.91
-37
0.206
6
0.962492.98
-36
0.215
7
0.994503.05
-35
0.22481.02513.1
-34
0.23591.05523.18
-33
0.243101.09533.25
-32
0.255111.11543.32
-31
0.264121.15553.4
-30
0.275131.18563.48
-29
0.286141.22573.54
-28
0.298151.25583.63
-27
0.311161.28593.72
-26
0.324171.32603.78
-25
0.334181.35613.9
-24
0.348191.4623.97
-23
0.363201.44
Note: The conversion between absolute pressure and gauge pressure : the absolute pressure (MPa)-0.1MPa
( atmospheric pressure ) = gauge pressure (MPa).
Comparison Table
59
3. Sensors Resistance Table
3.1 Compressor Exhaust Temperature Sensor Resistance
Unit
： ℃
--KΩ (Compressor discharge temperature）55K
t ℃
R(KΩ)
AD
t ℃
R(KΩ)
AD
t ℃
R(KΩ)
AD
t ℃
R(KΩ)
AD
-20
542.7
32068.662660
13.59
95
100
3.702
175
-19
511.9
32165.622861
13.11
97
101
3.595
177
-18
483422
62.732962
12.65
99
102
3.492
178
-17
455.9
42359.983063
12.21
101
103
3.392
180
-16
430.5
42457.373164
11.79
103
104
3.296
181
-15
406.7
42554.893265
11.38
106
105
3.203
183
-14
384.3
52652.533466
10.99
108
106
3.113
184
-13
363.3
52750.283567
10.61
110
107
3.025
186
-12
343.6
52848.143668
10.25
112
108
2.941
187
-11
325.1
62946.113869
9.902
114
109
2.86
188
-10
307.7
63044.173970
9.569
117
110
2.781
190
-9
291.3
63142.334071
9.248
119
111
2.704
191
-8
275.9
73240.574272
8.94
121
112
2.63
193
-7
261.4
73338.894373
8.643
123
113
2.559
194
-6
247.8
83437.34574
8.358
125
114
2.489
195
-5
234.9
83535.784775
8.084
127
115
2.422
196
-4
222.8
83634.324876
7.82
129
116
2.357
198
-3
211.4
93732.945077
7.566
132
117
2.294
199
-2
200.7
93831.625278
7.321
134
118
2.233
200
-1
190.5
103930.365379
7.086
136
119
2.174
201
0
180.9
104029.155580
6.859
138
120
2.117
202
1
171.9
1141285781
6.641
140
121
2.061
203
2
163.3
124226.95982
6.43
142
122
2.007
204
3
155.2
124325.866083
6.228
144
123
1.955
206
4
147.6
134424.856284
6.033
146
124
1.905
207
5
140.4
134523.896485
5.844
148
125
1.856
208
6
133.5
144622.896686
5.663
150
126
1.808
209
7
127.1
154722.16887
5.488
152
127
1.762
210
8
1211548
21.267088
5.32
154
128
1.717
211
9
115.2
164920.467289
5.157
156
129
1.674
211
10
109.8
175019.6974905157
130
1.632
212
11
104.6
185118.967691
4.849
159
256
12
99.69
195218.267892
4.703
161
256
13
95.05
205317.588093
4.562
163
B(25/50)=3950K+-
3%R(90℃)=5KΩ+-
3%
256
14
90.66
205416.948294
4.426
165
256
15
86.49
215516.328495
4.294
167
256
16
82.54
225615.738696
4.167
168
256
17
78.79
235715.168897
4.045
170
256
18
75.24
245814.629098
3.927
172
256
19
71.86
255914.099399
3.812
173
256
Comparison Table
60
3.2 Ambient/Indoor/Outdoor Pipe Sensor Resistance
Unit： ℃--KΩ(Ambient/Indoor/Outdoor Pipe Sensor Resistance)10K
t ℃
R(KΩ)
AD
t ℃
R(KΩ)
AD
t ℃
R(KΩ)
AD
t ℃
R(KΩ)
AD
-30
204.168
18428.364
91385.633
188721.519
232
-29
192.180
19526.896
95395.400
190731.466
233
-28
180.887
20625.513
98405.179
192741.416
234
-27
170.253
21724.210
101414.967
194751.367
234
-26
160.245
23822.982
104424.766
196761.321
235
-25
150.830
24921.824
107434.573
198771.276
236
-24
141.974
251020.731
111444.390
200781.233
236
-23
133.648
271119.700
114454.215
201791.191
237
-22
125.822
281218.727
117464.048
203801.151
237
-21
118.467
301317.808
120473.888
205811.113
238
-20
111.557
311416.940
123483.736
206821.076
238
-19
105.065
331516.120
127493.590
208831.041
239
-18
98.967
351615.345
130503.451
209841.007
239
-17
93.241
371714.612
133513.318
211850.974
240
-16
87.863
391813.920
136523.191
212860.942
240
-15
82.812
411913.264
139533.069
213870.912
241
-14
78.069
432012.644
142542.952
215880.883
241
-13
73.616
452112.056
145552.841
216890.855
242
-12
69.433
472211.500
148562.734
217900.828
242
-11
65.505
502310.973
151572.632
218910.802
242
-10
61.816
522410.474
154582.534
220920.777
243
-9
58.351
542510.000
156592.440
221930.753
243
-8
55.096
57269.551
159602.350
222940.730
243
-7
52.038
59279.125
162612.264
223950.708
244
-6
49.165
62288.721
165622.181
224960.686
244
-5
46.465
65298.337
167632.102
225970.666
244
-4
43.927
68307.972
170642.026
226980.646
245
-3
41.541
70317.626
172651.953
227990.627
245
-2
39.297
73327.297
175661.883
228
100
0.609
245
-1
37.187
76336.984
177671.816
229
101
0.591
245
0
35.202
79346.686
179681.752
229
102
0.574
246
1
33.334
82356.403
182691.690
230
103
0.558
246
2
31.577
85366.134
184701.631
231
104
0.542
246
3
29.922
88375.877
186711.574
232
105
0.527
246
Appendix
61
Part 6
Appendix
1. Piping Diagrams................................................................................................................................. 61
1.1 Indoor Units............................................................................................................................. 61
1.2 Outdoor Units.......................................................................................................................... 62
2. Wiring Diagrams.................................................................................................................................63
2.1 Indoor Units............................................................................................................................. 63
2.2 Outdoor Units..........................................................................................................................64
Appendix
62
1. Piping Diagrams
1.1 Indoor Units
REFRIGERANT FLOW
COOLING
HEATING
Appendix
63
1.2 Outdoor Units
REFRIGERANT FLOW
COOLING
HEATING
Appendix
64
2. Wiring Diagrams
2.1 Indoor Units
VRHA-18/24/36/48AN1DC/INB
Appendix
65
2.2 Outdoor Units
VRHA-18AN1DC/INB
Appendix
66
VRHA-24/36AN1DC/INB
Appendix
67
VRHA-48AN1DC/INB
Loading...