Order No. PHAAM1002067C2
Air-to-Water Heatpump
Indoor Unit
Outdoor Unit
WH-SDH07C3E5 WH-UD07CE5
WH-SDH09C3E5 WH-UD09CE5
TABLE OF CONTENTS
PAGE
1 Safety Precautions----------------------------------------------- 3
2 Specifications ----------------------------------------------------- 5
2.1. WH-SDH07C3E5 WH-UD07CE5 --------------------- 5
2.2. WH-SDH09C3E5 WH-UD09CE5 --------------------- 7
3 Features ------------------------------------------------------------- 9
4 Location of Controls and Components ------------------10
4.1. Indoor Unit--------------------------------------------------10
4.2. Outdoor Unit -----------------------------------------------15
5 Dimensions--------------------------------------------------------16
5.1. Indoor Unit--------------------------------------------------16
5.2. Outdoor Unit -----------------------------------------------17
6 Refrigeration And Water Cycle Diagram-----------------18
PAGE
7 Block Diagram --------------------------------------------------- 19
8 Wiring Connection Diagram--------------------------------- 20
8.1. Indoor Unit ------------------------------------------------- 20
8.2. Outdoor Unit----------------------------------------------- 21
9 Electronic Circuit Diagram----------------------------------- 22
9.1. Indoor Unit ------------------------------------------------- 22
9.2. Outdoor Unit----------------------------------------------- 23
10 Printed Circuit Board ------------------------------------------ 24
10.1. Indoor Unit ------------------------------------------------- 24
10.2. Outdoor Unit----------------------------------------------- 25
11 Installation Instruction ---------------------------------------- 27
11.1. Select The Best Location ------------------------------ 27
© Panasonic HA Air-Conditioning (M) Sdn. Bhd. 2010.
Unauthorized copying and distribution is a violation of law.
11.2. Indoor/Outdoor Unit Installation Diagram ---------- 27
11.3. Indoor Unit ------------------------------------------------- 28
11.4. Outdoor Unit ----------------------------------------------- 32
12 Operation and Control----------------------------------------- 35
12.1. Basic Function -------------------------------------------- 35
12.2. Water Pump ----------------------------------------------- 40
12.3. Pump Down Operation --------------------------------- 40
12.4. Flow Switch ------------------------------------------------ 40
12.5. Force Heater Mode Operation ------------------------ 41
12.6. Indoor Unit Safety ---------------------------------------- 41
12.7. Auto Restart Control------------------------------------- 41
12.8. Indication Panel------------------------------------------- 42
12.9. Indoor Back-Up Heater Control----------------------- 42
12.10. Tank Booster Heater Control -------------------------- 43
12.11. Three Way Valve Control------------------------------- 43
12.12. Sterillization Mode --------------------------------------- 43
13 Protection Control ---------------------------------------------- 44
13.1. Protection Control For All Operations--------------- 44
13.2. Protection Control For Heating Operation --------- 45
14 Servicing Mode -------------------------------------------------- 46
14.1. Test Run ---------------------------------------------------- 46
14.2. Proper Pump Down Procedure ----------------------- 46
14.3. How To Adjust Water Flow Rate---------------------- 46
14.4. Expansion Vessel Pre Pressure Checking--------- 46
15 Maintenance Guide --------------------------------------------- 47
16 Troubleshooting Guide---------------------------------------- 49
16.1. Refrigeration Cycle System --------------------------- 49
16.2. Relationship Between The Condition Of The
Air-to-Water Heatpump Indoor And Outdoor
Units And Pressure And Electric Current ---------- 50
16.3. Breakdown Self Diagnosis Function ---------------- 51
16.4. Error Codes Table---------------------------------------- 52
16.5. Self-diagnosis Method ---------------------------------- 54
17 Disassembly and Assembly Instructions --------------- 80
17.1. To Remove Front Plate --------------------------------- 80
17.2. To Remove Cabinet-------------------------------------- 80
17.3. To Remove Pressure Gauge -------------------------- 81
17.4. To Remove Control Panel------------------------------ 81
17.5. To Remove RCCB --------------------------------------- 82
17.6. To Remove Terminal Board Ass’y-------------------- 82
17.7. To Remove Transformer and Electronic
Controller Board ------------------------------------------ 83
17.8. To Remove Pressure Relief Valve, Flow
Switch, Water Pump and Bottle Complete--------- 84
18 Technical Data---------------------------------------------------- 86
18.1. Operation Characteristics ------------------------------ 86
18.2. Heating Capacity Table --------------------------------- 90
18.3. Hydraulic Pump Performance------------------------- 90
19 Exploded View and Replacement Parts List ----------- 91
19.1. WH-SDH07C3E5 WH-SDH09C3E5 ---------------- 91
19.2. WH-UD07CE5 WH-UD09CE5 ----------------------- 93
2
1 Safety Precautions
• Read the following “SAFETY PRECAUTIONS” carefully before perform any servicing.
• Electrical work must be installed or serviced by a licensed electrician. Be sure to use the correct rating and main circuit for the
model installed.
• The caution items stated here must be followed because these important contents are related to safety. The meaning of each
indication used is as below. Incorrect installation or servicing due to ignoring of the instruction will cause harm or damage, and
the seriousness is classified by the following indications.
This indication shows the possibility of causing death or serious injury.
This indication shows the possibility of causing injury or damage to properties.
• The items to be followed are classified by the symbols:
This symbol denotes item that is PROHIBITED from doing.
• Carry out test run to confirm that no abnormality occurs after the servicing. Then, explain to user the operation, care and
maintenance as stated in instructions. Please remind the customer to keep the operating instructions for future reference.
1. Do not modify the machine, part, material during repairing service.
2. If wiring unit is supplied as repairing part, do not repair or connect the wire even only partial wire break. Exchange the whole wiring
unit.
3. Do not wrench the fasten terminal. Pull it out or insert it straightly.
4. Engage dealer or specialist for installation and servicing. If installation of servicing done by the user is defective, it will cause water
leakage, electrical shock or fire.
5. Install according to this installation instructions strictly. If installation is defective, it will cause water leakage, electric shock or fire.
6. Use the attached accessories parts and specified parts for installation and servicing. Otherwise, it will cause the set to fall, water
leakage, refrigerant leakage, fire or electrical shock.
7. Install at a strong and firm location which is able to withstand the set’s weight. If the strength is not enough or installation is not
properly done, the set will drop and cause injury.
8. Do not install outdoor unit near handrail of veranda. When installing outdoor unit at veranda of high rise building, child may climb up
to outdoor unit and cross over the handrail and causing accident.
9. For electrical work, follow the local national wiring standard, regulation and the installation instruction. An independent circuit and
single outlet must be used. If electrical circuit capacity is not enough or defect found in electrical work, it will cause electrical shock or
fire.
10. This equipment must be properly earthed. Earth line must not be connected to gas pipe, water pipe, earth of lightning rod and
telephone. Otherwise, it may cause electric shock in case equipment breakdown or insulation breakdown.
11. Do not use joint cable for indoor / outdoor connection cable. Use specified indoor / outdoor connection cable, refer to Installation
Instructions CONNECT THE CABLE TO THE INDOOR UNIT and connect tightly for indoor / outdoor connection. Clamp the cable so
that no external force will be acted on the terminal. If connection or fixing is not perfect, it will cause heat up or fire at the connection.
12. When install or relocate Air to Water Heatpump indoor / outdoor unit, do not let any substance other than the specified refrigerant, eg.
air etc. mix into refrigerant cycle (piping). Mixing of air etc. will cause abnormal high pressure in refrigeration cycle and result in
explosion, injury etc.
13. This is a R410A model. When connecting the piping, do not use any existing (R22) pipes and flare nuts. Using such same may cause
abnormally high pressure in the refrigeration cycle (piping), and possibly result in explosion and injury. Use only R410A refrigerant.
Thickness of copper pipes used with R410A must be more than 0.8 mm. Never use copper pipes thinner than 0.8 mm.
It is desirable that the amount of residual oil is less than 40 mg/10 m.
14. During installation, install the refrigerant piping properly before run the compressor. Operation of compressor without fixing
refrigeration piping and valves at opened condition will cause suck-in of air, abnormal high pressure in refrigeration cycle and result in
explosion, injury etc.
15. During pump down operation, stop the compressor before remove the refrigeration piping. Removal of refrigeration piping while
compressor is operating and valves are opened condition will cause suck-in of air, abnormal high pressure in refrigeration cycle and
result in explosion, injury etc.
16. After completion of the installation servicing confirm there is no leakage of refrigerant gas. It may generate toxic gas when the
refrigerant contacts with fire.
17. Ventilate the room if there is refrigerant gas leakage during operation. Extinguish all fire sources if present. It may cause toxic gas
when the refrigerant contacts with fire.
18. Only use the supplied or specified installation parts, else, it may cause unit vibrate loose, water/refrigerant leakage, electrical shock
or fire.
3
19. The unit is only for use in a closed portable water system. Utilization in an open water circuit or non-portable water circuit, may lead to
excessive corrosion of the water piping and risk of incubating bacteria colonies, particularly Legionella, in water.
20. Do not insert your fingers or other objects into the unit, high speed rotating fan may cause injury.
21. Do not dismantle refrigerant piping using pipe wrench. It might deform the piping and cause the unit to malfunction.
22. Select a location where in case of water leakage, the leakage will not cause damage to other properties.
23. Do not locally purchase electrical parts of the product for the purpose of installation, service, maintenance and etc. They might cause
electrical shock or fire.
24. Do not branch the power from terminal block to heater tape. Overloaded terminal block will cause electrical shock or fire.
25. Installation or servicing work. It may need two people to carry out the installation or servicing work.
26. Do not use unspecified cord, modified cord, joint cord or extension cord for power supply cord. Do not share the single outlet with
other electrical appliances. Poor contact, poor insulation or over current will cause electrical shock or fire.
27. Tighten the flare nut with torque wrench according to specified method. If the flare nut is over-tightened, after a long period, the flare
may break and cause refrigerant gas leakage.
1. Do not install the air-to-water heatpump indoor unit and outdoor unit at place where leakage of flammable gas may occur. In case gas
leaks and accumulates at surrounding of the unit, it may cause fire.
2. Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the room and damage
the furniture.
3. It may need two persons to carry out the installation work. The weight of indoor / outdoor unit might cause injury if carried by one
person.
4. Do not touch outdoor unit air inlet and aluminium fin. It may cause injury.
5. Select an installation location which is easy for maintenance.
6. Pb free solder has a higher melting point than standard solder; typically the melting point is 50°F - 70°F (30°C - 40°C) higher. Please
use a high temperature solder iron. In case of the soldering iron with temperature control, please set it to 700 ± 20°F (370 ± 10°C).
Pb free solder will tend to splash when heated too high (about 1100°F / 600°C).
7. Power supply connection to the indoor unit.
1. Power supply point should be in easily accessible place for power disconnection in case of emergency.
2. In some countries, permanent connection of Air-to-Water Heatpump to the power supply is prohibited.
3. Use the power supply cord 3 x 6.0 mm2 type designation 60245 IEC 57 or heavier cord.
4. Strongly recommended to make permanent connection to a circuit breaker. It must be a double pole switch with a minimum
3.0mm gap.
- Use approved 30A circuit breaker for 2.5HP (SDH07C3E5/UD07CE5) and 3.0HP (SDH09C3E5/UD09CE5)
- For electrical heater connection to main (either a or b)
a. Used approved 15A/16A circuit breaker (internal heater only)
b. Used approved 30A circuit breaker (Internal heater + Ext. Heater)
8. Do not release refrigerant during piping work for installation, servicing, re-installation and during repairing a refrigeration parts. Take
care of the liquid refrigerant, it may cause frostbite.
9. Do not install this appliance in a laundry room or other high humidity location. This condition will cause rust and damage to the unit.
10. Make sure the insulation of power supply cord does not contact to hot part (i.e. refrigerant piping, water piping) to prevent from
insulation failure (melt).
11. Do not sit, step or place anything on the unit, you may fall down accidentally.
12. Do not touch the sharp aluminium fin, sharp parts may cause injury.
13. After installation, check the water leakage condition in connection area during test run. If leakage occur, it will cause damage to other
properties.
14. The unit described in this manual is designed for use in a closed water system only. Utilization in an open water circuit may lead to
excessive corrosion of the water piping.
4
2 Specifications
2.1.
WH-SDH07C3E5 WH-UD07CE5
Item
Unit
Outdoor Unit
Performance Test Condition
EUROVENT
Heating Capacity
COP
Noise Level
Air Flow
kW
7.00
BTU/h
23900
kJ/h
25200
W/W
4.40
BTU/hW
15.0
dB (A)
48
Power Level dB
66
m3/min (ft3/min)
46.0 (1624)
Refrigeration Control Device
Expansion Valve
Refrigeration Oil
FV50S (900)
cm3
Refrigerant (R410A)
Dimension
Height
1.45 (51.2)
795 (31-5/16)
Width
mm (inch)
900 (35-7/16)
Depth
mm (inch)
320 (12-19/32)
kg (lbs)
66 (146)
Liquid
mm (inch)
6.35 (1/4)
Gas
mm (inch)
15.88 (5/8)
Net Weight
Pipe Diameter
kg (oz)
mm (inch)
Standard Length
m (ft)
7 (23.0)
Pipe Length Range
m (ft)
3 (9.8) ~ 30 (98.4)
I/D & O/D Height Difference
m (ft)
20 (65.6)
Additional Gas Amount
Refrigeration Charge Less
Compressor
g/m (oz/ft)
30 (0.3)
m (ft)
10 (32.8)
Type
Hermetic Motor
Motor Type
Rated Output
Fan
Brushless (4-poles)
kW
1.70
Type
Propeller Fan
Material
PP
Motor Type
Input Power
W
—
Output Power
W
60
Fan Speed
Heat Exchanger
Transistor (8-poles)
rpm
580
Fin material
Aluminium (Pre Coat)
Fin Type
Corrugated Fin
Row × Stage × FPI
Size (W × H × L)
Item
Power Source (Phase, Voltage, Cycle)
2 × 30 × 17
38.1 × 762 × 873.8 : 903.8
mm
Unit
ø
Single
V
230
Hz
50
Input Power
kW
1.59
Maximum Input Power
kW
4.59
Starting Current
A
7.30
Running Current
A
7.30
Maximum Current
A
21.0
Power Factor
%
95
Power factor means total figure of compressor and outdoor fan motor.
5
Item
Power Cord
Unit
Number of core
-
Length
m (ft)
-
Thermostat
Electronic Control
Protection Device
Electronic Control
Item
Unit
Indoor Unit
Performance Test Condition
Operation Range
EUROVENT
Outdoor Ambient
°C
-20 ~ 35
Water Outlet
°C
25 ~ 55
Noise Level
Dimension
Water Pipe Diameter
43
mm (inch)
644 (25-11/32)
Width
mm (inch)
504 (19-27/32)
Depth
mm (inch)
295 (11-5/8)
kg (lbs)
34 (75)
Liquid
mm (inch)
6.35 (1/4)
Gas
mm (inch)
15.88 (5/8)
Inlet
mm (inch)
19.05 (3/4)
Outlet
mm (inch)
19.05 (3/4)
Water Drain Hose Inner Diameter
Pump
30
Power Level dB
Height
Net Weight
Refrigerant Pipe Diameter
dB (A)
mm (inch)
No. of Speed
3
Input Power
Hot Water Coil
W
100
Type
Brazed Plate
No. of Plates
Water Filter
15.00 (19/32)
Capacitor Run Induction Motor (2.5 μF)
Motor Type
48
Size (W x H x L)
mm
93 x 81 x 325
Water Flow Rate
l/min (ft3/min)
20.1 (0.71)
Material
Brass (Woven Wire Cloth)
Inner Diameter
Pressure Relief Valve Water Circuit
mm
22
kPa
Open: 190, Close: 183 and below
A
Residual Current Circuit Breaker (40)
I
10
Flow Switch
Magnetic Lead Switch
Protection Device
Expansion Vessel
Volume
MWP
Capacity of Integrated Electric Heater
bar
2
kW
3.00
Note:
• Heating capacities are based on outdoor air temperature of 7°C Dry Bulb (44.6°F Dry Bulb), 6°C Wet Bulb (42.8°F Wet Bulb) with
controlled indoor water inlet temperature of 30°C and water outlet temperature of 35°C.
• Specification are subjected to change without prior notice for further improvement.
6
2.2.
WH-SDH09C3E5 WH-UD09CE5
Item
Unit
Outdoor Unit
Performance Test Condition
EUROVENT
Heating Capacity
kW
COP
Noise Level
Air Flow
9.00
BTU/h
30700
kJ/h
32400
W/W
4.10
BTU/hW
14.0
dB (A)
49
Power Level dB
67
m3/min (ft3/min)
51.0 (1800)
Refrigeration Control Device
Expansion Valve
Refrigeration Oil
FV50S (900)
cm3
Refrigerant (R410A)
Dimension
kg (oz)
1.45 (51.2)
Height
mm (inch)
795 (31-5/16)
Width
mm (inch)
900 (35-7/16)
Depth
mm (inch)
320 (12-19/32)
Net Weight
Pipe Diameter
kg (lbs)
66 (146)
Liquid
mm (inch)
6.35 (1/4)
Gas
mm (inch)
15.88 (5/8)
Standard Length
m (ft)
7 (23.0)
Pipe Length Range
m (ft)
3 (9.8) ~ 30 (98.4)
m (ft)
20 (65.6)
g/m (oz/ft)
30 (0.3)
I/D & O/D Height Difference
Additional Gas Amount
Refrigeration Charge Less
Compressor
m (ft)
Type
Motor Type
Rated Output
Fan
Brushless (4-poles)
kW
1.70
Type
Propeller Fan
Material
PP
Motor Type
Input Power
Output Power
Fan Speed
Heat Exchanger
Transistor (8-poles)
W
—
W
60
rpm
640
Fin material
Aluminium (Pre Coat)
Fin Type
Corrugated Fin
Row × Stage × FPI
Size (W × H × L)
Item
Power Source (Phase, Voltage, Cycle)
10 (32.8)
Hermetic Motor
2 × 30 × 17
38.1 × 762 × 873.8 : 903.8
mm
Unit
ø
Single
V
230
Hz
50
Input Power
kW
2.20
Maximum Input Power
kW
5.01
Starting Current
A
10.10
Running Current
A
10.10
Maximum Current
A
22.9
Power Factor
%
95
Power factor means total figure of compressor and outdoor fan motor.
Power Cord
Number of core
Length
m (ft)
-
Thermostat
Electronic Control
Protection Device
Electronic Control
7
Item
Unit
Indoor Unit
Performance Test Condition
Operation Range
EUROVENT
Outdoor Ambient
°C
-20 ~ 35
Water Outlet
°C
25 ~ 55
dB (A)
30
Noise Level
Dimension
Power Level dB
43
mm (inch)
644 (25-11/32)
Width
mm (inch)
504 (19-27/32)
Depth
mm (inch)
295 (11-5/8)
kg (lbs)
34 (75)
Liquid
mm (inch)
6.35 (1/4)
Gas
mm (inch)
15.88 (5/8)
Inlet
mm (inch)
19.05 (3/4)
Height
Net Weight
Refrigerant Pipe Diameter
Water Pipe Diameter
Outlet
Water Drain Hose Inner Diameter
Pump
mm (inch)
19.05 (3/4)
mm (inch)
15.00 (19/32)
Capacitor Run Induction Motor (2.5 μF)
Motor Type
No. of Speed
3
Input Power
Hot Water Coil
W
100
Type
Brazed Plate
No. of Plates
Water Filter
48
Size (W x H x L)
mm
93 x 81 x 325
Water Flow Rate
l/min (ft3/min)
Material
Inner Diameter
mm
22
kPa
Open: 190, Close: 183 and below
A
Residual Current Circuit Breaker (40)
Volume
I
10
MWP
bar
2
kW
3.00
Pressure Relief Valve Water Circuit
Flow Switch
Magnetic Lead Switch
Protection Device
Expansion Vessel
Capacity of Integrated Electric Heater
25.8 (0.91)
Brass (Woven Wire Cloth)
Note:
• Heating capacities are based on outdoor air temperature of 7°C Dry Bulb (44.6°F Dry Bulb), 6°C Wet Bulb (42.8°F Wet Bulb) with
controlled indoor water inlet temperature of 30°C and water outlet temperature of 35°C.
• Specification are subjected to change without prior notice for further improvement.
8
3 Features
• Inverter Technology
- Energy saving
• High Efficiency
• Compact Design
• Environment Protection
- Non-ozone depletion substances refrigerant (R410A)
• Long Installation Piping
- Long piping up to 30 meter with height difference 20 meter
- Flexible 4-way piping for outdoor unit
• Easy to use control panel
• Weekly Timer setting
• Quality Improvement
- Random auto restart after power failure for safety restart operation
- Gas leakage protection
- Prevent compressor reverse cycle
- Inner protector to protect compressor
• Serviceability Improvement
- Breakdown Self Diagnosis function
- System Status Check Buttons for servicing purpose
- System Pumpdown Button for servicing purpose
- Front maintenance design for outdoor unit
• Operation Condition
HEATING
Indoor
Outdoor
Water outlet temperature (°C)
Ambient temperature (°C)
Maximum
55
35
Minimum
25
-20
NOTICE : When the outdoor temperature is out of the above temperature range, the heating capacity will drop significantly and
outdoor unit might stop for protection control.
9
4 Location of Controls and Components
4.1.
4.1.1.
Indoor Unit
Location of Control
10
11
12
4.1.2.
Weekly Timer Setting
13
4.1.3.
Setting Up The Special Functions
14
4.1.4.
4.2.
Main Components
Outdoor Unit
15
5 Dimensions
5.1.
Indoor Unit
16
5.2.
Outdoor Unit
17
6 Refrigeration And Water Cycle Diagram
Piping size
Common
Length
(m)
Max
Elevation
(m)
Min.
Piping
Length
(m)
Max.
Piping
Length
(m)
Additional
Refrigerant
(g/m)
Model
Gas
Liquid
Rated
Length
(m)
UD07CE5
5/8”
1/4”
7
10
20
3
30
30
UD09CE5
5/8”
1/4”
7
10
20
3
30
30
* If piping length is over common length, additional refrigerant should be added as shown in the table.
18
7 Block Diagram
19
8 Wiring Connection Diagram
8.1.
Indoor Unit
20
8.2.
Outdoor Unit
21
9 Electronic Circuit Diagram
9.1.
Indoor Unit
22
9.2.
Outdoor Unit
23
10 Printed Circuit Board
10.1. Indoor Unit
10.1.1. Main Printed Circuit Board
24
10.2. Outdoor Unit
10.2.1. Main Printed Circuit Board
25
10.2.2. Capacitor Printed Circuit Board
10.2.3. Noise Filter Printed Circuit Board
26
11 Installation Instruction
11.1. Select The Best Location
11.2. Indoor/Outdoor Unit
Installation Diagram
INDOOR UNIT
• There should not be any heat source or steam near the unit.
• A place where air circulation in the room is good.
• A place where drainage can be easily done.
• A place where noise prevention is taken into consideration.
• Do not install the unit near the door way.
• Ensure the spaces indicated by arrows from the wall, ceiling,
fence or other obstacles.
• Recommended installation height for indoor unit shall be at
least 80 cm.
• Must install on a vertical wall.
• When install electrical equipment at wooden building of
metal lath or wire lath, according to electrical facility
technical standard, no electrical contact between equipment
and building is allowed. Insulator must be installed in
between.
• Do not install the unit at outdoor. This is designed for indoor
installation only.
OUTDOOR UNIT
• If an awning is built over the unit to prevent direct sunlight or
rain, be careful that heat radiation from the condenser is not
obstructed.
• Avoid location where ambient temperature is below -20°C.
• Keep the spaces indicated by arrows from wall, ceiling,
fence or other obstacles.
• Do not place any obstacles which may cause a short circuit
of the discharged air.
• If outdoor unit installed near sea, region with high content of
sulphur or oily location (e.g. machinary oil, etc), it lifespan
maybe shorten.
• If piping length is over 10 m, additional refrigerant should be
added as shown in the table.
• When installing the product in a place where it
will be affected by typhoon or strong wind
such as wind blowing between buildings,
including the rooftop of a building and a place
where there is no building in surroundings, fix
the product with an overturn prevention wire,
etc. (Overturn prevention fitting model
number: K-KYZP15C)
Model
AddiMax.
Min.
Piping size Rated Max
tional
Length Eleva- Piping Piping
tion Length Length Refrige(m)
Gas Liquid
rant
(m)
(m)
(m)
(g/m)
SDH07C3E5/
5/8”
UD07CE5
1/4”
5 ~ 7.5
20
3
30
30
SDH09C3E5/
5/8”
UD09CE5
1/4”
5 ~ 7.5
20
3
30
30
Example : For SDH07C3E5/UD07CE5
If the unit is installed at a 20 m distance, the quantity of
additional refrigerant should be 300 g ...... (20 - 10) m x 30 g/m
= 300 g.
27
11.3. Indoor Unit
11.3.3.
11.3.1.
11.3.3.1. Install The Indoor Unit
HOW TO FIX INSTALLATION PLATE
INDOOR UNIT INSTALLATION
1. Engage the slots on the indoor unit to the hooks of
installation plate. Ensure the hooks are properly seated
on the installation plate by moving it left and right.
2. Fix the screws to the holes on the hooks of installation
plate, as illustrated below.
The mounting wall is strong and solid enough to prevent it from
the vibration.
The centre of installation plate should be at more than 452 mm
at right and left of the wall.
The distance from installation plate edge to ground should
more than 1300 mm.
• Always mount the installation plate horizontally by aligning
the marking thread and using a level gauge.
• Mount the installation plate on the wall with 3 sets of plug,
bolt and washer (all non-supply) with size M8.
11.3.2.
TO DRILL A HOLE IN THE WALL
AND INSTALL A SLEEVE OF
PIPING
1. Insert the piping sleeve to the hole.
2. Fix the bushing to the sleeve.
3. Cut the sleeve until it extrudes about 15 mm from the
wall.
11.3.3.2. Water Piping Installation
• Water inlet and water outlet on indoor unit are used for
connection to water circuit. Please request a licensed
technician to install this water circuit.
• This water circuit must comply with all relevant European
and national regulations, i.e. IEC/EN 61770.
• Be careful not to deform the piping with excessive force
when doing piping connection job.
• Do not install any valve between indoor unit and water piping
to avoid accidental closure of water supply to the indoor unit.
• Use 3/4” nut for both water inlet and outlet connection and
clean all tubes with tap water before install.
• Cover the pipe end to prevent dirt and dust when inserting it
through a wall.
• Choose proper sealer which can withstand the pressures
and temperatures of the system.
• Connect water inlet connector of indoor unit (indicate with
“IN”) to boiler tank outlet. Then, connect water outlet
connector of indoor unit (indicate with “OUT”) to boiler tank
inlet. Fail to connect the tube appropriately might causing
the indoor unit malfunction.
• Be sure to use two spanners to tighten the connection.
Further tighten the nuts with torque wrench in specified
torque as stated in the table.
• If non-brass metallic piping is used for installation, make
sure to insulate the pipes to prevent galvanic corrosion.
• Make sure to insulate the water circuit pipes to prevent
reduction of heating capacity.
• After installation, check the water leakage condition in
connection area during test run.
When the wall is hollow, please be sure to use the
sleeve for tube assembly to prevent dangers caused
by mice biting the connecting cable.
4. Finish by sealing the sleeve with putty or caulking
compound at the final stage.
28
11.3.3.4. Drain Hose Installation
• Use inner diameter 15 mm drain hose in the market.
• This hose must to be installed in a continuosly downward
direction and in a frost-free environment.
• Guides this hose’s outlet to outdoor only.
• Do not insert this hose into sewage hose or cleaning hose
that may generate ammonia gas, sulfuric gas etc.
• If necessary, use hose clamp to further tighten the hose at
drain hose connector to prevent it leakage.
• The water may drip from drain hose. Therefore must ensure
the outlet of the hose is always not closed or blocked.
Model
Nut size (Torque)
Water
SDH07C3E5/UD07CE5,
SDH09C3E5/UD09CE5
3/4” [58.8 N m]
O
Do not over tighten, over tightening cause water leakage.
11.3.3.3. Indoor Unit
Installation
Refrigerant
Pipe
1. Please make flare after inserting flare nut (located at joint
portion of tube assembly) onto the copper pipe. (In case
of using long piping)
2. Do not use pipe wrench to open refrigerant piping. Flare
nut may be broken and cause leakage. Use proper
spanner or ring wrench.
3. Connect the piping:
• Align the center of piping and sufficiently tighten the flare
nut with fingers.
• Further tighten the flare nut with torque wrench in
specified torque as stated in the table.
Model
shall be approved polychloroprene sheathed 4 x 6.0 mm2
flexible cord, type designation 60245 IEC 57 or heavier
cord.
• Ensure the colour of wires of outdoor unit and the
terminal Nos. are the same to the indoor unit’s
respectively.
• Earth lead wire shall be longer than the other lead wires
as shown in the figure for the electrical safety in case of
the slipping out of the cord from the anchorage.
2. Cable connection to the power supply through isolating
device (Disconnecting means).
• Isolating device (Disconnecting means) should have
minimum 3.0 mm contact gap.
• Connect the approved polychloroprene sheathed power
Liquid
5/8” [65 N m]
O
CONNECT THE CABLE TO THE
INDOOR UNIT
1. Connecting cable between indoor unit and outdoor unit
Piping size (Torque)
Gas
SDH07C3E5/UD07CE5,
SDH09C3E5/UD09CE5
11.3.4.
1/4” [18 N m)
O
Do not over tighten, over tightening cause gas leakage.
• In case of using long piping, please make flare after
inserting flare nut (locate at joint portion of tube
assembly) onto the copper pipe.
supply 1 cable (3 x 4.0 mm2 or 6.0 mm2), type
designation 60245 IEC 57 or heavier cord to the terminal
board, and connect the other end of the cable to isolating
device (Disconnecting means).
3. To avoid cable harmed by sharp edge, cables must go
through bushing (located at the bottom of indoor unit)
before carry out electrical connection. The bushing must
be used and must not take off.
29
Connecting with external tank unit (optional)
1. All connections should follow to the local national wiring
standard.
2. Maximum output power of booster heater should be ≤ 3
kW.
3. Sensor should be resistance type, please refer to Graph
5.1 for the characteristic and details of sensor.
mm2)
* note: - sensor's cable should be (2 x min 0.3
double insulation sheathed type with insulation strength
of min 30V.
4. 3-Way Valve should be of spring type (refer to diagram
5.2). Valve's cord or cable must be (2 x min 0.5 mm2), of
type designation 60245 IEC 57 or heavier cord, or
similarly double insulation sheathed.
* note: - should be CE compliance component.
- it should be directed to heating mode when it is
OFF.
- maximum load for the valve is 3VA.
5. Ext thermal controller should be of bimetal type.
(connection refer to diagram 5.3) Its cord or cable must
be (2 x min 0.5 mm2), of type designation 60245 IEC 57
or heavier cord, or similarly double insulation sheathed.
* note: - should be CE compliance component.
- maximum operating current should be less than
3Arms.
30
Terminal screw
Tightening torque N cm {kgf cm}
M4
157~196 {16~20}
M5
196~245 {20~25}
O
O
11.3.4.1. Wire Stripping and Connecting Requirement
11.3.4.2. Connecting Requirement
• The equipment's power supply 1 complies with IEC 61000-3-12 provided that the short-circuit power Ssc is greater than or equal
to 885.92kW (for SDH07C3E5/UD07CE5 & SDH09C3E5/UDH09CE5) at the interface point between the user’s supply and the
public system. It is the responsibility of the installer or user of the equipment to ensure, by consultation with the distribution
network operator if necessary, that the equipment is connected only to a supply with a short-circuit power Ssc greater than or
equal to 885.92kW.
• The equipment's power supply 1 shall be connected to a suitable supply network, having service current capacity ≥100A per
phase. Please liaise with supply authority to ensure that the service current capacity at the interface point is sufficient for the
installation of the equipment.
• As for the equipment's power supply 2, it also need to comply with EN 61000-3-12.
• This equipment's power supply 2 shall be connected to a suitable supply network, with the following maximum permissible
system impedance Zmax at the interface of point for models:
WH-SDH07C3E5/WH-UD07CE5 & WH-SDH09C3E5/WH-UD09CE5: 0.355 ohm.
Please liaise with supply authority to ensure that the power supply 2 is connected only to a supply of that impedance or less.
31
11.4. Outdoor Unit
11.4.1.
INSTALL THE OUTDOOR UNIT
• After selecting the best location, start installation according
to Indoor/Outdoor Unit Installation Diagram.
1. Fix the unit on concrete or rigid frame firmly and
horizontally by bolt nut (ø10 mm).
2. When installing at roof, please consider strong wind and
earthquake. Please fasten the installation stand firmly
with bolt or nails.
11.4.2.
CONNECTING THE PIPING
Piping size (Torque)
Model
SDH07C3E5/UD07CE5,
SDH09C3E5/UD09CE5
Gas
Liquid
5/8” [65 N m]
O
1/4” [18 N m)
O
Connecting The Piping To Outdoor Unit
Decide piping length and then cut by using pipe cutter. Remove burrs from cut edge. Make flare after inserting the flare nut (locate
at valve) onto the copper pipe.
Align center of piping to valves and then tighten with torque wrench to the specified torque as stated in the table.
Local pipes can project in any of four directions.
• Make holes in the pipe panels for the pipes to pass through.
• Be sure to install the pipe panels to prevent rain from getting
inside the outdoor unit.
[Removing the service panel].
(1) Remove the two mounting screws.
(2) Slide the service panel downward to release the pawls.
After this, pull the service panel toward you to remove it.
CUTTING AND FLARING THE PIPING
1. Please cut using pipe cutter and then remove the burrs.
2. Remove the burrs by using reamer. If burrs is not removed, gas leakage may be caused.
Turn the piping end down to avoid the metal powder entering the pipe.
3. Please make flare after inserting the flare nut onto the copper pipes.
32
11.4.3.
EVACUATION OF THE EQUIPMENT
WHEN INSTALLING AN AIR-TO-WATER HEATPUMP, BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND
PIPES in the following procedure.
1. Connect a charging hose with a push pin to the Low side of a charging set and the service port of the 3-way valve.
• Be sure to connect the end of the charging hose with the push pin to the service port.
2. Connect the center hose of the charging set to a vacuum pump with check valve, or vacuum pump and vacuum pump
adaptor.
3. Turn on the power switch of the vacuum pump and make sure that the needle in the gauge moves from 0 cmHg (0 MPa) to
-76 cmHg (-0.1 MPa). Then evacuate the air approximately ten minutes.
4. Close the Low side valve of the charging set and turn off the vacuum pump. Make sure that the needle in the gauge does not
move after approximately five minutes.
Note: BE SURE TO FOLLOW THIS PROCEDURE IN ORDER TO AVOID REFRIGERANT GAS LEAKAGE.
5. Disconnect the charging hose from the vacuum pump and from the service port of the 3-way valve.
6. Tighten the service port caps of the 3-way valve at a torque of 18 N m with a torque wrench.
7. Remove the valve caps of both of the 2-way valve and 3-way valve. Position both of the valves to “OPEN” using a hexagonal
wrench (4 mm).
8. Mount valve caps onto the 2-way valve and the 3-way valve.
• Be sure to check for gas leakage.
O
If gauge needle does not move from 0 cmHg (0 MPa) to -76 cmHg (-0.1 MPa), in step above take the following measure:
• If the leak stops when the piping connections are tightened further, continue working from step .
• If the leak does not stop when the connections are retightened, repair the location of leak.
• Do not release refrigerant during piping work for installation and reinstallation. Take care of the liquid refrigerant, it may cause
frostbite.
11.4.4.
CONNECT THE CABLE TO THE OUTDOOR UNIT
(FOR DETAIL REFER TO WIRING DIAGRAM AT UNIT)
1. Remove the control board cover from the unit by loosening the screw.
2. Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 4 × (4.0or 6.0 mm2) flexible cord, type designation 60245 IEC 57 or heavier cord.
3. Secure the cable onto the control board with the holder (clamper).
33
4. Select required direction and apply protective bushing provided in accessories to protect cables from sharp edges.
5. Once all wiring work has been completed, tie the wires and cord together with the binding strap so that they do not touch other
parts such as the compressor and bare copper pipes.
6. Install back the control board cover.
11.4.4.1. Wire Stripping and Connecting Requirement
• Same as indoor requirement. For details please refer the diagram on AIR-TO-WATER HEATPUMP INDOOR UNIT, section
11.3.4. (CONNECT THE CABLE TO THE INDOOR UNIT)
11.4.5.
PIPE INSULATION
1. Please carry out insulation at pipe connection portion as mentioned in Indoor/Outdoor Unit Installation Diagram. Please wrap
the insulated piping end to prevent water from going inside the piping.
2. If drain hose or connecting piping is in the room (where dew may form), please increase the insulation by using POLY-E
FOAM with thickness 6 mm or above.
11.4.6.
Disposal of Outdoor Unit Drain Water
• If a drain elbow is used, the unit should be placed on a stand which is taller than 5 cm.
• If the unit is used in an area where temperature falls below 0°C for 2 or 3 days in succession, it is recommended not to use a
drain elbow, for the drain water freezes and the fan will not rotate.
34
12 Operation and Control
12.1. Basic Function
Inverter control, which equipped with a microcomputer in determining the most suitable operating mode as time passes,
automatically adjusts output power for maximum comfort always. In order to achieve the suitable operating mode, the
microcomputer maintains the set temperature by measuring the temperature of the environment and performing temperature
shifting. The compressor at outdoor unit is operating following the frequency instructed by the microcomputer at indoor unit that
judging the condition according to internal water setting temperature and water outlet temperature.
12.1.1. Internal Water Setting Temperature
Once the operation starts, control panel setting temperature will be taken as base value for temperature shifting processes.
These shifting processes are depending on the Air-to-Water Heatpump settings and the operation environment. The final shifted
value will be used as internal water setting temperature and it is updated continuously whenever the electrical power is supplied
to the unit.
12.1.2. Heating Operation
12.1.2.1. Thermostat control
• Compressor is OFF when Water Outlet Temperature - Internal Water Setting Temperature > 2°C for continuously 3 minutes.
• Compressor is ON after waiting for 3 minutes, if the Water Outlet Temperature - Water Inlet Temperature (temperature at
thermostat OFF is triggered) < -3°C.
12.1.3. Tank Mode Operation
Control contents:
• 3 ways valve direction
- 3 ways valve switch and fix to tank side.
• Heat Pump Thermostat characteristic
- Water set temperature = tank set temperature or [55°C] whichever lower.
- Heat Pump Water Outlet set temperature is set to Maximum (55°C) at tank mode
i. Case 1
- THERMO OFF TEMP :
1. THERMO OFF TEMP = Water set temperature + [+2°C].
2. Tank temperature > THERMO OFF TEMP for continuous 3 minutes, heat pump OFF and water pump OFF.
- THERMO ON TEMP :
1. THERMO ON TEMP = Water set temperature + [-3°C].
2. When detect tank temperature < THERMO ON TEMP, water pump ON for 3 minute then heat pump ON.
35
ii. Case 2
- Heat pump THERMO OFF TEMP:
1. Heat pump THERMO OFF TEMP = 55°C + [+2°C].
2. Water outlet temperature > Heat pump THERMO OFF TEMP for continuous 3 minutes, heat pump OFF and water
pump OFF.
- Heat pump THERMO ON TEMP:
1. Heat pump THERMO ON TEMP = Water inlet during thermo off time + [-3°C].
2. Water pump ON back when tank temp. < tank temp. when thermo off + [-3°C].
3. Heat pump ON back when water outlet temperature < Heat pump THERMO ON TEMP. and water pump ON for 3
minutes.
• Booster heater control
- Booster heater turn On and OFF follow normal operation.
• Others
- Indoor backup heater cannot be On during tank mode only.
TANK MODE Operation
12.1.4. Heat + Tank Mode Operation
• Heat + Tank are meant to control both the Tank and PanelHeater.
There are two setting available;
- Heating Priority is Set.
- Heating Priority is NOT Set.
a. When Heating Priority set
Heat Pump is used to heat-up the Panel Heater while Tank is heat-up by Booster Heater.
1. Heat Pump Operation follow normal heating mode.
2. Back-Up heater operation follow normal heater operation.
3. 3 way valve is fix to Heating Side.
4. Booster Heater operation enabled.
b. When Heating Priority not set
Heating side and Tank side will switch alternatively according to the time set by control panel.
1. Heat pump operation control:
a. During heating heat-up interval
- Follow normal heating operation.
- Always detect the tank temperature after heating heat-up interval. Switch only to tank heat-up interval and start
counting tank heat-up timer when tank temperature < THERMO ON TEMP.
b. During tank heat-up interval
- Water set temperature = tank set temperature or [55°C] whichever lower.
- THERMO OFF TEMP:
~ THERMO OFF TEMP = Water set temperature + [+2°C] or water inlet > 52°C.
36
~ Tank temperature > THERMO OFF TEMP for continuous 3 minutes, switch 3 ways valve to heating side but
heat pump continue operate. End Tank heat-up interval and start count heating heat-up interval.
- THERMO ON TEMP :
~ THERMO ON TEMP = Water set temperature + [-3°C].
~ When tank heat-up interval end earlier due to water outlet > THERMO OFF TEMP for continuous 90 seconds.
Set next THERMO ON TEMP = tank temperature when thermo off + [-3°C].
2. Backup heater control:
a. During heating heat up interval
- Follow normal backup heater control operation.
b. During tank heat-up interval
- Backup heater cannot On during this interval.
3. 3 ways valve control:
a. 3 ways valve switch to heating side during heating heat-up interval, and switch to tank side during tank heat-up
interval. Both mode will switch alternatively.
b. 3 ways valve will switch to heating side even during tank heat-up interval when tank temperature higher than the
THERMO OFF temperature for continuous 3 minutes.
4. Booster heater control:
a. During heating heat-up interval
- Booster heater ON/OFF according to booster heater operation control.
b. During tank heat-up interval
- Once switch from heating heat-up interval to tank heat-up interval, turn off the booster heater and start counting
the BOOSTER HEATER DELAY TIMER.
- Booster heater turn ON after BOOSTER HEATER DELAY TIMER fufil and tank temperature lower than
HEATER ON TEMP.
- BOOSTER HEATER DELAY TIMER is clear when switch to heating heat-up interval.
Heating Priority Not Set when HEAT & TANK MODE
37
12.1.5. Setting Water Outlet Temperature For Heat Mode
• The set temperature define the parameters for the outdoor ambient temperature dependent operation of the unit. Where by the
internal water setting temperature is determined automatically depending on the outdoor temperature. The colder outdoor
temperatures will result in warmer water and vice versa. The user has the possibility to shift up or down the target water
temperature by control panel setting.
• Outdoor temperature is updated every 30 minutes when operation ON.
12.1.5.1. Heating Mode Operation Time Chart
Example
1. 3 ways valve control:
• 3 ways valve switch and fix to heating side
2. Heat pump operate follow normal heating operation.
3. Backup heater operate follow normal operation.
38
12.1.6. Water Temperature Thermo Shift Setting
• Switchs are ignored during “PUMPDW” = ON.
• Switchs are ignored during “STATUS” = ON.
•
•
•
•
“ ”, “ ”, “SELECT” switch are ignored if “SETTING” = OFF.
“CANCEL” switch is ignored if “SETTING” = OFF & “STATUS” = OFF.
If “SET” Switch pressed for lesss than 5secs, immediately enter water temperature shift setting mode.
Once enter this setting mode, “SETTING” display is ON.
This setting mode is used to easily shift the target water outlet temperature.
12.1.7. Outdoor Fan Motor Operation
Outdoor fan motor is adjusted according to operation condition. It starts when compressor starts operation and it stops 30 seconds
after compressor stops operation.
39
12.2. Water Pump
12.2.1. Water Pump Control
1. Once the indoor unit is ON, the water pump will be ON immediately and no error judgement for 9 minutes. However, during
this 9 minutes operation, if there is any abnormality cause at outdoor or malfunction, the compressor should be OFF
immediately and restart delay after 3 minutes.
2. The system will start checking on the water flow level after operation start for 9 minutes. If water flow level is detected low
continuously for 1 minute, the water pump and compressor will be OFF permanently and OFF/ON control panel LED will blink
(H62 error occurs).
3. The water pump will remain ON when compressor OFF due to thermostat OFF.
12.3. Pump Down Operation
Purpose
Ensure the pump down operation when relocating or disposing of the unit. The pump down operation will extract all
refrigerant from the piping into the outdoor unit.
1.
2.
3.
4.
Make sure the OFF/ON control panel LED is OFF (no operation).
Press the Pump Down button to start the pump down operation.
No low pressure protection error during pump down operation and 3-way valve will be shift to heating side.
Press OFF/ON button to stop the pump down operation.
12.4. Flow Switch
12.4.1. Flow Switch Control
1. The water flow switch serve as an overload protector that shuts down the unit when the water level is detected to be low.
2. Detection is Lo (0V) when there is no water flow, and detection is Hi (5V) when there is water flow.
40
12.5. Force Heater Mode Operation
The backup heater also serves as backup in case of malfunctioning of the outdoor unit.
1. Make sure the OFF/ON control panel LED is OFF (no operation).
2. Press the Force button to start the force heater mode operation.
3. During force heater mode, all other operations are not allowed.
4. Press OFF/ON button to stop the force heater mode operation.
12.6. Indoor Unit Safety
12.6.1. Indoor Unit Safety Control
1. When water pump is ON, the system will start checking flow switch status (ON/OFF).
2. If the flow switch ON for 10 seconds, the system will check on the water inlet temperature for 10 seconds.
If the water inlet temperature not exceeds 80°C, the water pump shall be continuously running with normal mode.
If the water inlet temperature exceeds 80°C for continuously 10 seconds, the water pump will be OFF immediately.
3. After water pump OFF for more than 10 minutes, it will be ON back and the indoor unit safety control checking is restarted.
12.7. Auto Restart Control
1. When the power supply is cut off during the operation of Air-to-Water Heatpump, the compressor will re-operate after power
supply resumes.
41
12.8. Indication Panel
LED
Operation
Color
Green
Light ON
Operation ON
Light OFF
Operation OFF
Note:
• If Operation LED is blinking, there is an abnormality operation occurs.
12.9. Indoor Back-Up Heater Control
12.9.1. Indoor Electric Heater control
1. Normal Heating Mode
• Heater On condition:
a. Heater switch is ON
b. After Heatpump thermo ON for [15] mins
c. After water pump operate [9] mins
d. Outdoor air temperature < Outdoor set temperature for heater
e. When water outlet temperature < Water set temperature + [-8°C]
f. [20] minutes since previous Backup heater Off
* When heatpump cannot operate due to error happens during normal operation, heater will go into force mode
automatic
* Heater need to operate during deice operation
• Heater Stop Condition:
a. When outdoor set temperature > outdoor set temperature + [+2°C] for continuous 15 secs OR
b. When water out temp> water set temperature + [-2°C] for continuous 15 secs OR
c. Heater switch is Off OR
d. Heat pump thermo-off or OFF condition
2. Force Heater Mode
• Heater On Condition:
a. After water pump operate [9] mins
b. When water outlet temperature < water set temperature + [-8°C]
c. [20] minutes since previous Backup heater Off
• Heater Stop condition
a. Force mode off OR
b. When water outlet temperature > water set temperature + [-2°C] for continuous 15 secs
* Do not operate heater at the following situation
1. Water outlet temperature sensor, and water inlet sensor abnormal
2. Flow switch abnormal
3. Circulation pump stop condition
4. During Heat pump switch to tank side
42
12.10. Tank Booster Heater Control
12.10.1. Tank booster heater control
Heating operation condition:
1. Booster heater Turn On condition:
• After BOOSTER HEATER DELAY TIMER fulfil during heat pump startup time in tank mode, or during switching from heating
heat-up interval to tank heat-up interval in heat+tank mode (heating priority not set).
• Tank temperature < tank set temperature + [+2°C],
• 20 minutes since previous heater off.
* BOOSTER HEATER DELAY TIMER is clear when tank heat-up interval end.
2. Booster heater Turn Off condition:• Tank temperature > tank set temperature + [-5°C] for continuous 15 sec
• When BOOSTER HEATER DELAY TIMER start count after switch from heating heat-up interval to tank heat-up interval
* DELAY TIMER can be set by control panel.
12.11. Three Way Valve Control
• Purpose:
- 3 ways valve is used to change flow direction of hot water from heat pump between heating side and tank side
• Control contents:
1. 3 ways valve switch Off:
• During 3 ways valve switch Off time, the hot water will provide heat capacity to heating side.
2. 3 ways valve switch On:
• During 3 ways valve switch On time, the hot water will provide heat capacity to tank side.
3. Stop condition:
• During stop mode, 3 ways valve will be in switch off position
12.12. Sterillization Mode
1. During Sterillization mode, Tank will be heat up to the Sterillize Set temperature for a certain period of time, also set by
controller.
2. The function can only be set on timer to operate once in a week.
3. It will be cancelled even when the temperature is not reached after 4 hours.
4. When tank mode is OFF or disabled, sterillization is cancelled.
43
13 Protection Control
13.1. Protection Control For All Operations
13.1.1. Time Delay Safety Control
1. The compressor will not start for three minutes after stop of operation.
13.1.2. 30 Seconds Forced Operation
1. Once the compressor starts operation, it will not stop its operation for 30 seconds.
2. However, it can be stopped using control panel at indoor unit.
13.1.3. Total Running Current Control
1. When the outdoor running current exceeds X value, the compressor frequency will decrease.
2. If the outdoor running current does not exceed X value, the compressor frequency will return to normal operating frequency.
3. If the outdoor running current continue to increase till exceed Y value, compressor will stop, and if this occurs 3 times within
20 minutes, system will stop operation and OFF/ON control panel LED will blink (F16 error occurs).
07C
Operation Mode
Heating
09C
X (A)
Y (A)
X (A)
Y (A)
20.9
27.9
22.7
27.9
13.1.4. IPM (Power transistor) Prevention Control
A. Overheating Prevention Control
1. When the IPM temperature rises to 95°C, compressor will stop immediately.
2. Compressor will restart delay 3 minutes when the IPM temperature decreases to 90°C.
If this condition repeats continuously 3 times within 30 minutes, system will stop operation and OFF/ON control panel LED will
blink (F22 error occurs).
B. DC Peak Current Control
1. When the current to IPM exceeds set value of 30.0 ± 5.0 A, compressor will stop. Compressor will restart after three minutes.
2. If the set value exceeds again for more than 30 seconds after the compressor restarts, operation will restart after two minutes.
3. If the set value exceeds again for within 30 seconds after the compressor restarts, operation will restart after one minute. If
this condition repeats continuously for seven times, system will stop operation and OFF/ON control panel LED will blink (F23
error occurs).
13.1.5. Compressor Overheating Prevention Control
• The compressor operating frequency is regulated in accordance to compressor tank temperature as shown in below figures.
When the compressor tank temperature exceeds 112°C, compressor will stop, and if this occurs 4 times within 30 minutes,
system will stop operation and OFF/ON control panel LED will blink (F20 error occurs).
13.1.6. Low Frequency Protection Control 1
• When the compressor continuously operates at frequency lower than 25 Hz for 240 minutes, the operation frequency will change
to 24 Hz for 2 minutes.
44
13.1.7. Low Frequency Protection Control 2
• When all the below conditions comply, the compressor frequency will change to lower frequency.
Temperature, T, for:
Heating
Outlet water (°C)
T < 14 or T
48
Outdoor air (°C)
T < 4 or T
24
Indoor heat exchanger (°C)
T
0
13.1.8. High pressure sensor control
• Purpose:
- To protect the system operation.
• Detection period:
- After compressor on for 5 minutes.
• Detection conditions:
- When abnormal high voltage detection, 5V or when open circuit detection 0V for 5 seconds continuously.
• After detection:
- When abnormality is detected continue 5 seconds, unit stop operation.
- OFF/ON control panel LED will blink (H64 error occurs).
13.1.9. Outside Temperature Current Control
13.1.10. Crank case heater control
• Purpose:
- For compressor protection during low outdoor ambient operation (during heating low temperature operation).
• Control content:
a. Trigger heater START conditon
• when the outdoor air temperature is 4°C or below, and discharge temperature is 11.6°C or below.
b. Resetting heater STOP condition
1. when the outdoor air temperature exceeds entry condition (6°C)
2. when the discharge temperature exceeds entry condition (18.8°C)
13.2. Protection Control For Heating Operation
13.2.1. Outdoor Air Temperature Control
The maximum current value is regulated when the outdoor air temperature rises above 14°C in order to avoid compressor
overloading.
13.2.2. Deice Operation
When outdoor pipe temperature and outdoor air temperature is low, deice operation start where outdoor fan motor stop.
45
14 Servicing Mode
14.1. Test Run
1. Fill up the boiler tank with water. For details refer to boiler tanks installation instruction and operation instruction.
2. Set ON to the indoor unit and RCCB. Then, for control panel’s operation please refers to air-to-water heatpump’s operation
instruction.
3. For normal operation, pressure gauge reading should be in between 0.05 MPa and 0.2 MPa.
If necessary, adjust the water pump speed accordingly to obtain normal water pressure operating range. If adjust water pump
speed cannot solve the problem, contact your local authorized dealer.
14.2. Proper Pump Down Procedure
1. Make sure the OFF/ON control panel LED is OFF (no operation).
2. Press the “PUMPDW” switch on control panel to begin PUMP DOWN mode. Operate the system in PUMP DOWN mode for
10 ~ 15 minutes.
3. After 10-15 minutes, (after 1 or 2 minutes in case very low ambient temperatures (< 10°C)), fully close 2 way valve.
4. After 3 minutes, fully close 3 way valve.
5. Press the “OFF/ON” switch on control panel to stop PUMP DOWN mode.
6. Remove the refrigerant piping.
14.3. How To Adjust Water Flow Rate
• The water flow rate can be adjusted with select the water pump speed on the water pump. The default setting is high speed (III).
Adjust it to moderate speed (II) and slow speed (I) if necessary (e.g. reduce the noise of running water).
Below graph shown the external static pressure (kPa) versus water flow rate (l/min).
• Flow rate characteristic of indoor unit is as per above mentioned.
14.4. Expansion Vessel Pre Pressure Checking
• Expansion Vessel with 10L air capacity and initial pressure of 1 bar is installed in this indoor unit.
• Total amount of water in system should be below 200L.
(Note: This amount of water is not include the tank unit volume)
• If total amount of water is over 200L, please add expansion vessel.
• Please keep the installation height difference of system water circuit within 7m.
(Inner volume of same indoor unit is about 5L)
46
15 Maintenance Guide
In order to ensure optimal performance of the unit, checks and inspections on the unit and the field wiring must be carried out
regularly. Please request a licensed technician for carry out maintenance job.
Before carried out any maintenance or repair work, and removing the front plate of heat exchanger unit, always switch off all power
supply (i.e. indoor unit power supply, heater power supply and sanitary tank power supply).
Below checks must be carried out at least once a year.
1. Water pressure
Water pressure should not lower than 0.05 MPa (with inspects the pressure gauge). If necessary add tap water into boiler
tank. Refer to boiler tank installation instruction for details on how to add water.
2. Water filter
Clean the water filter in regularly basic.
• Water filter is located inside the tube connector which is below water pump. (Refer to figure below)
• Use spanner to detach the water pump’s bottom nut.
• Take out the filter carefully so that not deforms it shape.
• Use tap water only to wash the residue on the filter. If necessary, gently use soft brush only to clean the hard dirt.
• After clean, put it back to the original location and tighten the nut connection with torque wrench.
3. Pressure relief valve
• Check for correction operation of pressure relief valve by turn up the lever to become horizontal. (Refer to figure below)
• If you do not hear a clacking sound (due to water drainage), contact your local authorized dealer.
• Turn down the lever after checking finish.
• In case the water keeps drained out from the unit, switch off the system, and then contact your local authorized dealer.
4. Indoor unit control board area
Thorough visual inspection of the control board and look for defects, i.e. loose connection, melting of wire insulator and etc.
5. RCCB
Ensure the RCCB set to “ON” condition before check RCCB.
Turn on the power supply to the indoor unit.
This testing could only be done when power is supplied to the indoor unit.
Becareful not to touch parts other than RCCB test button when the power is supplied to Indoor Unit. Else, electrical shock may
happen.
• Push the “TEST” button on the RCCB. The lever would turn down and indicate “0” and indicate green colour if it functions
normal.
• Contact authorized dealer if the RCCB malfunction.
• Turn off the power supply to the indoor unit.
• If RCCB functions normal, set the lever to “ON” again after testing finish.
47
6. How to release the trapped air in water circuit
• Turn up the lever to become horizontal. (Refer to figure “Pressure relief valve”). The trapped air will be drained out together
with water. After few seconds, turn down the lever to stop the water drainage.
• Repeat it until the bubbling sound disappear.
7. Reset overload protector
Overload Protector serves the safety purpose to prevent the water over heating. When the Overload Protector trip at high
water temperature, take below steps to reset it.
a. Take out OLP Cover.
b. Use a test pen to push the centre button gently in order to reset the Overload protector.
c. After finish, install back the Overload protector following the reverse order of step a & b.
48
16 Troubleshooting Guide
16.1. Refrigeration Cycle System
In order to diagnose malfunctions, make sure that there are no
electrical problems before inspecting the refrigeration cycle.
Such problems include insufficient insulation, problem with the
power source, malfunction of a compressor and a fan.
The normal pressure of the refrigeration cycle depends on
various conditions, the standard values for them are shown in
the table on the right.
49
16.2. Relationship Between The Condition Of The Air-to-Water Heatpump
Indoor And Outdoor Units And Pressure And Electric Current
Heating Mode
Condition of the
Air-to-Water Heatpump indoor and outdoor
units
Low Pressure
High Pressure
Electric current during operation
Water leakage or insufficient water flow
rate in the system
Excessive amount of refrigerant
Inefficient compression
Insufficient refrigerant
(gas leakage)
Outdoor heat exchange deficiency
Clogged expansion valve or Strainer
• Carry out the measurements of pressure, electric current, and temperature fifteen minutes after an operation is started.
50
16.3. Breakdown Self Diagnosis Function
16.3.1. Self Diagnosis Function (Three Digits Alphanumeric Code)
• When abnormality occur during operation, the system will stop operation, and OFF/ON control panel LED will blink and error
code will display on the control panel Timer display LCD.
• Even error code is reset by turning OFF power supply or by pressing ERROR RESET button, if the system abnormality is still unrepaired, system will again stop operation, and OFF/ON control panel LED will again blink.
• The error code will store in IC memory.
• To check the error code
1. When an abnormality occurs, system will stop operation and OFF/ON control panel LED will blink.
2. Error code of the abnormality will display on the control panel Timer display LCD.
3. To determine the abnormality description, the Error Code Table needs to be referred.
• To display past/last error code
1. Turn ON power supply.
2. Press and hold the CHECK button for more than 5 seconds to enter status mode.
3. Press the SEARCH DOWN/UP button to retrieve past/last error code.
4. Press the CANCEL button or wait 30 seconds to exit status mode.
• To permanently delete error code from IC memory
1. Turn ON power supply.
2. Press and hold the ERROR RESET button for more than 8 seconds till a beep sound is heard.
51
16.4. Error Codes Table
Diagnosis display
Abnormality / Protection control
Abnormality Judgement
H00
H12
No abnormality detected
Indoor/Outdoor capacity unmatched
—
90s after power supply
H15
Continue for 5 sec.
H38
H42
Outdoor compressor temperature sensor
abnormality
Indoor refrigerant liquid temperature
sensor abnormality
Indoor/Outdoor mismatch
Compressor low pressure abnormality
H62
H64
Water flow switch abnormality
Refrigerant high pressure abnormality
Continue for 1 min.
Continue for 5 sec.
H72
H76
Tank sensor abnormal
Indoor - control panel communication
abnormality
Indoor / outdoor abnormal
communication
Indoor/Outdoor wrong connection
Outdoor high pressure overload
protection
Continue for 5 sec.
—
F12
Pressure switch activate
F14
Outdoor compressor abnormal revolution
F15
Outdoor fan motor lock abnormality
F16
Total running current protection
F20
Outdoor compressor overheating
protection
4 times occurrence within 20
minutes
4 times occurrence within 20
minutes
2 times occurrence within 30
minutes
3 times occurrence within 20
minutes
4 times occurrence within 30
minutes
F22
IPM (power transistor) overheating
protection
Outdoor Direct Current (DC) peak
detection
Refrigeration cycle abnormality
3 times occurrence within 30
minutes
7 times occurrence
continuously
2 times occurrence within 20
minutes
Cooling / Heating cycle changeover
abnormality
Pressure switch abnormality
Outdoor air temperature sensor
abnormality
Indoor water inlet temperature sensor
abnormality
Outdoor discharge pipe temperature
sensor abnormality
PFC control
4 times occurrence within 30
minutes
Continue for 1 min.
Continue for 5 sec.
H23
H90
H95
H98
F23
F24
F25
F27
F36
F37
F40
F41
F42
Outdoor heat exchanger temperature
sensor abnormality
Continue for 5 sec.
—
—
> 1 min after starting operation
—
—
Continue for 5 sec.
Continue for 5 sec.
4 times occurrence within 10
minutes
Continue for 5 sec.
52
Primary location to verify
—
• Indoor/outdoor connection wire
• Indoor/outdoor PCB
• Specification and combination table in
catalogue
• Compressor temperature sensor
(defective or disconnected)
• Refrigerant liquid temperature sensor
(defective or disconnected)
• Indoor/Outdoor PCB
• Outdoor pipe temperature sensor
• Clogged expansion valve or strainer
• Insufficient refrigerant
• Outdoor PCB
• Compressor
• Water flow switch
• Outdoor high pressure sensor
(defective or disconnected)
• Tank sensor
• Indoor - control panel
(defective or disconnected)
• Internal / external cable connections
• Indoor / Outdoor PCB
• Indoor/Outdoor supply voltage
• Outdoor high pressure sensor
• Water pump or water leakage
• Clogged expansion valve or strainer
• Excess refrigerant
• Outdoor PCB
• Pressure switch
• Outdoor compressor
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Outdoor PCB
Outdoor fan motor
Excess refrigerant
Outdoor PCB
Compressor tank temperature sensor
Clogged expansion valve or strainer
Insufficient refrigerant
Outdoor PCB
Compressor
Improper heat exchange
IPM (Power transistor)
Outdoor PCB
Compressor
Insufficient refrigerant
Outdoor PCB
Compressor low compression
4-way valve
V-coil
Pressure switch
Outdoor air temperature sensor
(defective or disconnected)
• Water inlet temperature sensor
(defective or disconnected)
• Outdoor discharge pipe temperature
sensor (defective or disconnected)
• Voltage at PFC
• Outdoor heat exchanger temperature
sensor (defective or disconnected)
Diagnosis display
Abnormality / Protection control
F45
Indoor water outlet temperature sensor
abnormality
Outdoor Current Transformer open
circuit
F46
Abnormality Judgement
Continue for 5 sec.
—
53
Primary location to verify
• Water outlet temperature sensor
(defective or disconnected)
• Insufficient refrigerant
• Outdoor PCB
• Compressor low
16.5. Self-diagnosis Method
16.5.1. Compressor Tank Temperature Sensor Abnormality (H15)
Malfunction Decision Conditions:
During startup and operation of heating, the temperatures detected by the compressor tank temperature sensor are used to
determine sensor error.
Malfunction Caused:
1. Faulty connector connection.
2. Faulty sensor.
3. Faulty outdoor unit PCB.
Abnormality Judgment:
Continue for 5 seconds.
54
16.5.2. Indoor Refrigerant Liquid Temperature Sensor Abnormality (H23)
Malfunction Decision Conditions:
During startup and operation of heating, the temperatures detected by the indoor refrigerant liquid temperature sensor are used
to determine sensor error.
Malfunction Caused:
1. Faulty connector connection.
2. Faulty sensor.
3. Faulty indoor unit PCB.
Abnormality Judgment:
Continue for 5 seconds.
55
16.5.3. Compressor Low Pressure Protection (H42)
Error code will not display (no OFF/ON Control Panel LED blinking) but store in EEPROM
Malfunction Decision Conditions:
During operation of heating and after 5 minutes compressor ON, when outdoor pipe temperature below -29°C or above 26°C is
detected by the outdoor pipe temperature sensor.
Malfunction Caused:
1. Dust accumulation on the outdoor unit heat exchanger.
2. Air short circuit at outdoor unit.
3. 2/3 way valve closed.
4. Faulty outdoor unit fan motor.
5. Refrigerant shortage (refrigerant leakage).
6. Clogged expansion valve or strainer.
7. Faulty outdoor pipe temperature sensor.
8. Faulty outdoor unit main PCB.
56
16.5.4. Water Flow Switch Abnormality (H62)
Malfunction Decision Conditions:
During operation of heating, the water flow detected by the indoor water flow switch is used to determine water flow error.
Malfunction Caused:
1. Faulty water pump.
2. Water leak in system.
3. Faulty connector connection.
4. Faulty water flow switch.
5. Faulty indoor unit PCB.
Abnormality Judgment:
Continue for 1 minute (but no judgment for 9 minutes after compressor startup/restart).
57
16.5.5. Outdoor High Pressure Abnormality (H64)
Malfunction Decision Conditions:
During operation of heating, when the outdoor high pressure sensor output signal is 0Vdc or 5Vdc.
Malfunction Caused:
1. Faulty connector connection.
2. Faulty sensor.
3. Faulty outdoor unit PCB.
Abnormality Judgment:
Continue for 5 seconds (but no judgment for 5 minutes after compressor startup/restart).
58
16.5.6. Indoor-Control Panel Communication Abnormality (H76)
Malfunction Decision Conditions:
During standby and operation of heating, indoor-control panel error occur.
Malfunction Caused:
1. Faulty connector connection.
2. Faulty control panel.
3. Faulty indoor unit PCB.
59
16.5.7. Indoor/Outdoor Abnormal Communication (H90)
Malfunction Decision Conditions:
During standby and operation of heating, the data received from outdoor unit in indoor unit signal transmission is checked
whether it is normal.
Malfunction Caused:
1. Faulty outdoor unit PCB.
2. Faulty indoor unit PCB.
3. Indoor-outdoor signal transmission error due to wrong wiring.
4. Indoor-outdoor signal transmission error due to breaking of wire in the connection wires between the indoor and outdoor units.
5. Indoor-outdoor signal transmission error due to disturbed power supply waveform.
Abnormality Judgment:
Continue for 1 minute after operation.
Communication voltage measurement:
60
To determine if outdoor unit PCB or indoor unit PCB is faulty:
1. Start with outdoor terminal.
2. Remove terminal 3 wire.
3. Measure with a multimeter (voltage in DC range).
4. If it is never constant, and outdoor PCB is good fluctuating in between 20-70Vdc, outdoor PCB is in good condition.
16.5.8. Unspecified Voltage between Indoor and Outdoor (H95)
Malfunction Decision Conditions:
The supply power is detected for its requirement by the indoor/outdoor transmission.
Malfunction Caused:
1. Wrong models interconnected.
2. Wrong indoor unit or outdoor unit PCB used.
3. Faulty indoor unit or outdoor unit PCB.
61
16.5.9. Outdoor High Pressure Protection (H98)
Error code will not display (no OFF/ON Control Panel LED blinking) but store in EEPROM
Malfunction Decision Conditions:
During operation of heating, when pressure 4.0 MPa and above is detected by outdoor high pressure sensor.
Malfunction Caused:
1. Faulty water pump.
2. Insufficient water flow rate in system.
3. Water leak in system.
4. Clogged expansion valve or strainer.
5. Excessive refrigerant.
6. Faulty outdoor high pressure sensor.
7. Faulty outdoor unit PCB.
62
16.5.10. Outdoor High Pressure Switch Activate (F12)
Malfunction Decision Conditions:
During operation of heating, when pressure 4.5 MPa and above is detected by outdoor high pressure switch.
Malfunction Caused:
1. Faulty water pump.
2. Insufficient water flow rate in system.
3. Water leak in system.
4. Clogged expansion valve or strainer.
5. Excessive refrigerant.
6. Faulty outdoor high pressure sensor and switch.
7. Faulty outdoor unit PCB.
Abnormality Judgment:
Continue 4 times in 20 minutes.
63
16.5.11. Compressor Rotation Failure (F14)
Malfunction Decision Conditions:
A compressor rotation failure is detected by checking the compressor running condition through the position detection circuit.
Malfunction Caused:
1. Compressor terminal disconnect.
2. Faulty outdoor unit PCB.
3. Faulty compressor.
Abnormality Judgment:
Continue 4 times in 20 minutes.
64
16.5.12. Outdoor Fan Motor (DC Motor) Mechanism Locked (F15)
Malfunction Decision Conditions:
The rotation speed detected by the Hall IC of the fan motor during fan motor operation is used to determine abnormal fan motor
(feedback of rotation > 2550rpm or < 50rpm).
Malfunction Caused:
1. Operation stop due to short circuit inside the fan motor winding.
2. Operation stop due to breaking of wire inside the fan motor.
3. Operation stop due to breaking of fan motor lead wires.
4. Operation stop due to fan motor Hall IC malfunction.
5. Operation error due to faulty outdoor unit PCB.
Abnormality Judgment:
Continue 2 times in 30 minutes.
65
16.5.13. Input Over Current Detection (F16)
Malfunction Decision Conditions:
During operation of heating, when outdoor current above 28.0A is detected by the current transformer (CT) in the outdoor unit
PCB.
Malfunction Caused:
1. Excessive refrigerant.
2. Faulty outdoor unit capacitor PCB.
3. Faulty outdoor unit PCB.
Abnormality Judgment:
Continue 3 times in 20 minutes.
66
16.5.14. Compressor Overheating (F20)
Malfunction Decision Conditions:
During operation of heating, when temperature above 112°C is detected by the compressor tank temperature sensor.
Malfunction Caused:
1. Faulty compressor tank temperature sensor.
2. 2/3 way valve closed.
3. Refrigerant shortage (refrigerant leakage).
4. Clogged expansion valve or strainer.
5. Faulty outdoor unit PCB.
6. Faulty compressor.
Abnormality Judgment:
Continue 4 times in 30 minutes.
67
16.5.15. IPM Overheating (F22)
Malfunction Decision Conditions:
During operation of heating, when temperature 95°C is detected by the outdoor IPM temperature sensor.
Malfunction Caused:
1. Faulty outdoor unit fan motor.
2. Faulty outdoor unit PCB.
Abnormality Judgment:
Continue 3 times in 30 minutes.
68
16.5.16. Output Over Current Detection (F23)
Malfunction Decision Conditions:
During operation of heating, when DC current above 30.0 ± 5.0A is detected by the IPM DC Peak sensing circuitry in the
outdoor unit PCB.
Malfunction Caused:
1. Faulty outdoor unit PCB.
2. Faulty compressor.
Abnormality Judgment:
Continue for 7 times.
69
16.5.17. Refrigeration Cycle Abnormality (F24)
Malfunction Decision Conditions:
1. During operation of heating, compressor frequency > Fhrated.
2. During operation of heating, running current: 0.65A < I < 1.65A.
3. During operation of heating, indoor pipe temperature — water inlet temperature < 5°C.
Malfunction Caused:
1. Faulty indoor water inlet or indoor pipe temperature sensors.
2. 2/3 way valve closed.
3. Refrigerant shortage (refrigerant leakage).
4. Clogged expansion valve or strainer.
5. Faulty outdoor unit PCB.
6. Poor compression of compressor.
Abnormality Judgment:
Continue 2 times in 20 minutes.
70
16.5.18. Four Way Valve Abnormality (F25)
Malfunction Decision Conditions:
During operation of heating, when temperature below 0°C is detected by indoor pipe temperature sensor.
Malfunction Caused:
1. Faulty sensor.
2. Faulty connector connection.
3. Faulty outdoor unit PCB.
4. Faulty four way valve.
Abnormality Judgment:
Continue 4 times in 30 minutes.
71
16.5.19. Outdoor High Pressure Switch Abnormal (F27)
Malfunction Decision Conditions:
During compressor stop, and outdoor high pressure switch is remain opened.
Malfunction Caused:
1. Faulty connector connection.
2. Faulty switch.
3. Faulty outdoor unit PCB.
Abnormality Judgment:
Continue for 1 minute.
72
16.5.20. Outdoor Air Temperature Sensor Abnormality (F36)
Malfunction Decision Conditions:
During startup and operation of heating, the temperatures detected by the outdoor air temperature sensor are used to determine
sensor error.
Malfunction Caused:
1. Faulty connector connection.
2. Faulty sensor.
3. Faulty outdoor unit PCB.
Abnormality Judgment:
Continue for 5 seconds.
73
16.5.21. Indoor Water Inlet Temperature Sensor Abnormality (F37)
Malfunction Decision Conditions:
During startup and operation of heating, the temperatures detected by the indoor water inlet temperature sensor are used to
determine sensor error.
Malfunction Caused:
1. Faulty connector connection.
2. Faulty sensor.
3. Faulty indoor unit PCB.
Abnormality Judgment:
Continue for 5 seconds.
74
16.5.22. Outdoor Discharge Pipe Temperature Sensor Abnormality (F40)
Malfunction Decision Conditions:
During startup and operation of heating, the temperatures detected by the outdoor discharge pipe temperature sensor are used
to determine sensor error.
Malfunction Caused:
1. Faulty connector connection.
2. Faulty sensor.
3. Faulty outdoor unit PCB.
Abnormality Judgment:
Continue for 5 seconds.
75
16.5.23. Power Factor Correction (PFC) Abnormality (F41)
Malfunction Decision Conditions:
During operation of heating, when the PFC protection circuitry in the outdoor unit main PCB senses abnormal high DC voltage
level.
Malfunction Caused:
1. Power supply surge.
2. Compressor windings not uniform.
3. Faulty outdoor unit PCB.
Abnormality Judgment:
Continue 4 times in 10 minutes.
76
16.5.24. Outdoor Pipe Temperature Sensor Abnormality (F42)
Malfunction Decision Conditions:
During startup and operation of heating, the temperatures detected by the outdoor pipe temperature sensor are used to
determine sensor error.
Malfunction Caused:
1. Faulty connector connection.
2. Faulty sensor.
3. Faulty outdoor unit PCB.
Abnormality Judgment:
Continue for 5 seconds.
77
16.5.25. Indoor Water Outlet Temperature Sensor Abnormality (F45)
Malfunction Decision Conditions:
During startup and operation of heating, the temperatures detected by the indoor water outlet temperature sensor are used to
determine sensor error.
Malfunction Caused:
1. Faulty connector connection.
2. Faulty sensor.
3. Faulty indoor unit PCB.
Abnormality Judgment:
Continue for 5 seconds.
78
16.5.26. Outdoor Current Transformer Open Circuit (F46)
Malfunction Decision Conditions:
A current transformer (CT) open circuit is detected by checking the compressor running frequency ( rated frequency) and CT
detected input current (< 0.65A) for continuously 20 seconds.
Malfunction Caused:
1. CT defective.
2. Faulty outdoor unit PCB.
3. Compressor defective (low compression).
79
17 Disassembly and Assembly Instructions
WARNING
High Voltage are generated in the electrical parts area by the capacitor. Ensure that the capacitor has discharged sufficiently before proceeding
with repair work. Failure to heed this caution may result in electric shocks.
17.1. To Remove Front Plate
Please follow the steps below for take out front plate. Before removing the front plate of indoor unit, always switch off all power
supply (i.e. indoor unit power supply, heater power supply and boiler tank power supply).
1. Remove the 2 mounting screws which located at bottom of the front plate.
2. Gently pull the lower section of the front plate towards you to remove the front plate from left and right hooks.
3. Hold the left edge and right edge of front plate to lift up front plate from hooks.
17.2. To Remove Cabinet
80
17.3. To Remove Pressure Gauge
17.4. To Remove Control Panel
81
17.5. To Remove RCCB
17.6. To Remove Terminal Board Ass’y
82
17.7. To Remove Transformer and Electronic Controller Board
Note: Tool are required for remove the Electronic Controller Board.
Short screw driver
83
17.8. To Remove Pressure Relief Valve, Flow Switch, Water Pump and Bottle
Complete
When reinstall the water pipe, use grease or water at the joining.
When reinstall the water pipe, use grease or water at the joining.
84
When reinstall the water pipe, use grease or water at the joining.
When reinstall the water pipe, use grease or water at the joining.
85
18 Technical Data
18.1. Operation Characteristics
18.1.1. WH-SDH07C3E5 WH-UD07CE5
Heating Characteristics at Different Outdoor Air Temperature
Condition
Outdoor air temperature : 7°C (DBT), 6°C (WBT)
Indoor water inlet temperature : 30°C
Indoor water outlet temperature : 35°C
Piping length : 7m
86
Heating Characteristics at Different Piping Length
Condition
Outdoor air temperature : 7°C (DBT), 6°C (WBT)
Indoor water inlet temperature : 30°C
Indoor water outlet temperature : 35°C
Piping length : 7m
87
18.1.2. WH-SDH09C3E5 WH-UD09CE5
Heating Characteristics at Different Outdoor Air Temperature
Condition
Outdoor air temperature : 7°C (DBT), 6°C (WBT)
Indoor water inlet temperature : 30°C
Indoor water outlet temperature : 35°C
Piping length : 7m
88
Heating Characteristics at Different Piping Length
Condition
Outdoor air temperature : 7°C (DBT), 6°C (WBT)
Indoor water inlet temperature : 30°C
Indoor water outlet temperature : 35°C
Piping length : 7m
89
18.2. Heating Capacity Table
18.2.1. WH-SDH07C3E5 WH-UD07CE5
LWC
30
35
40
45
50
55
Tamb
HC
IP
HC
IP
HC
IP
HC
IP
HC
IP
HC
IP
-15
4.60
1.87
4.60
2.00
4.60
2.19
4.60
2.42
4.55
2.68
4.50
3.00
-7
5.15
1.80
5.15
1.94
5.08
2.14
5.00
2.38
4.90
2.47
4.80
2.67
2
6.70
1.83
6.55
1.98
6.58
2.29
6.60
2.64
6.30
2.90
6.00
3.16
7
7.00
1.43
7.00
1.59
7.00
1.77
7.00
2.12
6.90
2.30
6.80
2.72
25
7.00
0.79
7.00
0.93
6.40
1.03
6.10
1.17
5.90
1.33
5.70
1.49
HC: Heating Capacity (kW)
IP: Power Input (kW)
LWC: Leaving Water Condenser Temperature (°C)
Tamb: Ambient Temperature (°C)
18.2.2. WH-SDH09C3E5 WH-UD09CE5
LWC
30
35
40
45
50
55
Tamb
HC
IP
HC
IP
HC
IP
HC
IP
HC
IP
HC
IP
-15
6.00
2.55
5.90
2.68
5.50
2.82
5.40
3.00
5.20
3.14
5.00
3.33
-7
6.10
2.16
5.90
2.36
5.85
2.63
5.80
2.90
5.80
3.06
5.80
3.22
2
6.80
1.87
6.70
2.16
6.70
2.38
6.60
2.64
6.30
2.90
6.00
3.16
7
9.00
1.93
9.00
2.20
9.00
2.45
9.00
2.81
8.95
3.23
8.90
3.87
25
9.00
1.07
9.00
1.27
8.40
1.40
8.00
1.59
7.80
1.81
7.50
2.03
HC: Heating Capacity (kW)
IP: Power Input (kW)
LWC: Leaving Water Condenser Temperature (°C)
Tamb: Ambient Temperature (°C)
18.3. Hydraulic Pump Performance
90
19 Exploded View and Replacement Parts List
19.1. WH-SDH07C3E5 WH-SDH09C3E5
Note:
The above exploded view is for the purpose of parts disassembly and replacement.
The non-numbered parts are not kept as standard service parts.
91
<Model: WH-SDH07C3E5 WH-SDH09C3E5>
REF. NO.
DESCRIPTION & NAME
QTY.
WH-SDH07C3E5
WH-SDH09C3E5
←
REMARKS
1
BASE PAN
1
CWD521265
2
HOT WATER COIL-COMPLETE
1
CWB90C1031
←
3
TUBE CONNECTOR-COMPLETE
1
CWT29C1041
←
4
FLARE NUT (1/4)
1
CWT251063
←
5
FLARE NUT (5/8)
1
CWT251064
←
6
FILTER
1
CWB511006
←
O
7
PUMP
1
CWB532075
←
O
8
PACKING (O-RING) I.D 32mm
2
CWB811082
←
O
9
PACKING (O-RING) I.D 13.8mm
3
CWB811022
←
10
RETAINING RING D:22mm
3
CWH581007
←
11
WATER FLOW SWITCH
1
CWB621034
←
12
PACKING (O-RING) I.D 21.8mm
3
CWB811040
←
13
RETAINING RING D:32mm
3
CWH581019
←
14
ELECTRONIC CONTROLLER - MAIN
1
CWA73C4599
CWA73C4600
O
15
TERMINAL BOARD ASS'Y
1
CWA28K1198
←
O
16
RESIDUAL CURRENT CIRCUIT BREAKER
2
CWA181005
←
O
17
TRANSFORMER-COMPLETE
1
CWA40C1074
←
O
18
SENSOR-COMPLETE
1
CWA50C2715
←
O
19
REMOTE CONTROL COMPLETE
1
CWA75C3653
←
O
20
PRESSURE GAUGE
1
CWB070001
←
O
21
PRESSURE RELIEF VALVE
1
CWB621011
←
O
22
CABINET
1
CWE001049A
←
23
HANDLE
2
CWE161008
←
24
CABINET FRONT PLATE
1
CWE061154A
←
25
INSTALLING HOLDER
1
CWH361103A
←
26
OPERATING INSTRUCTION
1
CWF567350
←
27
INSTALLATION INSTRUCTION
1
CWF614128
←
28
BOTTLE COMP.
1
CWH90C0010
←
29
HEATER ASS’Y
1
CWA34K1014
←
31
THERMOSTAT
2
CWA151065
←
32
ELECTRONIC CONTROLLER (SURGE)
1
CWA746029
←
33
MAGNETIC RELAY
2
CWA00192
←
35
TERMINAL BOARD ASS’Y
1
CWA28K1211
←
36
TERMINAL BOARD ASS’Y
1
CWA28K1218
←
37
ELECTRO MAGNETIC SWITCH
1
CWA00059
←
38
ELECTROLYTIC CAPACITOR-COMPLETE
1
CWA32C1004
←
39
SOUND PROOF MATERIAL
1
CWG302544
←
(Note)
• All parts are supplied from PHAAM, Malaysia (Vendor Code: 00029488).
• “O” marked parts are recommended to be kept in stock.
92
O
19.2. WH-UD07CE5 WH-UD09CE5
93
94
Note:
The above exploded view is for the purpose of parts disassembly and replacement.
The non-numbered parts are not kept as standard service parts.
95
<Model: WH-UD07CE5 WH-UD09CE5>
REF. NO.
DESCRIPTION & NAME
QTY.
WH-UD07CE5
WH-UD09CE5
←
1
BASE PAN ASS’Y
1
CWD52K1199
2
COMPRESSOR DC 280V
1
5KD240XCC21
←
3
BUSHING-COMPRESSOR MOUNT
3
CWH50055
←
4
NUT FOR COMP. MOUNT.
3
CWH561049
←
4a
PACKING
3
CWB811017
←
6
CONDENSER COMPLETE
1
CWB32C2846
←
7
CRANKCASE HEATER (COMPRESSOR)
1
CWA341043
←
8
DISCHARGE MUFFLER
1
CWB121013
←
10
3-WAYS VALVE (GAS)
1
CWB011251
←
11
4-WAYS VALVE
1
CWB001026J
←
12
2-WAYS VALVE (LIQUID)
1
CWB021330
←
20
SOUND PROOF MATERIAL-COMP.
1
CWG302245
←
REMARKS
O
21
SOUND PROOF MATERIAL
1
CWG302246
←
22
SOUND PROOF BOARD ASS’Y
1
CWH151195
←
23
V-COIL COMPLETE FOR 4-WAYS VALVE
1
CWA43C2169J
←
O
24
V-COIL COMPLETE FOR EXP. VALVE
1
CWA43C2342
←
O
25
SENSOR COMP. (OUTLET & COND. THERMISTOR)
1
CWA50C2652
←
26
SENSOR COMP. (DISCHARGE THERMISTOR)
1
CWA50C2528
←
27
SENSOR COMP. (TANK THERMISTOR)
1
CWA50C2665
←
28
CABINET REAR PLATE CO.
1
CWE02C1058
←
29
CONTROL BOARD ASS’Y
1
CWH10K1100
←
32
TERMINAL BOARD ASS’Y
1
CWA28K1198
←
34
ELECTRONIC CONTROLLER (CAPACITOR)
1
CWA745870
←
O
38
ELECTRONIC CONTROLLER (NOISE FILTER)
1
CWA745745
←
O
44
ELECTRONIC CONTROLLER (MAIN)
1
CWA73C4613R
CWA73C4614R
O
46
REACTOR
2
G0C592J00003
←
48
TERMINAL COVER
1
CWH171039A
←
49
NUT FOR TERMINAL COVER
1
CWH7080300J
←
50
BRACKET FAN MOTOR
1
CWD54K1052
←
50a
SCREW - BRACKET FAN MOTOR
2
CWH551040J
←
54
FAN MOTOR
1
EHDS80C60AC
←
54a
SCREW-FAN MOTOR
4
CWH551040J
←
55
PROPELLER FAN
1
CWH00K1006
←
56
NUT - PROPELLER FAN
1
CWH561051
←
57
CABINET FRONT PLATE
1
CWE061118A
←
58
DISCHARGE GRILLE
1
CWE201073
←
59
CABINET SIDE PLATE
1
CWE04K1019A
←
60
WIRE NET
1
CWD041102A
←
61
CABINET TOP PLATE CO.
1
CWE03C1053
←
66
CABINET FRONT PLATE CO.
1
CWE06C1245
←
67
HANDLE
3
CWE161008
←
68
TUBE ASS’Y (CAPILLARY TUBE)
1
CWT07K1511
←
70
EXPANSION VALVE
1
CWB051029
←
71
PRESSURE SWITCH
1
CWA101007
←
72
ELECTRO MAGNETIC SWITCH
1
CWA001023
←
76
PIPE COVER (FRONT)
1
CWD601074A
←
77
PIPE COVER (BACK)
1
CWD601075A
←
78
STRAINER
2
CWB111024
←
80
HIGH PRESSURE SENSOR
1
CWA50C2570
←
81
ACCESSORY-COMPLETE
1
CWH82C1535
←
82
ACCESSORY CO. (DRAIN ELBOW)
1
CWG87C900
←
O
(Note)
• All parts are supplied from PHAAM, Malaysia (Vendor Code: 00029488).
• “O” marked parts are recommended to be kept in stock.
96
[PHAAM] Printed in Malaysia
SFYW1001 - 00