Hot Water Cylinder
Hydro Unit Outdoor Unit
HWS-802XWHT6-E HWS-1102H-E HWS-1402XWHM3-E HWS-1402H-E
HWS-1501CSHM3-E-UK HWS-2101CSHM3-E-UK HWS-3001CSHM3-E-UK
Contents
Method of Defect Diagnosis
∗ For details, see the schematic
About symbols
∗ Ground wire of class D grounding
About indication
Do not make additional charge of the refrigerant
No modification Do not modify the unit
∗ For details, see the parts price list
∗ Thick gloves such as cotton work gloves
Failure to do so may cause an electric shock
NEW Refrigerant R410A
Safety During Installation and Service
Steel pipe and joint
Installing refrigerant pipe
Copper pipe
Wall thickness of copper pipe
Flare dimension
Flare and precautions
3 Flare processing related dimension for R410A
4 Dimension of flare for R410A and flare nut
5 Tightening torque of flare for R410A Reference values
Flare connecting procedure and precautions
Necessary tools
Tools
General tools Conventional tools are available
Gauge manifold
For refrigerant charging, see the figure below
Recharging of refrigerant
Gauge manifold Outdoor unit Refrigerant cylinder
Cylinder without siphon
Materials of brazing
Brazing of pipes
Flux
Brazing
Robber plug
Prevention of oxidation during brazing
Specifications
Page
Hydro unit
Outside Drawing
HWS-802H-E
HWS-1102H-E, 1402H-E
HWS-1501CSHM3-E-UK
HWS-3001CSHM3-E-UKHWS-2101CSHM3-E-UK
Block of the outdoor unit
Wiring Diagram
Control board
Hot Water Cylinder Unit
HWS-802XWHM3-E, 802XWHT6-E
Key Electric Component Rating
Model name Component name Type name Rating M3-E T6-E
Model name Component name Type name Rating M3-E T6-E T9-E
CAM-MD12TF-15
Component name Type name Rating
US-622KXTMQO-SS
OFF = 125 ± 4 C, on = 90 ± 5 C
Type name Rating
Model name Component name
Thermal cut-out
CSH
Water Heat Exchange Control Board
Outdoor Control Board
P01Red P02White Earth lead wire P09 Black
D503 Green, Outdoor = Hydro
F03 250 V, 10 a
F700250V,3.15A
System Diagram
Diagram
System
Water
Installation example of water circuit
HWS-802XWHM3-E, 802XWHT6-E/802H-E
Refrigeration Cycle System Diagram
HWS-1402XWHM3-E, 1402XWHT6-E, 1402XWHT9-E/1102H-E, 1402H-E
Outdoor unit Hydro unit
Operational Description
Heating Temperature setting
Operation Remote control settings
Hot water supply Temperature setting
Cooling Temperature setting
Heating temperature 20C to 55C
Hot water temperature 40C to 75C
Backup heater control
Hydro unit
Transmit
Cooling temperature 10C to 25C
Outdoor unit
TTW sensor
Operation flow and applicable data, etc
Hot water cylinder unit
TWI
Starts a cooling operation
Pressing the ZONE1, 2 button and then Operation Mode
Pump priority
Zone Operation with heating priority
Simultaneous operations of hot water supply and cooling
HOT Water button set to on HOT Water Boost button set to on
Switches to Hot water Supply operation
Heating side
75C Hot water operation
Anti bacteria Anti Bacteria operation
HOT Water button set to on
Another 30 minutes can be set with FC0B
Supply heater
Night set back Night SET Back operation Operation
35B 30C 25D 20E
Nighttime low-noise operation Operation
Controller set temperature
Hz signal correction
Temperature settings Water outlet temperature
Inverter output change
TC=TWO
TC TWO
Keep
THO
TSCF-2
TSCF-0
Keep TSCF-4
Non-interlocked with the built-in pump
Circulation pump control Hydro Unit
SW3 SW2
Flow rateL/min
SW1
SW3
Automatic restart control
1Piping freeze prevention control
Heating operation Night Set Back
TWO
Piping freeze prevention control
TWI, TWO, THO
TCB-PCMO3E
Hydro Unit Room temperature thermostat control Option
PMV Pulse motor valve control
Current degradation
Settings Yes
Current release control
Main circuit control current
Number of rotation hold
TL C WE tap + 1 tap/20 secs
For 802H-E
Hot water supply and heating fan control
For 1102H-E
For 1402H-E
Inside brackets For 802H-E
Heating operation starts
OFF
Intermittently energized
Not energized
Output equal to 40W
Continuously energized
802H-E 1102H-E, 1402H-E Heating Cooling TC TWO+2 61C
Method of Defect Diagnosis
Procedure of defect diagnosis Remark
About the installation of the temperature sensor
Check the power supply voltage
Matters to be confirmed first
1 Non-defective operation
Procedure of defect diagnosis
Outline of the determination diagram
How to determine from the check code on the remote control
How to cancel a check code on the remote controller
Defect mode detected by the water heat exchange
How to diagnose by error code
2TWO
3TWI
Diagnostic functional operation Number
Diagnostic functional operation Number
Defect mode detected by the outdoor unit
Diagnostic functional operation Number
Diagnostic functional operation Number
Diagnostic functional operation
Defect mode detected by the remote control
Determination and action
A01 Error Pump flow determination
Diagnosis flow chart for each error code
Hydro unit failure detection
Replace flow switch
A02 Error Temperature rise and error short circuit
Replace TWI, TWO, and THO sensors
Yes Water outlet
Start
A03 Error Temperature rise and error short circuit
Yes TTW 85C is detected Replace TTW sensor
A04 Error Freeze prevention control
A05 Error Piping freeze prevention control
Remove waste
Yes Lower set temperature
Water circuit
Place buffer tank
Where frost remains
Yes Raise set temperature
Cooling overload operation
Yes Defrost outdoor unit
Put water into water circuit Recommended 1 2 Bar
Water cycle contains water
Secure water Waste stuck inside Remove waste
A11 Error Release protection operation
TWI sensor is Attach TWI sensor
A12 Error Heating or Hot water supply heater failure
E04 Error
F04 Error TD sensor failure
F03 Error TC sensor failure
F06 Error TE sensor failure
Yes Replace water heat exchange control board
F08 Error to sensor failure
F07 Error TL sensor failure
F10 Error TWI sensor failure
F14 Error TTW sensor failure
F11 Error TWO sensor failure
F17 Error TFI sensor failure
F19 Error THO sensor detach failure
F18 Error THO sensor failure
F23 Error Lo pressure sensor detach failure
F20 Error TFI detach failure
Lo pressure sensor Yes Is detached CN207 When operation
TFI s ensor Is attached to pipe
F30 Error Enhanced IC failure
F29 Error Eeprom failure
L07 Error
L09 Error
Outdoor Unit Failure Detection
Diagnosis procedure for each check code
Is normal Check and correct
Board side Wiring connection
Compressor is normal Yes
Lock compressor Replace it Yes
Communication failure between MCUs
Heat sink temperature sensor TH failure → See F13 details
Check outdoor control board If defective, replace it
Eeprom failure → See F31 details
Power voltage abnormally Yes
Heat sink overheat failure
Deal with short circuit Short circuit, etc Yes
Outdoor control
Is cleared, Blower is not blocked
SW804 SW801
Way valve invert failure
Yes Outdoor fan operates normally Check the same item as
Heating operation
Element Short circuit
Diagram Yes
Power voltage is normal Check wiring 230ACV ±
Correct wiring Replace outdoor board
Replace fan motor
TL sensor connector CN604 is connected
Characteristic table
TL sensor resistance characteristic is normal
Correct TE sensor
TS sensor resistance characteristic is normal
Suction temperature sensor TS failure
100
TC, TWI, TWO, TFI, TTW, TE, TS, to sensors
101
TD, TL sensors
Operation check mode
Operation check by PC board switch
Operation check mode
Rotary Check contents Remark Switch
Brief method for checking the key components
Component name Check procedure
Hydro unit
103
104
Outdoor unit
802H-E 32.6 ± 3.3 Ω
14.8 ± 1.5 Ω
Hydro unit Hydro unit Setting
10Hydro unit and Outdoor Unit Settings
105
106
Hydro unit Function Code Setting
Details First shipment
107
Details Fist shipment
108
Nighttime low-noise end time
109
Trial Operation
Set temperature A40 B35 C30 D25 E20 20 T1
Auto Curve Setting
110
TSC-F
111
Time Setting
Set temperature, day , and time
Scheduled Operation Setting
112
113
Frost Protection Setting
114
Night Operation Setting
115
Anti Bacteria Setting
Nighttime Low-noise Setting
Hot Water Boost Setting
116
Rated Operation Setting
Forced Defrosting Setting
117
118
Display Function of Set Temperature and Other Settings
119
Failure History Calling Function
120
Outdoor unit Outdoor Unit Setting
121
Function and details
122
123
124
Item setting Temperature sensor
Current Compressor PMV openness Operation Pulse Frequency
LED indication
125
Operation when press button switch SW801 is pressed
SW804
126
SW804 Operation when press button switch SW801 is pressed
Work procedure Remarks
11How to Exchange Main Parts
Hydro Unit
127
128
Remote controller cable
Remote
Controller holder
129
Electric parts assembly
Relay board
MgSW
130
131
Exchange parts name Work procedure Remarks
Expansion vessel
Pump
132
Fixing
Board
133
Exchanger inlet pipe so that the wire is place on
Manometer
134
135
136
Outdoor Unit 2-1. HWS-802H-E
137
138
Remove the power source cable from the power
Lead
CN202 Black
139
Fan motor lead Binding tie Compressor lead, Relay connector
Propeller fan Turn it right to loosen
140
Flange nut
Fan motor
141
142
143
Spring
144
Valve body
Pulse motor
145
146
147
Inverter assembly
Heat exchanger
Valve fixing board
Case thermostat, fan motor
148
Reactor lead CN05 White
149
Name Electric parts Reactor Replacement 1Perform the step
Reactor lead
Reactor lead Binding tie Reactor body
Fixing rubber Projection/Refrigerant cycle side Fan motor
150
Compressor nut 3 nuts
151
152
153
Pulse motor valve coil 1. How to remove 1Perform the step
Recess Pulse motor valve body
Positioning Motorized Projection Control valve coil
Inspection items
12Periodic Inspection Items
154
155
13Part Exploded View, Part List
156
157
Outdoor Unit
158
HWS802H-E
002
159
Sensor assembly 701 F6 TS, TE, TD sensor
Inverter Assembly HWS-802H-E
160
TD, TL sensor
161
Outdoor Unit HWS-1102H-E, 1402H-E
162
163
164
Inverter Assembly HWS-1102H-E, 1402H-E
TS, TE, to sensor
43158190
165
Reactor
4316V357
166