- 2 -
Underfloor heating and fan convectors- heating and
cooling
75
Function
75
Installation requirements
75
External heat source
76
Sun
76
Gas
77
Oil
78
Wood
79
Service
Operation control function by the indoor unit
controlle
r
81
Operation control function by the outdoor unit
controller
94
Alarm list
103
Alarm with automatic reset
103
Temperature limiter alarm
103
HM270V alarm
103
FDCW100VNX alarm
104
Hot water alarm
106
Supply alarm
107
Troubleshooting guide
108
3 - Thermal cutout
108
4 - OU power failure
109
5 - Low condenser out
110
6 - High condenser out
111
7 - Anti freeze HX
112
8 - High HW temp. 9 High AH temp.
113
10 - High Supply temp. 1, 11 High Supply temp. 2
114
31 - S. fault HP
115
30 - S. fault Outdoor, 32 - S. fault Cond out, 33 - S. fault
Liquid line, 34 - S. fault HW, 35 - S. fault AH, 36 - S. fault
supply 1, 37 - S. fault supply 2
116
E35 - High HX temp
117
E36 - Permanent Hotgas
118
E37 - S. fault Tho-R
119
E38 - S. fault Tho-A
120
E39 - S. fault Tho-D
121
E40 - HP alarm
122
E42 - Current cut
123
E45 - Inverter communication error
124
E48 - Fan alarm
125
E49 - LP alarm
126
E51 - Inverter and fan motor error
128
E53 - S. fault Tho-S
129
E54 - S. fault LPT
130
E57 - Low refrigerant
131
E59 - Inverter error
132
Temperature sensor
133
Function check, components
134
HM 270V Relay test - forced control
134
DIP switches, FDCW100VNX
136
Circuit board layout
136
Function
136
Component replacement
137
HM270V
137
FDCW100VNX
138
Components
HM270V
148
Circulation pump (GP10)
148
Shuttle valves (QM30, QM31, QN11)
150
Particle filter (HQ1)
152
Safety valve (FL2)
152
Summary
152
FDCW100VNX
153
Compressor
153
4-way valve
153
Expansion valve
153
Low pressure sensor
153
Technical data
Electrical circuit diagram
155
HM270V
155
FDCW100VNX
160
Temperature sensor
161
Sensor placement
161
Data for sensor in FDCW100VNX
161
Data for sensor in HM270V
161
Component positions
162
Indoor unit
162
Outdoor unit
164
Dimensions
165
Indoor unit
165
Outdoor unit
166
Technical specifications
167
Performance
167
Operating temperature range
169
Capacity diagram
170
Accessories
171
Accessories
171
Table of Contents
Summary of Contents for FDCW100VNX
Page 7: ...For Home Owners 6 For Home Owners ...
Page 20: ...Installation 19 Installation ...
Page 42: ...Control 41 Control ...
Page 66: ...System description 65 System description ...
Page 81: ...Service 80 Service ...
Page 148: ...Components 147 Components ...
Page 155: ...Technical data 154 Technical data ...
Page 156: ...Technical data Electrical circuit diagram 155 Electrical circuit diagram HM270V ...
Page 157: ...Technical data Electrical circuit diagram 156 ...
Page 158: ...Technical data Electrical circuit diagram 157 ...
Page 159: ...Technical data Electrical circuit diagram 158 ...
Page 160: ...Technical data Electrical circuit diagram 159 ...