5.4
Electrics ...............................................................................................................................
5.4.1 Electrical connection to a power source .....................................................................
5.5
5.6
Examples of use ..................................................................................................................
5.6.3 Example 3: Single-phase two-circuit system ..............................................................
5.6.5 Example 5: Two-circuit system with integrated hot water tank ...................................
5.6.6 Example 6: One-circuit system with integrated hot water tank ...................................
5.6.9 Key to the examples of use.........................................................................................
6
Installation ............................................................................................................
6.1
6.2
6.3
6.4
Installing devices ................................................................................................................
6.4.1 Indoor units .................................................................................................................
6.5
Opening devices .................................................................................................................
6.5.1 Combined hydro-modules ...........................................................................................
6.5.2 Hydro-modules............................................................................................................
6.6
6.6.1 Connecting the coolant pipes to the indoor unit ..........................................................
6.6.2 Connecting the coolant pipes to the outdoor unit .......................................................
6.7
6.7.1 Connecting the water pipes to the indoor unit or compact device ..............................
6.7.2.1
6.7.2.2
6.8
6.8.1.1
6.8.1.2
6.8.1.3
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Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
105
6.8.2 Connecting the optional on-site accessories ..............................................................
6.8.2.1
105
6.8.2.2
116
6.8.2.3
117
6.8.3 Assembling and connecting the operating unit ...........................................................
126
6.9
Starting up the system .......................................................................................................
127
6.9.1 Emptying the cooling system and carrying out a pressure test ..................................
128
6.9.2 Filling and venting the water system ...........................................................................
6.9.2.1
129
6.9.2.2
130
6.9.3 Checking the system...................................................................................................
131
6.9.4 Carrying out a test run ................................................................................................
132
6.9.5 Carrying out a system transfer and familiarisation ......................................................
133
7
Maintenance .........................................................................................................
134
135
7.1
Checking the water pressure .............................................................................................
137
7.2
Checking the pressure relief valve ....................................................................................
7.3
Conducting visual checks on the PCBs and terminals ...................................................
138
7.4
Cleaning the dirt catchers ..................................................................................................
141
7.5
Checking the FI protection switch .....................................................................................
144
7.6
Checking the quick vent valves and venting the system ................................................
145
145
7.7
Resetting the thermostatic overload protection ..............................................................
146
7.8
Carrying out maintenance work on the cooling circuit ...................................................
148
8
Appendix ...............................................................................................................
148
8.1
Extract from the operating instructions (H-Generation) .................................................
149
151
8.2
Troubleshooting ..................................................................................................................
152
154
158
161
162
167
168
170
172
174
174
177
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Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
Connecting the accessories to the indoor unit .............................................................................
Connecting the accessories to the compact device ....................................................................
Brief overview of external interfaces ............................................................................................
Filling the hot water tank ..............................................................................................................
Filling the heating and cooling circuit ...........................................................................................
180
180
182
184
186
191
191
194
194
195
196
197
197
198
198
199
199
199
200
200
201
201
203
203
220
7