Viessmann VITOCAL 300-G Operations Instructions Page 42
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42
I Lead appliance (two-stage) of
the heat pump cascade
II to IV Lag heat pump (two-stage) 1 to
3
Equipment required
Pos. Description
Heat source
1
Heat pump stage 1
Note
For recommended compressor power cable, see page 15, on-site fuse pro-
tection (see from page 104 and 242)
3
Outside temperature sensor
2
Heat pump control unit (for the power supply, use a 3 x 1.5 mm
2
cable; on-
site fuse protection
≤
16 A)
5
Circulation pump for cylinder heating (heating water side), heat pump stage
1
6
Secondary pump, heat pump stage 1
9
Heat pump stage 2
Note
For recommended compressor power cable, see page 15, on-site fuse pro-
tection (see from page 104 and 242)
qP
Secondary pump, heat pump stage 2
qQ
Circulation pump for cylinder heating (heating water side), heat pump stage
2
qT
Primary pump, heat pump stage 1
qZ
Primary circuit flow temperature sensor (for installation, see page 84)
qU
Primary circuit return temperature sensor (for installation, see page 84)
wT
Primary pump, heat pump stage 2
Electrical connection
For further information regarding the
PCBs, see from page 220.
Preparing for installation
Integration of the two-stage version in the…
(cont.)
5442 829 GB
- VIESMANN 1
- Safety instructions 2
- Installation instructions 4
- Service instructions 4
- Product information 9
- Installation 10
- Heating circuit 17
- Cooling operation 19
- DHW heating 20
- External heat source 21
- Power-OFF 22
- Electrical connection 23
- I>I>I> 26
- With two primary pumps 27
- With a common primary pump 28
- Preparing for installation 30
- (cont.) 30
- 230 V / 50 Hz 33
- Low voltage 39
- 230 V/50 Hz 39
- Two-stage heat pump cascade 41
- System example 1 44
- System example 2 52
- 230 V/50 HzLow voltage 66
- Levelling the heat pump 67
- Installing the heat pump 67
- Remove top panel 69
- < 42 V 70
- Hydraulic connections 71
- Installation sequence 74
- Overview of connections 75
- Connecting sensors 83
- Connecting pumps 85
- Other components 90
- Cooling functions 92
- Swimming pool water heating 99
- Cascade control via KM BUS 100
- Electrical connections 100
- Power supply 103
- Connecting power cables 105
- Power supply with power-OFF 108
- Phase monitor 113
- Closing the heat pump 115
- Checking grommets 116
- 5442 829 GB 118
- Opening the heat pump 119
- Writing reports 119
- Commissioning assistant 121
- Instructing the system user 125
- Scanning messages 126
- Messages 126
- Message overview 127
- Diagnosis (service scans) 150
- Calling up diagnosis 150
- Scanning operating data 150
- System overview 151
- Heat pump module diagnosis 154
- Select with 160
- Energy statement htgÜ 160
- Wk. 23/09 160
- Brief scan 161
- Function check 163
- Checking sensors 166
- Checking the fuse 167
- Appliance too noisy 167
- Removing the heat pump module 168
- Activating service menu 171
- Disabling the service menu 171
- 7000 System scheme 173
- 7001 Language 173
- 7010 External extension 175
- 700A Cascade 176
- 5735 Number of lag heat pumps 176
- 7008 Swimming pool 176
- 700B Output of lag heat pumps 177
- 7017 Vitocom 100 184
- 5000 Enable compressor 185
- 5030 Heat pump output 185
- Parameter group compressor 185
- 5130 Heat pump output 186
- Parameter group compressor 2 186
- 6000 Set cylinder temperature 189
- 6015 DHW reheating 189
- Parameter group DHW 189
- 6009 DHW start optimisation 191
- 600A DHW stop optimisation 192
- 600C Set DHW temperature 2 192
- 600E Temperature sensor 2 192
- 6016 DHW heating priority 192
- 7A00 Solar control unit 195
- Parameter group solar 195
- 790A Stage at power-OFF 197
- 7303 Screed program 199
- 7203 Hysteresis 204
- 7204 Maximum temperature 205
- 7100 Cooling mode 211
- Parameter group cooling 211
- 7101 Cooling circuit 212
- Parameter group time 214
- 7710 LON communication module 215
- Parameter group communication 215
- 7779 Fault manager 216
- 77FF Time via LON 217
- 8800 Lock out controls 219
- Parameter group operation 219
- Controller and sensor PCB 228
- Parts list 231
- Control parameters report 236
- Hydraulic parameters report 236
- Specification 241
- Heat pump commissioning order 246
- Declaration of conformity 247
- Keyword index 248
- Applicability 256
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