27
This also particularly applies when connecting solar
thermal systems.
Connecting the secondary side
Fig. 20
Symbol
Meaning
Connection
Outdoor unit return (heating
water inlet)
G 1
¼
Outdoor unit flow (heating
water outlet)
G 1
¼
Heating water flow
G 1
¼
DHW
G
¾
DHW circulation
G
¾
Cold water
G
¾
Heating water return
G 1
¼
1.
Connect the "hydraulic connection set, heating cir-
cuit for installation on finished walls" (required
accessories) to the heat pump.
Separate installation instructions
Note
If the DHW circulation pipe is not required, tightly
seal the connection to the heat pump.
2.
Only for systems with 2 heating circuits and without
heating water buffer cylinder:
For the heating circuit with mixer, fit the installation
kit with mixer (accessories) in the heat pump.
Separate installation instructions
3.
Connect all hydraulic lines to the heat pump.
Connections to the outdoor unit
■
Max. torque for flow and return to the outdoor
unit: 50 Nm
■
Connection sets (accessories) are available for
hydraulic connection to the outdoor unit.
!
Please note
Mechanically loaded hydraulic connections
lead to leaks, vibrations and appliance dam-
age.
Connect on-site lines so that they are free of
load and torque stress.
4.
Thoroughly flush the heating system.
Installation sequence
Connecting the secondary circuit
(cont.)
5831412
Installation
Содержание Vitocal 222-A
Страница 80: ...80 Fig 64 Maintenance Indoor unit Placing the control unit panel in its service position 5831412 Maintenance...
Страница 92: ...92 Maintenance Checking the fuses cont 5831412 Maintenance...
Страница 102: ...102 0004 0005 0001 0002 0003 0006 0007 Fig 74 Indoor unit parts lists Miscellaneous 5831412 Components...
Страница 104: ...104 Indoor unit parts lists Miscellaneous cont 5831412 Components...
Страница 112: ...112 Outdoor unit parts list 230 V types 221 A04 to A08 Outdoor unit electrical equipment 230 V cont 5831412 Components...
Страница 120: ...120 Outdoor unit parts list 230 V types 221 A10 to A16 Outdoor unit electrical equipment 230 V cont 5831412 Components...
Страница 154: ...154 5831412...
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