Connections On The Heating Water Side - Viessmann Vitocrossal 200 Installation Instructions For Contractors

Connections on the heating water side

SA/KR2
KR
KOA
E
Fig. 19
E Drain and expansion vessel connection R 1
KOA Condensate drain with trap R
KR Boiler return
Note
The Vitocrossal is only suitable for fully pumped hot
water heating systems.
Never install 4-way mixers, overflow valves or other
flow/return bypass devices.
Install all pipe connections free of load and torque
stress.
Boiler flow and return connections
Rated heating Connection PN 6
output
KR/KV
142 kW
≤
186 kW
≥
!
Please note
Unsuitable water quality can damage the boiler
shell.
Only fill the boiler with water that complies with
the "Water quality requirements" (see service
instructions).
24
KV
A
½
KR2
DN 50 DN 50
DN 65 DN 50
B
KR2 Boiler return 2 (accessories, subject to order)
KV Boiler flow
SA Safety connection G
1. Fit with a gasket, subject to order (accessories):
■ Safety connection
■ Boiler return 2 with safety connection
2. Thoroughly flush the heating system.
3. Connect the heating circuits.
and R 1
½ ¼
A
B