Viessmann CRU, Инструкция по установке для подрядчиков

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13
A
B
C
D
E
F
G
H
Fig. 9
A
Female connection for control equipment: R
½
B
Boiler flow: PN 6 DN 100 with sensor well for boiler
water temperature sensor
C
Female connection for pressure limiter: R
½
D
Safety connection (safety valve): R 2
E
Boiler return 2: PN 6 DN 100
F
Boiler return 1: PN 6 DN 100
G Drain outlet: R 1
¼
H
Condensate drain: R
½
Danger
There is a risk of injury when working on pres-
surised components.
Only open the connections on the heating water
side after the boiler has been depressurised.
Note
■
The boiler is only suitable for fully pumped hot water
heating systems.
■
Install all pipe connections free of load and torque
stress.
1. Thoroughly flush the heating system.
2. Make all necessary connections.
Connection 1 heating circuit
■
Connect the heating return to boiler return 1.
Connection 2 heating circuits
■
Connect the heating circuit with the higher tem-
perature level to boiler return 2.
■
Connect at least 15 % of the boiler heating out-
put to boiler return 1.
Seal unused test ports.
Note
Never connect heat consumers to the safety con-
nector.
Connections on the heating water side
5816716