Low Loss Headers - Viessmann VITODENS 222-F Series Technical Manual

Installation accessories

Low loss headers

Low loss header, type Q70
Part no. ZK03679
■ Flow rate up to 3 m
3 /h
■ R 1 female connector
■ 3 female connections Rp ½ for air vent valve, drain outlet and sen-
sor well
■ With air vent valve and sensor well for temperature sensor
■ With EPP thermal insulation to EnEV
The connection to the heat generator is made on site.
A
Rp 1/2
Rp 1
B
45
Rp 1
Rp 1/2
E
35
B
45
Rp 1
Rp 1
C
C
Rp 1/2
35
D
160
A Ventilation Rp ½
B Heating water flow R 1 female thread
C Heating water return R 1 female thread
D Drain Rp ½
E Sensor well Rp ½
Wall mounting bracket for low loss header, type Q70
Part no. ZK03682
With fixing materials
VITODENS
(cont.)
Pressure drop
120 12
100 10
80 8
60 6
40 4
20 2
0 0
0 1 2
Flow rate m³/h
3 4 5
VIESMANN
93
7