Raytherm Residential Boilers Installation and Operating Instructions
Manuals
Brands
Raypak Manuals
Boiler
0180B Type H
21
22
23
24
25
26
27
28
29
30
23
Fig. 20: System with Three (3) Zone Pumps
NOTE: Check V
A
rating of each relay coil. T
otal load must not exceed V
A
rating of transformer
.
Fig. 21: Power V
ent System with Zone V
alve
1
...
...
21
22
23
24
25
...
...
40
