Install Instructions

35
Figure 17A: Schematic Tankless Heater Piping
TABLE 2A: TANKLESS HEATER DATA:
Rear Mounted Heater on Steam and Water Boilers
TABLE 2B: TANKLESS HEATER DATA:
Front Mounted Heater on Water Boilers
SECTION VII: TANKLESS AND INDIRECT WATER HEATER PIPING (cont'd)
Boiler
Model
Heater
No.
Heater Rating
(GPM)
Pressure Drop
thru Heater
(PSI)
Steam Water Steam Water
V8H3 V1-2 2.75 3 3.9 4.7
V8H4 V1-2 3 3.25 4.7 5.6
V8H5 V1-2 3.25 3.5 5.6 6.4
V8H6 V1-2 3.75 3.75 7.2 7.2
V8H7 V1-2 3.75 4 7.2 8
V8H8 V1-2 4 4.5 8 9.8
V8H9 V1-2 4 4.5 8 9.8
Boiler
Model
Heater
No.
Heater Rating
(GPM)
Pressure Drop
thru Heater
(PSI)
V8H3 222B 3.00 18.7
V8H4 222B 3.25 25.2
V8H5 222B 3.75 31.6
V8H6 222B 4.00 37.0
V8H7
222B 4.25 41.3
A54 5.50 36.0
V8H8
222B 4.50 46.4
A54 6.00 39.5
V8H9
222B 5.00 52.0
A54 6.00 39.5