Hydronic piping, Near boiler piping connections, Installation & operation manual – Lochinvar KNIGHT WH 55 - 399 User Manual
Page 35: Circulator sizing, Figure 6-1a near boiler piping, Figure 6-1b near boiler piping w/low loss header, Continued)
Installation & Operation Manual
35
Near boiler piping connections
AIR
Y-STRAINER
(RECOMMENDED)
DOMESTIC
HOT WATER
PUMP
CONDENSATE
DRAIN
SYSTEM
PUMP
BOILER
PUMP
FR
OM
SY
ST
EM
TO
SY
ST
EM
TO
FRO
M
INDIRECT
DOMESTIC
HOT WATER
TANK
TO FLOOR
DRAIN
AIR
SEPARATOR
EXPANSION TANK
VENT
OUTLET
INLET
Figure 6-1A Near Boiler Piping
VENT
AIR VENT
VALVE
AIR
SEPARATOR
SYSTEM
SENSOR
DRAIN (TYPICAL)
SYSTEM
PUMP
LOW LOSS HEADER
(TYPICAL)
CONDENSATE
DRAIN
INDIRECT
DOMESTIC
HOT WATER
TANK
Y-STRAINER
(RECOMMENDED)
DRAIN VALVE
BOILER
PUMP
FILL VALVE
EXPANSION TANK
TO SYSTEM
FROM SYSTEM
FR
OM
TO
DOMESTIC HOT
WATER PUMP
VENT
AIR
TO FLOOR
DRAIN
CHECK V
ALV
E
OUTLET
INLET
Figure 6-1B Near Boiler Piping w/Low Loss Header
6
Hydronic piping
(continued)
Circulator sizing
The Knight wall mount boiler heat exchanger does have a pressure drop, which must be considered in your system design. Refer
to the graph in FIG. 6-2 for pressure drop through the Knight wall mount boiler heat exchanger.