Hydronic piping, Installation & operation manual, Circulator sizing – Lochinvar 80 - 285 User Manual
Page 33: Figure 6-2a near boiler piping w/dirt separator, Figure 6-1 relief valve / t & p installation, Figure 6-2b near boiler piping w/low loss header, Continued)
Installation & Operation Manual
33
6
Hydronic piping
(continued)
Circulator sizing
The Knight boiler heat exchanger does have a pressure drop,
which must be considered in your system design. Refer to the
graph in FIG. 6-3 for pressure drop through the Knight boiler
heat exchanger.
INDIRECT
DOMESTIC
HOT WATER
TANK
TO FLOOR
DRAIN
DOMESTIC HOT
WATER PUMP
BOILER
PUMP
SYSTEM
PUMP
DIRT SEPARATOR
(RECOMMENDED)
DRAIN
(TYPICAL)
TO
SYSTEM
FROM SYSTEM
FROM
TO
Figure 6-2A Near Boiler Piping w/Dirt Separator
RELIEF VALVE
TEE WITH 3/4” FITTING ON TOP
CLOSE NIPPLE
(FIELD PROVIDED)
CLOSE NIPPLE
TEE WITH FITTING ON TOP
(FIELD PROVIDED)
TEMPERATURE AND
PRESSURE
GAUGE
Figure 6-1 Relief Valve / T & P Installation
DIRT SEPARATOR
(RECOMMENDED)
FILL VALVE
EXPANSION TANK
DRAIN VALVE
SYSTEM SENSOR
AIR SEPARATOR
LOW LOSS HEADER
(TYPICAL)
AIR VENT VALVE
DRAIN
(TYPICAL)
TO
SYSTEM
FROM SYSTEM
FROM
TO
INDIRECT
DOMESTIC
HOT WATER
TO FLOOR
DRAIN
Figure 6-2B Near Boiler Piping w/Low Loss Header