Install Instructions

36
Figure 6-2 Single Boiler - Primary / Secondary Piping_COMBI ONLY
6A Hydronic piping
Please note that these illustrations are meant to show system piping concept only, the installer is responsible
for all equipment and detailing required by local codes.
NOTICE
Installation & Service Manual
DHW piping omitted for clarity.
NOTICE
FIRE TUBE
™
CAUTION
Mixing valves are required for the protection of low temperature loops.
BOILER
BACKFLOW
PREVENTER
PRESSURE
REDUCING VALVE
PRESSURE
GAUGE
TEMPERATURE /
PRESSURE
GAUGE
AIR
SEPARATOR
EXPANSION
TANK
BALL VALVE
(TYPICAL)
UNION
(TYPICAL)
DRAIN POINT
(TYPICAL)
MAKE UP WATER
FROM
SYSTEM
NOT TO EXCEED 4 PIPE DIA OR MAX. OF 12" APART
SYSTEM
CIRCULATOR
TO
SYSTEM
SYSTEM SUPPLY
SENSOR
(OPTIONAL)
DRAIN
MAY SUBSTITUTE LOW LOSS HEADER
Y-STRAINER
(RECOMMENDED)
DIR #2000529680
CHECK
VALVE