ECR International PENNCO 15B III Series Installation, Operation & Maintenance Manual page 10

NOTICE
Circulators in following illustrations are mounted on
system supply side, mounting on system return side
is also acceptable practice.
Figure 2 - Circulators Mounted on Supply System, Boiler Used In Configuration to Chiller System.
See Special Conditions, Page 9
SUPPLY PIPING
TO HEATING
AND COOLING
ELEMENT
CIRCULATOR
RETURN PIPING
FROM HEATING
AND COOLING
ELEMENT
5 - CONNECTING SUPPLY AND RETURN PIPING
C
WATER
CHILLER
D
CHECK
VALVE
GATE
VALVE
PROPER
BACKFLOW
PROTECTION
FEED
DEVICE
WATER
B
10
PRESSURE
REDUCING
VALVE
A
EXPANSION
TANK
PURGE
VALVE