Westinghouse Premium WBCMC 1000 Series Installation Manual page 21

LOW LOSS HEADER
Figure 9 - Cascaded Space Heating
FIGURE NOTES:
1. This drawing is meant to demonstrate system piping
concept only.
2. Install a minimum of 12 diameters of straight pipe
upstream of all circulators.
3. Install a minimum of 6 diameters of straight pipe up and
downstream of all closely spaced tees.
4. Piping shown is Primary/Secondary.
5. The minimum pipe size for connecting a Mod Con boiler
is 3" for both the 1000 and 1700 models.
6. System flow (Secondary Loop) must be greater than the
boiler's Primary Loop flow.
7. Installations must comply with all local codes.
The piping will not support the weight of the circulators.
Refer to the circulator manufacturer's instructions to
properly support the circulator. Failure to comply with
these instructions could result in property damage,
severe personal injury, or death.
AIR SEPARATOR
FOLLOWER
CONNECTIONS
CONNECTIONS
HOT
NEUTRAL
HOT
NEUTRAL
HOT
LINE NEUTRAL
LINE HOT
Figure 10 - Cascaded Space Heating Wiring
whl-428-r1 Rev. 001 Rel. 012 Date 7.21.20
21
CONNECTIONS
CONNECTIONS
LINE NEUTRAL
LINE HOT