Westinghouse Premium WBCMC 1000 Series Installation Manual page 22

22
LOW LOSS HEADER
Figure 11 - 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. See Multiple
Boiler Manifold Piping chart, this manual, when sizing and
installing a multiple boiler system.
6. System flow (Secondary Loop) must be greater than the
boiler's Primary Loop flow.
7. Installations must comply with all local codes.
8. System sensor must be placed as shown in the drawing.
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.
whl-428-r1 Rev. 001 Rel. 012 Date 7.21.20
AIR SEPERATOR
CONNECTIONS
CONNECTIONS
HOT
NEUTRAL
HOT
NEUTRAL
HOT
LINE NEUTRAL
LINE HOT
Figure 12 - Cascaded Space Heating Wiring
CONNECTIONS
CONNECTIONS
NEUTRAL
HOT
LINE NEUTRAL
LINE HOT