49
VII. Gas Piping
(continued)
E. Gas Piping for Multiple Boiler Installation
1. Individual module (boiler) gas pipe sizing
specific details
- see Paragraph A.
2. Individual module (boiler) recommended gas
piping detail
- see Figure 25.
3. An additional gas pressure regulator(s)
may need
to be installed to properly regulate inlet gas pressure
at the smallest individual module (boiler).
CAUTION
If gas pressure in the building is above ½ psig
(3.4 kPa), an additional gas pressure regulator
is required. Using one additional regulator
for multiple boilers may result in unsafe boiler
operation. The additional regulator must be able
to properly regulate gas pressure at the input
of the smallest boiler. If the regulator cannot
do this, two or more additional regulators are
required. Consult regulator manufacturer and/or
local gas supplier for instructions and equipment
ratings.
Summary of Contents for Phantom-X PHNTM210
Page 7: ...7 Figure 1B Model PHNTM285 I Product Description Specifications and Dimensional Data continued...
Page 52: ...52 VIII Electrical continued...
Page 53: ...53 VIII Electrical continued Figure 26 Wiring Connections Diagram...
Page 54: ...54 VIII Electrical continued Figure 27 Ladder Diagram...
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