Innovation Hot Water Hot Water Boiler User Manual
- INTERNATIONAL
CHAPTER 2 – INSTALLATION
OMM-0120_0A
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
Page
25
of
174
GF-128-I
Phone: 800-526-0288
11/15/2016
2.10.3 External Gas Supply Regulator
An external gas pressure regulator is required on the gas inlet piping under most conditions
(see sections 2.10.3.1 and 2.10.3.2, below). Regulators must conform to the following
specifications:
•
The external natural gas regulator must be capable of regulating 200,000 BTU/Hr to
3,180,000 BTU/Hr (58.61 kW to 932.0 kW) of natural gas while maintaining a gas
pressure of 8.0” W.C. (1.99 kPa) minimum to the unit.
•
A lock-up style regulator MUST be used when gas supply pressure will exceed 14” W.C.
(3.49 kPa).
For all installations that EXCEED 7” W.C. (1.74 kPa) gas pressure, a mandatory external gas
supply regulator must be positioned as shown in Figure 2-8. No regulator is required for gas
pressures below 7” W.C. (1.74 kPa) of pressure. Consult the local gas utility for detailed
requirements concerning venting of the supply gas regulator.
Figure 2-8. Manual Gas Shut-Off Valve Location
NOTE
It is the responsibility of the customer to source and purchase the
appropriate gas regulator as described above. However, AERCO
offers for sale an appropriate regulator, which may be ordered at
the time of unit purchase or separately. Contact AERCO for more
information.
1” (2.54 cm)
MANUAL
SHUTOFF
VALVE
NATURAL GAS
SUPPLY
DIRT TRAP
GAS PRESSURE
REGULATOR
