valent VX Series, Инструкция по установке, эксплуатации и обслуживанию

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Dedicated Outdoor Air Unit 11
Optional Gas Piping
Units with indirect gas-fired furnaces require field-
supplied and installed gas supply piping. The unit gas
connection is 3/4-inch NPT. The maximum allowable
gas pressure is 14 in. wg.
Gas Connections
If this unit is equipped with an indirect gas-fired furnace,
connection to an appropriate gas supply line will be
required. For complete information on installation
procedures for the optional gas furnace, refer the
PVF/PVG Indirect Gas-Fired Heat Module Installation,
Operation, and Maintenance Manual.
Alternate Supply Entry Locations
Each installation is unique and as a result, alternate
entry locations may be field-located. Before using any
alternate entry location, verify the suitability of the
location and ensure the use of an alternate location
does not interfere with unit wiring, components or
functionality.
Manufacturer recommends that electrical service and
gas supply be brought into the cabinet through the
end wall, as shown below. There are three penetrations
into the cabinet that are required; one for high voltage
supply wiring, one for low voltage control wiring and one
for either gas supply or high voltage supply wiring for an
electric heater.
WARNING
Never drill holes in the roof of the unit! There is high
voltage wiring located between the inner and outer
roof panels. Damage to the wiring could cause severe
bodily harm or death.
Typical Gas Supply
Piping Connection
Ground
Joint
Union
8 in. Trap
Gas to
Controls
From Gas Supply
Bleeder Valve or
1/8 in Plugged Tap
Gas Cock
Recommended Gas and Electric Supply Entry Locations
Optional Unit
Disconnect
Field Wiring
Indirect
Gas
Supply
Location
Recommended Electrical and Gas Supply Entry Locations
Housing
Size
Total Heating
Capacity
(Input in MBH)
Gas
Connection
Size
Max Gas
Pressure
XV-112/
VXE-112
100
¾” NPT 14 in. wg.
150
200
250
300
XV-212/
VXE-212
300
¾” NPT 14 in. wg. 400
500
XV-311/
VXE-311
200
¾” NPT 14 in. wg.
250
300
350
400
500
600
700
800
XV-352/
VXE-352
600 1” NPT
13.5 in. wg.
800
2” NPT 1000
1200