DCS Patio Heater DRH-48N User Manual

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6
INSTALLATION
INSTALLING THE HEATER:
The Built-in Patio Heater provides radiant warmth indoors (commercial applications only) or outdoors with a
powerful 56,000 Btu/hr natural gas. All units are equipped with hot surface ignition and 100% shutoff valve for
s
afety. Built-in Patio Heaters to be installed in Aircraft Hangers must be installed in accordance with American
National Standards for Aircraft Hangers, ANSI/NFPA No. 409. Heaters to be installed in public garages must be
installed in accordance with NFPA No. 88A standards for parking structures. Heaters must be installed so that
minimum clearances marked on the heater will be maintained from vehicles parked below the heater.
The installation must conform with ANSI standard No. Z223.1 National Fuel Gas Code and any applicable local
codes. In Canada, the installation must conform with local building codes or, in the absence of local codes,
with National Standards of Canada CAN/CGA-B 149.1 & 2-M86. Each heater must be electrically grounded in
accordance with the National Electrical Code, ANSI/NFPA 70 when an external electrical source is utilized. In
Canada, the CSA Canadian Electrical Code, C22.1, Part 1 applies.
The gas inlet supply and normal operating manifold pressure for each heater are as follows. For gas supply line
pressures in excess of 1/2 psig, contact your dealer or Customer Care.
GAS INLET PRESSURE
Maximum: pressure Natural Gas: 1/2 psig
Minimum: pressure Natural Gas: 6” W.C.
Manifold: pressure Natural Gas: 5” W.C.
The heater has an internal 5” W.C. regulator.
Note:
This unit is for use with natural gas only.
WARNING!
1.
When installing Mounting Body Assembly, make sure left hand and right hand Body Assembly are level. If not,
escaping heat could easily cause damage to the components inside the compartment.
2.
When installing heater in the inverted orientation, please contact Customer Care at 1-888-936-7872. For special
instructions, see p/n 242420. Inverted installation to be performed by a qualified technician.
Nor
mal Or
ientation
I
n
verted Orientation

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