DCS DRH-48N Benutzerhandbuch
INSTALLATION
10
Do not locate either the gas or electrical supply line directly over the flue outlet of the heater. Electrical
supply line shortage and / or control overheating may occur. The heater must be installed in a location
such that it is accessible for servicing and have no restriction of air flow to the air inlet of the heaters
casing.
supply line shortage and / or control overheating may occur. The heater must be installed in a location
such that it is accessible for servicing and have no restriction of air flow to the air inlet of the heaters
casing.
MOUNTING
Each heater must be installed such that the minimum clearance to combustibles are maintained.
Combustible materials are defined as wood, paper, foliage, plastic, plexiglass or other materials capable
of being ignited and burned. Such materials shall be considered combustible even though flame-
proofed, fire retardant treated or plastered. Additional clearances may be required for glass, painted
surfaces and other materials which may be damaged by radiant or convection heat.
Combustible materials are defined as wood, paper, foliage, plastic, plexiglass or other materials capable
of being ignited and burned. Such materials shall be considered combustible even though flame-
proofed, fire retardant treated or plastered. Additional clearances may be required for glass, painted
surfaces and other materials which may be damaged by radiant or convection heat.
ELECTRICAL
A 24 VAC, 40 VA transformer has been included with the product. The on-off control of the heater
should be controlled from 120 VAC side of the transformer. A UL approved outdoor wall switch must
be used for this purpose. The transformer must be mounted a minimum of 12” from the heater in a
weather protected cover. Do not put the transformer in the heater (this will damage the unit.) A step
down transformer approved as having at least a 40 VA rating must be utilized for each connected
heater. Control wires used to electrically connect one or more heaters together must have both
adequate capacity and insulation temperature ratings for the total connected load. Use at least 18 ga.
wire up to 50 ft. from heater to transformer or wall switch. Use 16 ga. over 50 ft. distance. If the original
wires supplied should need replacement, they must be replaced with wiring material having a
temperature rating of at least 105 degrees Centigrade.
should be controlled from 120 VAC side of the transformer. A UL approved outdoor wall switch must
be used for this purpose. The transformer must be mounted a minimum of 12” from the heater in a
weather protected cover. Do not put the transformer in the heater (this will damage the unit.) A step
down transformer approved as having at least a 40 VA rating must be utilized for each connected
heater. Control wires used to electrically connect one or more heaters together must have both
adequate capacity and insulation temperature ratings for the total connected load. Use at least 18 ga.
wire up to 50 ft. from heater to transformer or wall switch. Use 16 ga. over 50 ft. distance. If the original
wires supplied should need replacement, they must be replaced with wiring material having a
temperature rating of at least 105 degrees Centigrade.
GAS PIPING
A minimum pipe size of 1/2” is required for inlet piping. A 1/2” lever
handled shut-off gas cock should be installed within 6 feet of the
appliance for servicing the unit.
handled shut-off gas cock should be installed within 6 feet of the
appliance for servicing the unit.
Check with local and state
plumbing and heating codes regarding sizing of the gas lines.
Installation of a drip leg in the gas supply line going to each heater
is required to minimize the possibility of any loose scale or dirt
within the gas supply line from entering the heater’s control
system.
Installation of a drip leg in the gas supply line going to each heater
is required to minimize the possibility of any loose scale or dirt
within the gas supply line from entering the heater’s control
system.
1/2" Conduit