OCI OCIE48EH Installation & Operation Manual page 9

Installation
WARNING:
1. This product must be installed by a licensed plumber or gas fitter
when installed within the Commonwealth of Massachusetts.
2. When 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.
Mounting Notes:
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.
Each heater must be installed such that the minimum clearance to com-
bustibles 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 dam-
aged by radiant or convection heat.
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 4 feet of the appliance for servic-
ing the unit. Check with local and state plumbing and heating codes regard-
ing 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.
Note: Where applied, the Uniform Mechanical Code requires that all
portions of overhead radiant heaters are located at least 8 feet above
the floor.
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