MUA-SVX01A-EN • Direct-Fired Make-up Air
28
Pre-installation Verification
This equipment must be installed and wired in accordance with regulations of
the National Board of Fire Underwriters, National Electric Code, and local
governing bodies. The following recommendations are not intended to supplant
any requirements of federal, state, or local codes having jurisdiction. Authorities
having jurisdiction should be consulted before installations are made. Local
codes may require additional safety controls and/or interlocks.
All installations in airplane hangers must be in accordance with current ANSI/
NFPA No. 409. All installation sin public garages must be in accordance with
current NFPA No. 88A and NFPA No. 88B.
For Canadian Installations
All installations must conform with local building codes, or in the absence of
local codes, with current CAN/CGA-B149 -Installation Codes for Gas Burning
Appliances and Equipment.
CAUTION
Equipment
Damage!
Do not install heating system in corrosive or flammable atmospheres. Premature
failure of, or severe damage to the unit will result.
Heating system must not be installed in locations where air for combustion
would contain chlorinated, halogenated or acidic vapors. If located in such an
environment, premature failure of the unit will occur.
Handling the Equipment
The direct gas-fired unit has been designed for rigging and handling through the
use of special lifting lugs installed on the sides of the unit. As explained
previously, the basic unit is designed for shipping in one piece where shipping
limitations allow.
Some optional accessories may require field mounting.
When unloading and setting the equipment, use the lifting lugs provided or move
the equipment on rollers. Hooks, jacks, or chains must not be used around the
casing, main control panel or exterior mounting controls.
During transit. unloading and setting of the unit, bolts and nuts may have
become loosened, particularly in the pillow block ball bearing assemblies of the
fan section. Turn fan shaft by hand to make certain that blower does not rub
against blower housing, and that bearing set screws are tight. If units are not set
immediately, cover all openings that might be exposed to the weather.
Open the cover on the electrical control box located on the unit. Inspect all wire
terminals and wiring terminations to ensure that all connections are tight.
If units are not set immediately, cover all openings that might be exposed to the
weather.
Rotate fans monthly.
Installation
