Thomas & Betts UDAP dimensions Series Fan-TypeUnit Heaters, Table of Contents, For Your Safety

C E R T I F I E D

Series Fan-Type Unit Heaters

Installation/Operation FORM RZ-NA I-UDA

APPLIES TO: Models UDAP and UDAS

Table of Contents

		Page
Warnings		1
Installation/Operation		2-25
Check/Test/Startup		26-28
Maintenance/Service	..............	28-36
Index (by page)
Burner		16, 29
Burner Orifice		30
Burner Removal		29
California Warning Label		3
Clearances		7
Installation Codes		2
Confined Space (UDAP)		8
Dimensions		4-5
Disconnect, Built-in (UDAS)		16, 34
Door Switch (UDAS)		19, 33
Downturn Nozzle (Option)		4
Electrical Connections		16
Fan		32
Fan Motor		22, 32
Flame Rollout Switch		18, 34
Gas Piping and Pressures		12
Gas Valve		22, 33
General		2
Hanging the Heater		10
Hazard Intensity Levels		2
Heat Exchanger Maintenance		29
High Altitude		6, 14
Ignition System		19, 31
Limit Control		18, 33
Location (Heater)		9
Maintenance Schedule		28
Pressure Switch (Combustion Air)		17, 33
Replacement Parts	See Form P-UD
Sound Data		6
Startup		26
Suspending Heater		4
Technical Data		6
Thermostat (Option)		17
Throw (Heater)		9
Transformer		33
Troubleshooting		34-36
Uncrating and Preparation		3
Valve Outlet Pressure		14
Vent System		34
Venter Motor		32
Venting Model UDAP	Use Form I-V-PV
Venting Model UDAP-CV	Use Form I-V-CV
Venting Model UDAS	Use Form I-V-SC
Warranty		3
Wiring Diagrams		23-25

FOR YOUR SAFETY

What to do if you smell gas:

•Do not try to light any appliance.

•Do not touch any electrical switch; do not use any phone in your building.

•Immediately call your gas supplier from a neighbor's phone. Follow the gas supplier's instructions.

•If you cannot reach your gas supplier, call your fire department.

FOR YOUR SAFETY

Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.

WARNING: Improper installation, adjustment, alteration, service, or maintenance can cause property damage, injury, or death. Read the installation, operation, and maintenance instructions thoroughly before installing or servicing this equipment.

WARNING: Gas-fired appliances are not designed for use in hazardous atmospheres containing flammable vapors or combustible dust, in atmospheres containing chlorinated or halogenated hydrocarbons, or in applications with airborne silicone substances. See Hazard Levels, page 2.

WARNING: Should overheating occur, or the gas supply fail to shut off, shut off the manual gas valve to the appliance before shutting off the electrical supply.

WARNING: Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the appliance and replace any gas control that has been under water.

Form RZ-NA I-UDA, Mfg #195673 Rev 5, Page 1