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Desa
CFS18NRA, VS18NRA, VS24NRA, VS30NRA installation manual
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Contents
Main
UNVENTED (VENT-FREE) NA TURAL GAS LOG HEATER
OWNERS OPERATION AND INSTALLATION MANUAL
Air for Combustion and Ventilation
DESA INTERNATIONAL
SAFETY INFORMATION
WARNINGS
PRODUCT IDENTIFICATION
LOCAL CODES
UNPACKING
PRODUCT FEATURES
OPERATION
PROVIDING ADEQUATE VENTILATION
Unusually Tight Construction
and
Ventilation Air From Outdoors
De- termining Fresh-Air Flow for Heater Location
DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION
Determining if You Have a Confined or Unconfined Space
National Fuel Gas Code, ANS Z223.1, 1992, Section 5.3
Example:
.
VENTILATION AIR
Ventilation Air From Inside Building
Ventilation Air From Outdoors
CHECK GAS TYPE
INSTALLATION AND CLEARANCES
(Vent-Free Operation Only)
Minimum Wall and Ceiling Clearances (see Figure 4)
Heat Resistant Material (A)
Accessories
Between 8" and 12"
Minimum Noncombustible Material Clearances
Installing Damper Clamp Accessory for Vented Operation
MANTEL CLEARANCES
FLOOR CLEARANCES
INSTALLING HEATER BASE ASSEMBLY
Installation Items Needed
INSTALLING DAMPER CLAMP ACCESSORY FOR VENTED OPERATION
Area of Various Standard Round Flues
Installation Items Needed
CONNECTING TO GAS SUPPLY
CHECKING GAS CONNECTIONS
Pressure Testing gas Supply Piping system
Pressure Testing Heater Gas Connections
INSTALLING LOGS
FOR YOUR SAFETY READ BEFORE LIGHTING
LIGHTING INSTRUCTIONS
TO TURN OFF GAS TO APPLIANCE
Shutting Off Heater
Shutting Off Burners Only (pilot stays lit)
MANUAL LIGHTING PROCEDURE
Thermostat Control Operation
OPTIONAL REMOTE OPERATION
Lighting Instructions
GHRC Operation:
GHRCT Operation:
INSPECTING BURNERS
PILOT FLAME PATTERN
FRONT BURNER FLAME PATTERN
CLEANING AND MAINTENANCE
LOGS
CLEANING BURNER INJECTOR HOLDER AND PILOT AIR INLET HOLE
REPLACEMENT PARTS
PARTS UNDER WARRANTY
Page
Page
IMPORTANT
ILLUSTRATED PARTS BREAKDOWN
VARIABLE CONTROL CFS18NRA, VS18NRA VS24NRA, VS30NRA
PARTS LIST
VARIABLE CONTROL CFS18NRA, VS18NRA VS24NRA, VS30NRA
WIRING DIAGRAM
SPECIFICATIONS
18" Variable 24" Variable 30" Variable
TECHNICAL SERVICE
SERVICE HINTS
ACCESSORIES
LIMITED WARRANTY VENT-FREE NATURAL GAS LOG HEATERS
WARRANTY INFORMATION
INTERNATIONAL
NOT A UPC