Desa installation manual Illustrated Parts Breakdown, Models CDR3924PT and CDR3924NT

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ILLUSTRATED PARTS BREAKDOWN

MODELS CDR3924PT AND CDR3924NT

	13
9	5
7
6	17

			8	4
			8
20	14	15	27
	14			27

	19
10
23	25	26
11		3
11		22

2112

24 2

33 31

3230

www.desatech.com

113183-01B

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Contents What to do if YOU Smell GAS Thermostat Models CDR3924NT and CDR3924PTTable of Contents Safety Information Local Codes Product Features Product IdentificationUnusually Tight Construction AIR for Combustion VentilationDetermining FRESH-AIR Flow for Heater Location Conﬁned and Unconﬁned SpaceVentilation Air From Outdoors Ventilation AIRVentilation Air From Inside Building Installation Check GAS TypeRear Installation and Clearances for VENT-FREE OperationLog WidthFloor Clearances Determining Minimum Mantel Clearance When Using a HoodMantel Clearances Determining Minimum Mantel ClearanceInstalling Heater Base Assembly Installation Items NeededConnecting to GAS Supply External Regulator With Vent Pointing DownNatural From Gas Checking GAS ConnectionsPropane/LP From Test Pressures In Excess Of 1/2 Psig 3.5 kPaInstalling Logs Test Pressures Equal To or Less Than 1/2 Psig 3.5 kPaAttaching Grate to Base Assembly Adding Lava RockLighting Instructions For Your Safety Read Before LightingOperating Heater Thermostat Control Operation Manual Lighting ProcedureTo Turn OFF GAS To Appliance Pilot Flame Pattern Technical ServiceInspecting Burners Burner Flame PatternsLogs Cleaning MaintenanceBurner Injector Holders and Pilot AIR Inlet Holes Troubleshooting Observed Problem Possible Cause RemedyMaintenance, Cold Minute Air in gas line Operate burners until air is Gas leak. See Warning Optional Positioning Thermostat Sensing Bulb For Masonry and FACTORY- Built Metal FireplaceService Hints SpecificationsReplacement Parts AccessoriesIllustrated Parts Breakdown Models CDR3924PT and CDR3924NTParts List Limited Warranty Comfort Glow VENT-FREE GAS LOG Heaters Warranty InformationKeep this Warranty