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www.desatech.com

115481-01A

2

WARNING:  Improper  installation,  adjustment,  altera-
tion, service or maintenance can cause injury or prop-
erty damage. Refer to this manual for correct installation 
and  operational  procedures.  For  assistance  or  addi-
tional information consult a qualified installer, service 
agency or the gas supplier.

WARNING:  This  appliance  is  for  installation  only  in 
a  solid-fuel  burning  masonry  or  UL127  factory-built 
fireplace,  constructed  of  noncombstible  material  and 
connected to a working flue. (See page 6 for minimum 
flue opening.

WARNING: This is a gas-fired heater. It uses air (oxy-
gen) from the room in which it is installed. Provisions 
for  adequate  combustion  and  ventilation  air  must  be 
provided. Refer to the 

National Fuel Gas Codes, ANSI 

Z233.1/NFPA  54,  Section  5.3, Air  for  Combustion  and 
Ventilation.

This appliance may be installed in an aftermarket,* per-
manently located, manufactured (mobile) home, where 
not prohibited by local codes.
This appliance is only for use with the type of gas indi-
cated on the rating plate. This appliance is not convert-
ible for use with other gases. 

* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer

State of Massachusetts: The installation must be made 
by a licensed plumber or gas fitter in the Commonwealth 
of Massachusetts.

TABLE OF CONTENTS

Safety Information ............................................... 3
Product Identification ........................................... 4
Local Codes ........................................................ 4
Unpacking ........................................................... 5
General Information ............................................. 5
Installation ........................................................... 5
Operating Appliance ............................................ 9
Inspecting Burners .............................................11
Cleaning and Maintenance ................................ 12

Technical Service .............................................. 12
Replacement Parts ............................................ 12
Troubleshooting ................................................. 13
Specifications .................................................... 15
Wiring Diagram .................................................. 15
Illustrated Parts Breakdown and Parts List ....... 16
Accessories ....................................................... 18
Warranty Information .............................

Back Page

Summary of Contents for Design Dynam

Page 1: ...ny appliance Do not touch any electrical switch do not use any phone in your building Immediatelycallyourgassupplierfromaneighbor s phone Follow the gas supplier s instructions If you cannot reach you...

Page 2: ...ANSI Z233 1 NFPA 54 Section 5 3 Air for Combustion and Ventilation This appliance may be installed in an aftermarket per manently located manufactured mobile home where not prohibited by local codes...

Page 3: ...ts Make certain you read and understand all warnings Keep this manual for reference It is your guide to safe and proper operation of this log set WARNING Any change to this log set or its controls can...

Page 4: ...he vents before operating heater 7 Toreducethecreationofsoot followtheinstruc tions in Cleaning and Maintenance page 12 8 Do not run heater where ammable liquids or vapors are used or stored under dus...

Page 5: ...f highly heated A dirtychimney uemaycreateand distribute soot within the house Inspectchimney uefordamage If damaged repair ue damper before operating appliance CAUTION Thisheatercreates warmaircurren...

Page 6: ...ated pro pane LP tank may cause an explosion Propane LP Supply Tank External Regulator Vent Pointing Down Figure 3 External Regulator with Vent Pointing Down Figure 2 Attaching Damper Clamp Manufactur...

Page 7: ...y to freeze A sediment trap traps moisture and contaminants This keeps them from going into heater controls If sediment trap is not installed or is installed wrong heater may not run properly Figure 4...

Page 8: ...detection fluid to all joints Bubbles forming show a leak 4 Correct all leaks at once Gas Pressure Check The appliance regulator controls the burner pres sure which should be checked at the pressure t...

Page 9: ...d OPERATING APPLIANCE The RF Millivolt valve control used on these appli ances allows you to turn the gas log set on or off use a timer to automatically operate the log set increase or decrease ame he...

Page 10: ...appliance and to replace any part of the control system and any gas control which has been under water OPERATING HEATER Continued LIGHTING INSTRUCTIONS NOTICE During initial operation the appliance wi...

Page 11: ...until mode is OFF Pilot stays lit Shut Off Main Burner Without Remote Turn PilotStat knob to PILOT Pilot stays lit Shut Off Main Burner and Pilot Turn PilotStat knob to OFF CAUTION During normal shutd...

Page 12: ...lide the battery compartment door off to expose old batteries Place new batteries into housing and reattach door See Figure 15 Figure 15 Bottom of Transmitter Showing Battery Compartment and Door TECH...

Page 13: ...ntrol system be sure external gas shut off valve located at gas supply inlet is in the ON position POSSIBLE CAUSE REMEDY OBSERVED PROBLEM 1 Defective ignitor no spark at electrode 2 Defective or misal...

Page 14: ...2 Check thermopile with mil livolt meter Take reading at thermopile terminals of gas valve It should read 325 mil livolts minimum with optional wall switch OFF Replace faulty thermopile if reading is...

Page 15: ...10 6 3 W C 3 5 1 6 W C 10 6 3 W C Inlet Gas Pressure in of water Maximum 10 5 W C 13 W C 10 5 W C 13 W C Minimum 5 0 W C 11 W C 5 0 W C 11 W C Valve Operation RF Millivolt RF Millivolt RF Millivolt RF...

Page 16: ...m 115481 01A 16 ILLUSTRATED PARTS BREAKDOWN HCA 24 RFN HCA 24 RFP HCA 18 RFN HCA 18 RFP HCM 24 RFN HCM 24 RFP HCM 18 RFN HCM 18 RFP HKE 24 RFN HKE 24 RFP HKE 18 RFN HKE 18 RFP 1 3 7 6 5 4 2 8 9 10 12...

Page 17: ...ket 1 9 115491 01 115492 01 115492 01 115493 01 Air Shutter 1 10 115454 01 115454 01 115454 01 115454 02 Venturi 1 11 115452 01 115452 01 115452 01 115452 01 Valve Bracket 1 12 115488 01 115488 01 115...

Page 18: ...on the back page of this manual EQUIPMENT SHUTOFF VALVE GA5010 Equipment shutoff valve with 1 8 NPT tap Fits 1 2 pipe FIREPLACE HOOD Black GA6050 Brass GA6052 Antique Brss GA6053 Helps de ect heat awa...

Page 19: ..._____________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ _____...

Page 20: ...ostic cost labor transportation and any and all such other costs related to repairing a defective heater will be the responsibility of the owner TOTHE FULLEXTENTALLOWED BYTHE LAWOFTHE JURISDICTIONTHAT...

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