background image

www.desatech.com

115481-01A

6

PLACEMENT OF APPLIANCE

Center the appliance in the fireplace. Make certain 

the grate front feet sit inside the front edge of 

the fireplace and that there is adequate clearance 

around the appliance for access and operation.

CONNECTING TO GAS SUPPLY

 WARNING: A qualified service 

person must connect heater to gas 

supply. Follow all local codes.

Installation Items Needed

Before installing heater, make sure you have the 

items listed below.
•  external regulator (propane/LP models only)
•  piping (check local codes)
•  sealant (resistant to propane/LP gas)
•  equipment shutoff valve
•  test gauge connection
•  sediment trap
•  tee joint
•  pipe wrench
For propane/LP units, the installer must supply 

an external regulator. The external regulator will 

reduce incoming gas pressure. You must reduce 

incoming gas pressure to between 11 and 14 inches 

of water. If you do not reduce incoming gas pres-

sure, heater regulator damage could occur. Install 

external regulator with the vent pointing down as 

shown in Figure 3. Pointing the vent down protects 

it from freezing rain or sleet.

  WARNING:  Connecting 

directly to an unregulated 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 

Manufactured 

Fireplace

Masonry 

Fireplace

Damper

Damper 
Clamp

Damper

Damper 
Clamp

Damper

VENTING SPECIFICATIONS FOR 
INSTALLATION

The fireplace chimney flue and vent must be draft-

ing properly. To check the vent for proper drafting: 

Light a tightly rolled newspaper on one end and 

place it at the inside front edge of the fireplace. 

Observe the smoke and be sure the vent is properly 

drawing it up the chimney. If the smoke spills out 

into the room, extinguish the flame and remove any 

obstruction until proper venting is achieved.
The chimney flue damper must be fixed open to 

provide a minimum of 29 square inch flue opein-

ing at all times during operation of the log set. A 

damper clamp can be used to secure the damper 

(see Accessories, page 18). See the 

National Fuel 

Gas Code ANSI Z223.1/NFPA 54, Section 6.6 

for 

details about minimum flue size.

INSTALLING DAMPER CLAMP

Secure the damper stop clam to the edge of the 

damper as shown in Figure 2. If for any reason this 

clamp doesn't work on your fireplace, another suit-

able clamp or permanent stop must be iinstalled, or 

the damper blade must be cut or removed.

INSTALLATION

Continued 

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...

Reviews: