background image

www.desatech.com

114370-02C

7

INSTALLATION

Continued 

INSTALLING APPLIANCE 
ASSEMBLY

 WARNING: If installing in a 

sunken  fireplace,  special  care 

is  needed.  You  must  raise  the 

fireplace  floor  to  allow  access 

to appliance control panel. This 

will insure adequate air flow and 

guard against sooting and con-

trols being damaged. Raise fire-

place floor with noncombustible 

material.  Make  sure  material  is 

secure.

 CAUTION: Do not pick up ap-

pliance assembly by logs. This 

could damage unit. Only handle  

assembly by grates.

IMPORTANT:

 Make sure the appliance is  level. If 

unit is not level, unit will not work properly.

Installation Items Needed

•  control cover kit (provided with appliance)

•  approved flexible gas hose and fittings (provided 

with appliance) (if allowed by local codes) 

•  sealant  (resistant  to  propane/LP  gas,  not 

provided)

1.  Apply  pipe  joint  sealant  lightly  to  male 

threads of gas fitting (not provided). Connect 

approved flexible gas hose to inlet side of gas 

control valve (see Figure 5).

2.  Position appliance in fireplace. 

3.  Connect to gas supply. See 

Connecting To Gas 

Supply

.

CONNECTING TO GAS SUPPLY

  WARNING:  This  appliance 

requires  a  3/8"  NPT  (National 

Pipe Thread) inlet connection to 

the pressure regulator.

 WARNING: A qualified ser-

vice person must connect heater 

to  gas  supply.  Follow  all  local 

codes.

  CAUTION:  Never  connect 

propane/LP fireplace directly to 

the propane/LP supply. This unit 

requires  an  external  regulator 

(not supplied). Install the exter-

nal  regulator  between  the  unit 

and propane/LP supply

  WARNING:  Never  connect 

natural gas fireplace to private 

(non-utility) gas wells. This gas 

is commonly known as wellhead 

gas.

Installation Items Needed

Before installing log set, make sure you have the 

items listed below.

•  external regulator (supplied by installer)

•  piping (check local codes)

•  sealant (resistant to propane/LP gas)

•  equipment shutoff valve *

•  test gauge connection *

•  sediment trap

•  tee joint

•  pipe wrench

•  approved flexible gas line with gas co

nnector 

(if allowed by local codes) (provided)

* A CSA design-certified equipment shutoff valve 

with 1/8" NPT tap is an acceptable alternative to 

test gauge connection. Purchase the optional CSA 

design-certified equipment shutoff valve from your 

dealer. See 

Accessories

, page 17.

Figure 5 - Attaching Flexible Gas Hose to  

Gas Control Valve

Flexible Gas Hose  
(If Allowed by Local Codes)

Gas 
Control 
Valve

Summary of Contents for Design Dynamics VTD-18NV-JHB

Page 1: ...l switch do not use any phone in your building Immediatelycallyourgassupplierfromaneighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department...

Page 2: ...his appliance may be in stalled in an aftermarket permanently located manufactured mobile home where not prohib ited by local codes This appliance is only for use with the type of gas indicated on the...

Page 3: ...be present even though no odor exists 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...

Page 4: ...lified service person Note During initial operation slight smoking could occur due to log curing and the burning of manufacturing residues You may wish to add more ventilation by opening a window 7 To...

Page 5: ...o HI LO for use with hand held ON OFF remote included OF RC Converts ON OFF valve for use with hand held ON OFF remote See Accessories page 17 Installation WARNING Before installing in a solid fuel bu...

Page 6: ...p or permanent stop must be installed or the damper blade must be cut or removed Model Burner Btu Input MinIMUM Vent Opening VTD 18NV JHB VTD 18PV JHB 18 Ramp 59 000 8 dia VTD 24NV JHB VTD 24PV JHB 24...

Page 7: ...ply CONNECTING TO GAS SUPPLY WARNING This appliance requires a 3 8 NPT National Pipe Thread inlet connection to the pressure regulator WARNING A qualified ser vicepersonmustconnectheater to gas supply...

Page 8: ...t lightly to male NPT threads This will prevent excess sealant from going into pipe Excess sealant in pipe could result in clogged heater valves Figure 7 Gas Connection PurchasetheoptionalCSAdesign ce...

Page 9: ...e LP gas or opening main gas valve located on or near gas meter for natural gas or using compressed air 4 Check all joints of gas supply piping system Apply noncorrosive leak detection fluid to gas jo...

Page 10: ...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 the fire department C Us...

Page 11: ...switch selector switch to the ON position to light burners Note AUTO is not functional Figure 11 Control Knob and Ignitor Button 11 Set flame adjustment knob to any level between HI and LO Optional co...

Page 12: ...W C Inlet Gas Pressure in of water Max 10 5 W C Min 5 0 W C VTD 18PV JHB Rating Variable 59 000 Btu Hr Type Gas Propane LP Ignition Piezo Manifold Pressure 10 W C Inlet Gas Pressure in of water Max 14...

Page 13: ...T position 4 Air in gas lines when in stalled 5 Depleted gas supply pro pane LP only 6 Pilot is clogged 7 Gas regulator setting is not correct When ignitor button is pressed there is no spark at pilot...

Page 14: ...es out when control knob is released Oneorbothburnerdoesnotlight after ODS pilot is lit Delayed ignition of burner Burner backfiring during com bustion 1 Press in control knob fully 2 After pilot ligh...

Page 15: ...rs are lit White powder residue forming within burner box or on adjacent walls or furniture Remote does not function Appliance produces a clicking ticking noise just after burners are lit or shut off...

Page 16: ...rs chemicals new car pet etc See IMPORTANT statement above 2 Low fuel supply propane LP only 3 Gas leak See Warning statement at top of page 1 Not enough fresh air is avail able 2 Low line pressure 3...

Page 17: ...l numbers of your log set how log set was malfunctioning type of gas used propane LP or natural gas purchase date Usually we will ask you to return the part to the factory Parts Not Under Warranty Con...

Page 18: ...desatech com 114370 02C 18 Illustrated Parts Breakdown Models VTD 18NV JHB VTD 24NV JHB VTD 30Nv JHB 2 10 11 26 27 28 20 13 7 9 13 19 1 8 12 3 5 6 4 12 5 24 29 22 18 13 23 14 17 15 16 13 29 21 25 12...

Page 19: ...re Harness 1 17 103784 01 ON OFF Extension Knob 1 18 14512 Valve MV NG 1 14513 Valve MV LP 1 19 112804 05 Valve Bracket 1 20 114395 01 Pilot Bracket 1 114395 02 Pilot Bracket 1 21 116910 01 Brass 3 8...

Page 20: ...war ranty The heater MUST be installed by a qualified installer in accordance with all local codes and instructions furnished with the unit This warranty does not apply to parts that are not in origin...

Reviews: