Vanguard VN1800TB Owner'S Operation And Installation Manual Download Page 11

11

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OWNER’S MANUAL

CHECKING GAS
CONNECTIONS

Pressure Testing Gas Supply
Piping System

Test Pressures In Excess Of 1/2 PSIG
(3.5 kPA)

1.

Disconnect appliance with its appliance
main gas valve (control valve) and equip-
ment shutoff valve from gas supply pip-
ing system. Pressures in excess of 1/2 psig
will damage heater regulator.

2.

Cap off open end of gas pipe where
equipment shutoff valve was con-
nected.

3.

Pressurize supply piping system by
either using compressed air or open-
ing main gas valve located on or near
gas meter.

4.

Check all joints of gas supply piping
system. Apply mixture of liquid soap
and water to gas joints. Bubbles form-
ing show a leak.

5.

Correct all leaks at once.

6.

Reconnect heater and equipment
shutoff valve to gas supply. Check re-
connected fittings for leaks.

Test Pressures Equal To or Less Than
1/2 PSIG (3.5 kPA)

1.

Close  equipment shutoff valve (see
Figure 13).

2.

Pressurize supply piping system by ei-
ther using compressed air or opening
main gas valve located on or near gas
meter.

 WARNING: Never use an open

flame to check for a leak. Apply a
mixture of liquid soap and water
to all joints. Bubbles forming
show a leak. Correct all leaks at
once.

 WARNING: Test all gas pip-

ing and connections for leaks
after installing or servicing. Cor-
rect all leaks at once.

3.

Check all joints from gas meter to
equipment shutoff valve (see Figure
14). Apply mixture of liquid soap and
water to gas joints. Bubbles forming
show a leak.

4.

Correct all leaks at once.

Pressure Testing Heater Gas
Connections

1.

Open equipment shutoff valve (see Fig-
ure 13).

2.

Open main gas valve located on or near
gas meter.

3.

Make sure control knob of heater is in
the OFF position.

4.

Check all joints from equipment shutoff
valve to control valve (see Figure 14).
Apply mixture of liquid soap and wa-
ter to gas joints. Bubbles forming show
a leak.

5.

Correct all leaks at once.

6.

Light heater (see Operating Heater,
pages ll through 13). Check the rest of
the internal joints for leaks.

7.

Turn off heater (see To Turn Off Gas to
Appliance
, page 12).

8.

Replace front panel.

O

POS

P

Figure 13 - Equipment Shutoff Valve

Equipment
Shutoff
Valve

Closed

Figure 14 - Checking Gas Joints

Equipment
Shutoff
Valve

Gas Meter

Control Valve Location

Open

OPERATING
HEATER

FOR YOUR SAFETY

READ BEFORE

LIGHTING

A. This appliance has a pilot which must

be lighted by hand. When lighting the
pilot, follow these instructions exactly.

B. BEFORE LIGHTING smell all

around the appliance area for gas. Be
sure to smell next to the floor because
some gas is heavier than air and will
settle on the floor.

WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electric switch; do

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 sup-

plier, call the fire department.

C. Use only your hand to push in or turn

the gas control knob. Never use tools.
If the knob will not push in or turn
by hand, don’t try to repair it, call a
qualified service technician or gas
supplier. Force or attempted repair
may result in a fire or explosion.

D. Do not use this appliance if any part

has been under water. Immediately
call a qualified service technician
to inspect the appliance and to re-
place any part of the control sys-
tem and any gas control which has
been under water.

 WARNING: If you do not fol-

low these instructions exactly, a
fire or explosion may result caus-
ing property damage, personal
injury or loss of life.

INSTALLATION

Continued

Continued

Summary of Contents for VN1800TB

Page 1: ...er service agency or the gas supplier WARNING This is an unvented gas fired heater It uses air oxy gen from the room in which it is installed Provisions for ad equate combustion and ventila tion air m...

Page 2: ...esh outside air ven tilation to run properly This heater has an Oxygen Depletion Sensing ODS safety shutoff system The ODS shuts down the heater if not enough fresh air is available See Fresh Air for...

Page 3: ...Knob PRODUCT FEATURES SAFETY DEVICE This heater has a pilot with an Oxygen Depletion Sensing ODS safety shutoff system The ODS pilot is a required feature for vent free room heaters The ODS pilot shu...

Page 4: ...rating of one perm 6 x 10 11 kg per pa sec m2 or less with open ings gasketed or sealed and b weather stripping has been added on openable windows and doors and c caulking or sealants are applied to a...

Page 5: ...t include direct vent gas appliances Direct vent draws combustion air from the outdoors and vents to the outdoors 4 Compare the maximum Btu Hr the space can support with the actual amount of Btu Hr us...

Page 6: ...pace To Crawl Space To Attic AIR FOR COMBUSTION AND VENTILATION Continued Or Remove Door into Adjoining Room Option 3 Ventilation Grills Into Adjoining Room Option 2 12 12 Ventilation Grills into Adjo...

Page 7: ...RTANT Vent free heaters add mois ture to the air Although this is beneficial installing heater in rooms without enough ventilationairmaycausemildewtoformfrom too much moisture See Fresh Air for Com bu...

Page 8: ...VN3000TB Model VN1800TB Figure 7 Mounting Bracket Clearances 2 Mark screw locations on wall see Fig ure 7 Note Only mark last hole on each end of mounting bracket Insert mounting screws through these...

Page 9: ...oles at marked locations using 9 64 drill bit 2 Place mounting bracket onto wall Line up last hole on each end of bracket with holes drilled in wall 3 Insert mounting screws through bracket and into w...

Page 10: ...o gas pip ing and or fittings CAUTION Usepipejointseal ant that is resistant to liquid pe troleum LP gas IMPORTANT Check gas line pressure be fore connecting heater to gas line Gas line pressure must...

Page 11: ...F position 4 Check all joints from equipment shutoff valve to control valve see Figure 14 Apply mixture of liquid soap and wa ter to gas joints Bubbles forming show a leak 5 Correct all leaks at once...

Page 12: ...button This will light pilot The pilot is at tached to the front of burner If needed keep pressing ignitor but ton until pilot lights Note If pilot does not stay lit refer to Troubleshooting pages 14...

Page 13: ...ry compressed air in a can You can use a vacuum cleaner in the blow position If using compressed air in a can pleasefollowthedirectionsonthecan If you don t follow directions on the can you could dama...

Page 14: ...or cable if pinched by any metal or tubing Keep ignitor cable dry 5 Replace ignitor cable 6 Replace control valve piezo is part of control valve 7 Tighten nut holding piezo ignitor Nut is located insi...

Page 15: ...burner orifice s 2 Replace burner 3 Replace gas regulator 1 Replace burner 2 Contact local natural gas company 3 Turn control knob until it locks at de sired setting 1 Problem will stop after a few ho...

Page 16: ...ERVED PROBLEM Heater produces unwanted odors Heater shuts off in use ODS operates Gas odor even when control knob is in OFF position Gas odor during combustion Moisture condensationnoticedonwindows RE...

Page 17: ...ntact your local natural gas supplier REPLACEMENT PARTS Note Use only original replacement parts Thiswillprotectyourwarrantycoveragefor parts replaced under warranty PARTS UNDER WARRANTY Contact autho...

Page 18: ...820 INFRARED NATURAL GAS HEATER 1 2 3 11 6 4 7 5 6 12 13 9 10 15 14 8 ILLUSTRATED PARTS BREAKDOWN VN1800TB BURNER ASSEMBLY 13 1 13 2 13 4 13 3 13 5 13 10 13 6 13 8 13 7 13 3 13 9 13 6 13 12 13 11 ODS...

Page 19: ...h Pressure Tap 1 10 098303 02 Screw 6 x 3 8 2 11 104617 10 Cabinet Assembly 1 12 097159 04 Piezo Ignitor Snap In 1 13 See Detail Burner Assembly 1 13 1 099218 06 Burner 1 13 2 099056 03 Injector Plaqu...

Page 20: ...NFRARED NATURAL GAS HEATER ILLUSTRATED PARTS BREAKDOWN VN3000TB 13 12 13 11 ODS PILOT BURNER ASSEMBLY 13 1 13 4 13 2 13 5 13 3 13 3 13 8 13 4 13 6 13 6 13 9 13 10 13 7 1 2 3 11 6 4 8 5 6 12 13 9 10 14...

Page 21: ...essure Tap 1 10 098303 02 Screw 6 x 3 8 2 11 104617 11 Cabinet Assembly 1 12 097159 04 Piezo Ignitor Snap In 1 13 See Detail Burner Assembly 1 13 1 099218 07 Burner 1 13 2 099056 02 Injector Plaque B...

Page 22: ...F AUTO ACCESSORIES Purchasetheseheateraccessoriesfromyour local dealer If they can not supply these accessories callDESAInternational sParts Department at 1 800 972 7879 or write to the address listed...

Page 23: ...___________________ _______________________________________________________________________________________________ ____________________________________________________________________________________...

Page 24: ...nit Thiswarrantydoesnotapplytopartsthatarenotinoriginalconditionbecauseofnormalwearandtear orpartsthatfailorbecome damaged as a result of misuse accidents lack of proper maintenance or defects caused...

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