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4

105342

100,000 Btu/Hr
PROPANE CONSTRUCTION HEATER

WARNING: Follow the mini-

mum fresh, outside air ventila-
tion requirements.  If proper fresh,
outside air ventilation is not pro-
vided, carbon monoxide poison-
ing can occur. Provide proper
fresh, outside air ventilation be-
fore running heater.

Provide a fresh air opening of at least three
square feet for each 100,000 Btu/Hr rating.
Provide extra fresh air if more heaters are
being used.

VENTILATION

Figure 4 - Hose and Inlet Connector

Figure 3 - Regulator With Vent Pointing
Down

INSTALLATION

 WARNING: Review and un-

derstand the warnings in the
Safety Information section, page
2. They are needed to safely op-
erate this heater. Follow all local
codes when using this heater.

1.

Provide propane supply system (see
Propane Supply above).

2.

Connect fuel gas connector fitting on
hose/regulator assembly to propane
tank(s). Turn counterclockwise into
threads on tank valve. Tighten firmly
using wrench. 

IMPORTANT:

 Tighten

regulator with vent pointing down.
Pointing vent down protects regulator
from weather damage.

 WARNING: Test all gas pip-

ing and connections for leaks
after installing or servicing. 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.

PROPANE SUPPLY

Propane gas and propane tank(s) are to be
furnished by the user.

Use this heater only with a propane vapor
withdrawal supply system. See Chapter 5 of
the  Standard for Storage and Handling of
Liquefied Petroleum Gas, ANSI/NFPA 58
and the Propane Installation Code CAN/
CGA B149.2
. Your local library or fire de-
partment will have this booklet.

The amount of propane gas ready for use
from propane tanks varies. Two factors de-
cide this amount:

1.

The amount of propane gas in tank(s)

2.

The temperature of tank(s)

The chart below shows the number of 100
pound tanks needed to run this heater.

Temperature(

°

F)

Number of tanks,

at Tank

100,000 Btu/Hr

32

°

2

20

°

2

10

°

3

0

°

3

-10

°

(Use larger tank)

-20

°

(Use larger tank)

Less gas is vaporized at lower temperatures.
You may need two or more 100 pound tanks
or one larger tank in colder weather. Your
local propane gas dealer will help you select
the proper supply system. The minimum
surrounding air temperature rating for each
heater is -20

°

F (-29

°

C).

Hose

Regulator

Vent
(pointing
down)

Fuel Gas
Connector

Supply
Valve

Propane
Tank

Hose

100,000 Btu/Hr
Model Shown

Inlet
Connector

3.

Connect hose to inlet connector.
Tighten firmly using a wrench.

IMPORTANT:

 Extra hose or piping

may be used if needed. Install extra
hose or piping between hose/regulator
assembly and propane tank. You must
use the regulator supplied with heater.

4.

Open propane supply valve on propane
tank(s) slowly. 

Note:

 If not opened

slowly, excess-flow check valve on
propane tank will stop gas flow. If this
happens, close propane supply valve
and open again slowly.

5.

Check all connections for leaks.

6.

Close propane supply valve.

Summary of Contents for RM100LP

Page 1: ...D OR ELECTRICAL SHOCK ONLY PERSONS WHO CAN UNDERSTAND AND FOLLOW THE INSTRUCTIONS SHOULD USE OR SERVICE THIS HEATER IF YOU NEED ASSISTANCE OR HEATER INFORMATION SUCH AS AN INSTRUCTIONS MANUAL LABELS ETC CONTACT THE MANUFACTURER RM100LP PROPANE CONSTRUCTION HEATERS OWNER S MANUAL IMPORTANT Read and understand this manual before assem bling starting or servicing heater Improper use of heater can cau...

Page 2: ...nadian Electrical Code Part 1 Electrical grounding instructions This appliance is equipped with a three prong grounding plug for your protection against shock hazard and should be plugged directly into a properly grounded three prong receptacle or extension cord Approved by the New York City Fire Department under Certificate of Approval 4953 To be used only at construction site with applicable New...

Page 3: ...automatic control valve and out the nozzle The Air System The motor turns the fan The fan pushes air into and around the combustion chamber This air is heated and provides a stream of clean hot air The Ignition System The spark trans former and ignitor lights the main burner The Safety Control System This sys tem causes the heater to shut down if the flame goes out Figure 2 Cross Section Operation...

Page 4: ... by the user Use this heater only with a propane vapor withdrawal supply system See Chapter 5 of the Standard for Storage and Handling of Liquefied Petroleum Gas ANSI NFPA 58 and the Propane Installation Code CAN CGA B149 2 Your local library or fire de partment will have this booklet The amount of propane gas ready for use from propane tanks varies Two factors de cide this amount 1 The amount of ...

Page 5: ...r goes out turn off gas Turn control knob fully clockwise to the lowest position Check fuel supply If adequate fuel is available restart heater beginning at step 1 TO STOP HEATER 1 Tightly close propane supply valve on propane tank s 2 Wait a few seconds Heater will burn gas left in supply hoses 3 Turn control knob to the OFF position 4 Unplug heater STORAGE 1 Store propane tank s in safe manner S...

Page 6: ...ee Fan page 7 5 Clean heater See Maintenance page 5 WARNING Use only in areas free of high dust content 1 No electrical power to heater 2 Fan hitting inside of heater shell 3 Fan blades bent 4 Defective motor 1 User did not follow installation or operation instructions properly 2 No spark at ignitor To test for spark follow step 8 under Ignitor page 8 If you see spark at ignitor have heater servic...

Page 7: ...Figure 8 5 Place setscrew on flat of shaft Tighten setscrew firmly 40 50 inch pounds 6 Place motor motor mount and fan guard into rear of heater shell see Motor steps 14 through 18 Motor shaft Fan Setscrew Figure 8 Fan Motor Shaft and Setscrew Location Figure 9 Fan Cross Section Fan Hub Setscrew Motor Transformer Green Lead Continued 6 Carefully pull motor and fan out of shell IMPORTANT Be careful...

Page 8: ... ignitor electrode and nozzle to 13 15 see Figure 12 8 Test for spark WARNING Make sure heater is disconnected from propane supply Heater could ignite caus ing severe burns Plug into extension cord and watch for spark between ignitor electrode and nozzle 9 Place motor motor mount and fan guard into rear of heater shell see Motor page 7 steps 14 through 18 ACCESSORIES Purchase accessories and parts...

Page 9: ...ER WARRANTY Contact authorized dealers of this product If they can t supply original replacement part s either contact your nearest Parts Central or call DESA International s Tech nical Service Department at 1 800 323 5190 When calling DESA International have ready your name your address model number of your heater how heater was malfunctioning purchase date In most cases we will ask you to return...

Page 10: ...NE CONSTRUCTION HEATER ILLUSTRATED PARTS BREAKDOWN 100 000 Btu Hr 2 5 6 7 21 NOTE Screws are standard hardware items 14 15 2 12 13 16 2 8 9 10 18 19 20 21 4 11 26 3 1 2 22 23 17 29 30 32 34 35 33 26 25 31 32 33 27 28 28 31 27 24 11 ...

Page 11: ...3 Control Knob 1 18 101732 04 Thermal Switch Kit Incl Wire Assemblies 1 19 102487 01 lgnitor Electrode 1 20 097806 02 lgnitor Cable 1 21 M11084 38 Screw Hex TPG 8 18 X 38 2 22 098219 17 Power Cord 1 23 M11143 1 Strain Relief Bushing 1 24 103846 01 Valve Kit 1 25 102601 01 Ignition Control 1 26 079010 30 Wire Assembly Relay 1 27 079010 19 Wire Assembly Relay 1 28 097951 14 Wire Assembly Relay 1 29 ...

Page 12: ... allow the exclusion or limitation of incidental or consequential damages or limitations or exclusions may not apply to you This Limited Warranty gives you specific legal rights and you may also have other rights which vary from state to state WARRANTY AND REPAIR SERVICE LIMITED WARRANTY KEEP THIS WARRANTY For information write DESA International P O Box 90004 Bowling Green Kentucky 42102 9004 ATT...

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