Desa RCLP35B User Manual
CANADIAN PROPANE
CONSTRUCTION
HEATER
OWNER’S MANUAL
Model RCLP35B
IMPORTANT
Read and understand this manual before assembling, starting, or servicing heater.
Improper use of heater can cause serious injury. Keep this manual for future
reference.
!
GENERAL HAZARD WARNING:
FAILURE TO COMPLY WITH THE PRECAUTIONS AND INSTRUCTIONS PROVIDED WITH THIS HEATER, CAN RESULT IN DEATH,
SERIOUS BODILY INJURY AND PROPERTY LOSS OR DAMAGE
FROM HAZARDS OF FIRE, EXPLOSION, BURN, ASPHYXIATION,
CARBON MONOXIDE POISONING, AND/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.
35,000 BTU/Hr CANADIAN
PROPANE CONSTRUCTION HEATER
SAFETY
INFORMATION
WARNINGS
WARNING ICON G 001
WARNING: FIRE, BURN, INHALATION, AND EXPLOSION
HAZARD. KEEP SOLID COMBUSTIBLES, SUCH AS BUILDING MATERIALS, PAPER OR CARDBOARD, A SAFE DISTANCE
AWAY FROM THE HEATER AS
RECOMMENDED BY THE INSTRUCTIONS. NEVER USE THE
HEATER IN SPACES WHICH DO
OR MAY CONTAIN VOLATILE OR
AIRBORNE COMBUSTIBLES, OR
PRODUCTS SUCH AS GASOLINE, SOLVENTS, PAINT THINNER, DUST PARTICLES OR UNKNOWN CHEMICALS.
WARNING: NOT FOR HOME
OR RECREATIONAL VEHICLE
USE.
The heater is designed for use as a construction heater in accordance with ANSI
Z83.7•CGA2.14. Other standards govern
the use of fuel gases and heating products
for specific uses. Your local authority can
advise you about these. The primary purpose of construction heaters is to provide
temporary heating of buildings under construction, alteration or repair. Properly used,
the heater provides safe economical heating. Products of combustion are vented into
the area being heated.
We cannot foresee every use which may be
made of our heaters. Check with your local
fire safety authority if you have questions
about heater use.
Other standards govern the use of fuel gases
and heat producing products for specific
uses. Your local authorities can advise you
about these.
Carbon Monoxide Poisoning: Some
people are more affected by carbon monoxide than others. Early signs of carbon monoxide poisoning resemble the flu, with headaches, dizziness, and/or nausea. If you have.
these signs, the heater may not be working
properly. Get fresh air at once! Check for
proper ventilation and have heater serviced
Propane Gas: Propane gas is odorless. An
odor-making agent is added to propane gas.
The odor helps you detect a propane gas
leak. However, the odor added to propane
gas may fade. Propane gas may 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 heater.
• Install and use heater with care. Follow
all local ordinances and codes. In the
absence of local ordinances and codes,
refer to the Standard for Storage and
Handling of Liquefied Petroleum Gas,
ANSI/NFPA 58 and the Natural Gas
Installation Code, CAN/CGA B149.2.
This instructs on the safe storage and
handling of propane gases.
• Use only the electrical voltage and
frequency specified on model plate.
• The electrical connections and
grounding of the heater shall follow the
National Electric Code, ANSI/NFPA
70, or Canadian Electrical Code, Part 1.
• Electrical grounding instructions —
This appliance is equipped with a threeprong (grounding) plug for your
protection against shock hazard and
should be plugged directly into a
properly grounded three-prong
receptacle.
• Use only a three-prong, grounded
extension cord.
• Use only the hose and factory preset
regulator provided with the heater.
• Use only propane gas set up for vapor
withdrawal.
• Provide adequate ventilation. Before
using heater, provide at least a onesquare-foot (0.09 m2) opening of fresh,
outside air. This heater produces carbon
monoxide, which is listed by the State
of California as a reproductive toxin
under Proposition 65.
• For indoor use only. Do not use heater
outdoors.
• Do not use heater in occupied dwellings
or in living or sleeping quarters.
• Do not use heater below ground level.
Propane gas is heavier than air . If a leak
occurs, propane gas will sink to the
lowest possible level.
• Keep appliance area clear and free from
combustible materials, gasoline, paint
thinner, and other flammable vapors
and liquids. Do not use heater in areas
with high dust content.
• Minimum heater clearances from
combustibles:
Outlet: 6 Ft. (1.8 m) Sides: 2 Ft. (60 cm )
T op: 6 Ft. (1.8 m) Rear: 2 Ft. (60 cm)
• Keep heater at least six feet (2 m) from
propane tank(s). Do not point heater at
propane tank(s) within 20 feet (6 m).
•
Keep propane tank(s) below 100° F (38 °C).
• Check heater for damage before each
use. Do not use a damaged heater.
• Check hose before each use of heater.
If highly worn or cut, replace before
using heater.
• Locate heater on stable and level
surface if heater is hot or operating.
• Not intended for use on finished floors.
• Never block air inlet (rear) or air outlet
(front) of heater.
• Keep heater away from strong drafts,
water spray, rain, or dripping water.
• Do not leave heater unattended.
• Keep children and animals away from
heater.
• Never move, handle, or service a hot,
operating, or plugged-in heater. Se vere
burns may result. W ait 20 minutes after
turning heater off.
• To prevent injury, wear gloves when
handling heater.
• Never attach duct work to heater.
• Do not alter heater. Keep heater in its
original state.
• Do not use heater if altered.
• Turn off propane supply and unplug
heater when not in use.
• Use only original replacement parts.
This heater must use design-specific
parts. Do not substitute or use generic
parts. Improper replacement parts could
cause serious or fatal injuries.
2
103907
PRODUCT IDENTIFICATION
Hot Air Outlet
(Front)
Heater Base
OWNER’S MANUAL
Shell
Handle
Motor
Fan Guard
Figure 1 - 35,000 BTU/Hr Model
UNPACKING
Piezo Ignitor
Button
Automatic Control
Valve Button
Power
Cord
Inlet
Connector
Hose /Regulator
Assembly
THEORY OF OPERATION
1. Remove all packing items applied to
heater for shipment. Keep plastic cover
caps (attached to inlet connector and
hose/regulator assembly) for storage.
2. Remove all items from carton.
3. Check all items for shipping damage.
If heater is damaged, promptly inform
dealer where you bought heater.
103907
The Fuel System: The hose/regulator
assembly attaches to the propane gas supply. This provides fuel to the heater.
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.
3
The Ignition System: The piezo ignitor
lights the burner.
The Automatic Control System: This
system causes the heater to shut down if the
flame goes out.
35,000 BTU/Hr CANADIAN
PROPANE CONSTRUCTION HEATER
Combustion Chamber
Clean
Heated Air
Out (Front)
Air for Combustion
Air For Combustion Air For Heating
Figure 2 - Cross Section Operational View
Air for Heating
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/or CAN/CGA B149.2. Your local li-
brary or fire department will have this booklet.
The amount of propane gas ready for use
from propane tanks varies. Two factors decide this amount:
1. The amount of propane gas in tank(s)
2. The temperature of tank(s)
This heater is designed to operate with a
minimum 20-pound (9 kg) propane tank.
You may need two or more tanks or one
larger tank in colder weather. Use a 100pound (45 kg) tank for longer operation or
in very cold weather. Less gas is vaporized
at lower temperatures. 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).
Average Temp.°F (°C) No. Of Tanks
At Tank Location (100lb/45kg)
40 (4.4) 1
32 (0) 1
20 (6.7) 1
10 (-12) 1
0 (-18) 1
-10 (-23) 2
-20 (-29) 2
Fan
Motor
Cool Air In
(Back)
Hose/Regulator
Assembly
INSTALLATION
WARNING: Review and understand the warnings in the Safety
Information Section, page 2. They
are needed to safely operate this
heater. Follow all local codes
when using this heater.
WARNING: Test all gas piping and connections for leaks
after installation 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.
1. Provide propane supply system (see
Propane Supply).
2. Connect POL fitting on hose/regulator
assembly to propane tank(s). T urn POL
fitting counterclockwise into threads on
tank. Tighten firmly using wrench.
IMPORTANT
that hose leaving the regulator is in a
horizontal position (see Figure 3). This
places the regulator vent in the proper
position to protect it from the weather.
Propane
Supply
Valve
Propane
Tank
Figure 3 - Regulator Position
: Position regulator so
Regulator
POL
Hose
3. Connect hose to inlet connector.
Tighten firmly using a wrench.
IMPORTANT
needed. Install extra hose or piping between
hose/regulator assembly and propane tank.
You must use the regulator supplied with
heater.
Inlet Connector
Figure 4 - Hose and Inlet Connector
4. Open propane supply valve on propane
tank(s) slowly.
slowly, excess-flow check valve on
propane tank may stop gas flow . If this
happens, close propane supply valve
and open again slowly.
5. Check all connections for leaks. Apply
mixture of liquid soap and water to gas
joints. Bubbles forming show a leak
that must be corrected.
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 that must be corrected. Correct all leaks at once.
6. Close propane supply valve.
: Use extra hose or piping if
Hose
Note:
If not opened
VENTILATION
WARNING: Provide at least a
one square foot (0.09m2) opening
of fresh, outside air while running heater. If proper fresh, outside air ventilation is not provided, carbon monoxide poisoning can occur. Provide proper
fresh, outside air ventilation before running heater.
4
103907
OWNER’S MANUAL
OPERATION
WARNING: Review and understand the warnings in the Safety
Information section, page 2. They
are needed to safely operate this
heater. Follow all local codes
when using this heater.
To Start Heater
1. Follow all installation, ventilation, and
safety information.
2. Locate heater on stable and level
surface. Make sure strong drafts do not
blow into front or rear of heater.
3. Plug power cord of heater into a threeprong, grounded extension cord.
Extension cord must be at least six feet
(2 m) long. Extension cord must be UL/
CSA listed.
Extension Cord Wire Size
Requirements
Up to 50 feet (15 m) long, use 18 AWG
rated cord.
51 to 100 feet (16 to 30 m) long, use 16
AWG rated cord.
101 to 200 feet (31 to 60 m) long, use
14 AWG rated cord.
4. Plug extension cord into a 120 volt/60
hertz, 3-hole, grounded outlet. Motor
will start. Fan will turn, forcing air out
front of heater.
5. Open propane supply valve on propane
tank(s) slowly.
Note
: If not opened slowly , excess-flow
check valve on propane tank may stop
gas flow . If this happens, close propane
supply valve and open again slowly.
WARNING: Be sure motor and
fan are running before pushing
in automatic control valve button. Flames could flash outside
heater if motor and fan are not
running.
6. Push in and hold automatic control
valve button (see Figure 5). Push piezo
ignitor button (see Figure 5). You may
need to push piezo ignitor button 3-8
times until the burner lights. When
burner lights, keep automatic control
valve button pushed in. Release b utton
after 30 seconds.
Note
: If heater fails to ignite, hose may
have air in it. If so, keep automatic
control valve button pressed and wait
20 seconds. Release automatic control
valve button and wait 20 seconds for
unburned fuel to exit heater . Repeat step 6.
Piezo
Ignitor
Button
Automatic
Control Valve
Button
Figure 5 - Automatic Control Valve Button
and Piezo Ignitor Button
Notice: If heater is unplugged or power
outage occurs while heater is running, the
thermal limit device will stop fuel flow. A
few seconds occur before the thermal limit
device activates. During this short time,
flames may appear outside the heater. This
is normal. The flames will go out when
thermal limit device activates.
To Stop Heater
1. Tightly close propane supply valve on
propane tank(s). Allow heater to burn
remaining fuel in hose.
2. Wait a few seconds. Heater will burn
gas left in supply hose.
3. Unplug heater.
To Restart Heater
1. W ait fiv e minutes after stopping heater .
2. Repeat steps under To Start Heater.
STORAGE
CAUTION: Disconnect heater
from propane supply tank(s).
1. Store propane tank(s) in safe manner.
See Chapter 5 of Standard for Storag e
and Handling of Liquefied Petroleum
Gases, ANSI/NFPA 58 and/or CAN/
CGA B149.2. Follow all local codes.
Always store propane tanks outdoors.
2. Place plastic cover caps over brass
fittings on inlet connector and hose/
regulator assembly.
3. Store in dry, clean, and safe place. Do
not store hose/regulator assembly
inside heater combustion chamber.
4. When taking heater out of storage,
always check inside of heater. Insects
and small animals may place foreign
objects in heater. Remove motor and
other internal parts if needed to remove
foreign objects (see Service Procedur es,
page 7).
MAINTENANCE
WARNINGS
• Never service heater while it is
plugged in, connected to propane supply, operating, or hot.
Severe burns and electrical
shock can occur.
• Keep heater clear and free from
combustible materials, gasoline, and other flammable vapors and liquids.
• Do not block the flow of combustion or ventilation air.
1. Keep heater clean. Clean heater
annually or as needed to remove dust
and debris. If heater is dirty or dusty,
clean heater with a damp cloth. Use
household cleaners on difficult spots.
2. Inspect heater before each use. Check
connections for leaks. Apply mixture
of liquid soap and water to connections.
Bubbles forming show a leak. Correct
all leaks at once.
3. Inspect hose/regulator assembly before
each use. If hose is highly worn or cut,
replace.
4. Have heater inspected yearly by a
qualified service agency.
5. Keep inside of heater free from
combustible and foreign objects.
Remove motor and other internal parts
if needed to clean inside of heater (see
Service Procedures, page 7.
6. Clean fan blades each season or as
needed (see Fan, page 8).
103907
5
35,000 BTU/Hr CANADIAN
PROPANE CONSTRUCTION HEATER
TROUBLESHOOTING
WARNING: Never service heater while it is plugged in, connected to
propane supply, operating, or hot. Severe burns and electrical shock
can occur.
OBSERVED FAULT POSSIBLE CAUSE REMEDY
Fan does not turn when heater
is plugged in
Heater will not ignite.
No electrical power to heater
Fan hitting inside of heater shell
Fan blades bent
Defective motor
User did not follow installation or operation instructions properly
No spark at ignitor. To test for spark,
follow step 9 under Ignitor, page 9. If you
see spark at ignitor, have heater serviced
by qualified service person. If no spark
seen:
A) Loose or disconnected ignitor wire
B) Wrong spark gap
C) Piezo ignitor loose
D) Bad ignitor electrode
Check voltage to electrical outlet. If voltage is
good, check heater power cord for breaks.
Adjust motor/fan guard to keep fan from hitting
inside of heater shell. Bend fan guard if necessary.
Replace fan. See Fan, page 7.
Replace motor. See Motor, page 7.
Repeat installation and operation instructions. See
Installation, page 4 and Operation, page 5.
A) Check ignitor wire. Tighten or reattach loose
ignitor wire. See Figure 13, page 8 for ignitor wire
location.
B) Set gap between ignitor electrode and target
plate to .17" (4.3 mm).
C) Tighten nut holding piezo ignitor to base of
heater.
D) Replace ignitor electrode. See Ignitor, page 8.
Heater shuts down while running.
High surrounding air temperature causing thermal limit device to shut down
heater.
Restricted air flow
Damaged fan
Excessive dust or debris in surrounding
area
6
This can happen when running heater in temperatures above 85°F (29°C). Run heater in cooler
temperatures.
Check heater inlet and outlet. Remove any obstructions.
Replace fan. See Fan, page 7.
Clean heater. See Maintenance, page 5.
WARNING: Use only in areas free of
high dust content.
103907
OWNER’S MANUAL
SERVICE
PROCEDURES
WARNING: Never service
heater while it is plugged in, connected to propane supply, operating, or hot. Severe burns and
electrical shock can occur.
ELECTRICAL SYSTEM
The entire electrical system for this heater is
contained within the motor. If any part of the
electrical system is damaged, you must replace motor.
MOTOR
1. Remove three screws that attach fan
guard to heater shell.
2. Remove motor and fan guard from
heater shell (see Figure 6).
4. Remove fan. Be careful not to damage
the fan blade pitch.
5. Remove three nuts that attach fan guard
to motor using nut-driver. Remove fan
guard from motor (see Figure 8).
Figure 8 - Removing or Attaching Fan
Guard from Motor
6. Discard old motor.
7. Attach fan guard to new motor with
three nuts. When attaching fan guard
to motor, you must position power cord
as shown in Figure 8. Tighten nuts
firmly.
8. Place fan onto motor shaft of new
motor.
IMPORTANT
motor shaft, make sure part number
stamped on fan is facing motor . Attach
fan nut to end of motor shaft. Tighten
fan nut firmly.
9. Place motor and fan guard into rear of
heater shell. Make sure power cord is
properly located (see Figure 9).
: When placing fan onto
10. Insert three screws through heater shell
and into fan guard. Tighten screws
firmly.
FAN
1. Remove three screws that attach fan
guard to heater shell.
2. Remove motor and fan guard from
heater shell (see Figure 10).
Figure 10 - Removing Motor and Fan
Guard from Heater
3. Use pliers to remove the fan nut from
front of motor shaft (see Figure 11).
Fan
Nut
Figure 6 - Removing Motor and Fan Guard
from Heater
3. Use pliers to remove the fan nut from
front of motor shaft (see Figure 7).
Fan
Nut
Figure 7 - Removing Fan Nut from Motor
Shaft
103907
Figure 11 - Removing Fan Nut from Motor
Shaft
4a. If replacing fan, remove old fan and
discard. Go to step 7.
4b. If cleaning fan, remove fan. Be careful
not to damage the fan blade pitch.
5. Clean fan using soft cloth moistened
with kerosene or solvent.
6. Dry fan thoroughly.
Figure 9 - Replacing Motor and Fan Guard
into Heater
Continued
7
35,000 BTU/Hr CANADIAN
PROPANE CONSTRUCTION HEATER
SERVICE
PROCEDURES
(Continued)
Piezo
7. Place fan onto motor shaft.
IMPORTANT
motor shaft, make sure part number
stamped on fan is facing motor.
8. Attach fan nut to end of motor shaft.
Tighten fan nut firmly.
9. Place motor and fan guard into rear of
heater shell. Make sure power cord is
properly located (see Figure 12).
: When placing fan onto
Ignitor Wire
Figure 13 - Removing Ignitor Wire from
Piezo Ignitor
Bushing
Underside
of Heater
Base
Figure 15 - Clearance between Ignitor
Electrode and Target Plate
Target
Gap
Ignitor
Figure 12 - Replacing Motor and Fan
Guard into Heater
10. Insert three screws through heater shell
and into fan guard. Tighten screws
firmly.
IGNITOR
1. Remove motor and fan guard from
hea
ter (see Motor, page 7, steps 1 and 2).
2. Remove black ignitor wire from piezo
ignitor. Access ignitor wire through
underside of heater base (see Figure
13). Push wire up through bushing in
heater shell.
3. Remove ignitor mounting screw from
rear head using nut-driver or standard
screwdriver (see Figure 14).
Rear Head
Ignitor
Ignitor
Mounting
Figure 14 - Removing Ignitor Mounting
Screw and Ignitor
4. Remove ignitor from rear head.
5. Install new ignitor. Attach ignitor to rear
head with ignitor mounting screw.
6. Run ignitor wire from new ignitor
through bushing in heater shell. Attach
ignitor wire to piezo ignitor.
7. Set gap between ignitor electrode and
targ
et plate to .17" (4.3
(see Figure 15).
8. Test for spark.
mm)
WARNING: Make sure heater
is disconnected from propane
supply. Heater could ignite causing severe burns.
Push piezo ignitor button and watch
forspark between ignitor electrode and
target plate.
9. Place motor and fan guard into rear of
heater shell (see Motor, page 7, steps 9
and 10).
8
103907
OWNER’S MANUAL
SPECIFICATIONS
Output Rating (BTU/Hr) 35,000 (33,175 kJ/Hr)
Fuel Propane Vapor Only
Fuel Consumption
Gallons (Liters)/Hour .38 (1.44)
Pounds (Kg)/Hour 1.6 (0.73)
Supply Pressure To Regulator
Minimum (for purposes 10 psi (69 kPa)
of input adjustment)
Maximum Tank Pressure or 200 psi (1380 kPa)
Regulator Outlet Pressure 11" (28 cm) WC
Manifold Pressure 10.8" (27.4 cm) WC
Hot Air Output
(CFM Approx) 175 (4.95 m3)
Motor 2735 RPM
Electric Input 120 volt/60 hertz
Amperage 2
Ignition Manual, Piezo
Weight
Heater 14.5 lb (6.58 kg)
Shipping 16 lb (7.27 kg)
Size - L x W x H
Heater 18.5 x 7.7 x 12.8 in (47 x 19.6 x 32.5 cm)
Temperature Range for Heater Operation -20° F to 85° F (-6.7 to 29.5°C)*
* When running heater in temperatures above 85° F (29.5°C), high internal temperatures
may cause thermal limit device to shut down heater.
ACCESSORIES
Purchase accessories and parts from your
nearest dealer or service center. If your
dealer or service center can not supply an
accessory or part, call DESA Industries’
Parts Department at 905-826-8010. You
can also write to the address listed on the
back page of this manual.
Part
Number Description
LPA1020 10' Rubber Hose with
Brass Fitting
U.L. listed.
LPA2110 Propane Gas Regulator
U.L. listed.
LPA3090 Hose/Regulator Assembly
U.L. listed.
LPA4020 Fuel Gas Connector
Connects regulator to all
standard propane tanks.
U.L. and A.G.A. listed.
TECHNICAL
SERVICE
You may have further questions about this
heater. If so, contact DESA International’s
Technical Service Department at 1-800-323-
5190.
REPLACEMENT
PARTS
WARNING: Use only original
replacement parts. This heater
must use design-specific parts.
Do not substitute or use generic
parts. Improper replacement parts
could cause serious or fatal injuries. This will also protect your
warranty coverage for parts replaced under warranty.
PARTS UNDER WARRANTY
Contact authorized dealers of this product.
If they cannot supply original replacement
part(s), call DESA Industries at 1-905-826-
8010. When calling DESA Industries, 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 the
defective part to the factory.
PARTS NOT UNDER
WARRANTY
Contact authorized dealers of this product.
If they cannot supply original replacement
part(s), call DESA Industries’ Parts Department at 905-826-8010. When calling DESA
Industries, have ready:
• model number of your heater
• the replacement part number
103907
9
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