Desa RCLP30 User Manual
CANADIAN PROPANE CONSTRUCTION FORCED AIR HEATER
OWNER’S MANUAL
MODEL RCLP30
30,000 BTU/HR
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.
TABLE OF CONTENTS
Safety Information ............................................... 2
Unpacking ........................................................... 3
Product Identification ........................................... 3
Theory of Operation ............................................ 3
Assembly ............................................................. 4
Propane Supply ................................................... 4
Ventilation ............................................................ 4
Installation ........................................................... 5
Operation ............................................................. 5
Storage ................................................................ 6
Save this manual for future reference.
For more information, visit www.desatech.com
Maintenance ........................................................ 6
Troubleshooting ................................................... 7
Technical Service ................................................ 7
Accessory ............................................................ 7
Service Procedures ............................................. 8
Specifications ......................................................
Illustrated Parts Breakdown and Parts List ....... 10
Replacement Parts .............................................11
Warranty and Repair Service ............................ 12
9
SAFETY INFORMATION
WARNING: This product
contains and/or generates
chemicals known to the State
of California to cause cancer or
birth defects or other reproductive harm.
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 prod
ucts 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 au
thority if you have questions about heater use.
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.
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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 warn
ings. Keep this manual for reference. It is your
guide to safe and proper operation of this heater.
1. 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 Lique
fied 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.
2. Use only the electrical voltage and frequency
specified on model plate.
3. The electrical connections and grounding of
the heater shall follow the National Electric
Code, ANSI/NFPA 70 or the Canadian Electri
cal Code, Part 1.
4. Electrical grounding instructions — This appli
ance 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.
5. Use only a three-prong, grounded extension
cord.
6. Use only the hose and factory preset regulator
provided with the heater.
7. Use only propane gas set up for vapor with
drawal.
8. Provide adequate ventilation. Before using
heater, provide at least a 1 ft
ing of fresh, outside air.
9. For indoor use only. Do not use heater out
doors.
10. Do not use heater in occupied dwellings or in
living or sleeping quarters.
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11. Do not use heater in a basement or below
ground level. Propane gas is heavier than air.
If a leak occurs, propane gas will sink to the
lowest possible level.
12. Keep appliance area clear and free from com
bustible materials, gasoline, paint thinner and
other flammable vapors and liquids. Dust is
combustible. Do not use heater in areas with
high dust content.
13. Minimum heater clearances from combus
tibles: Outlet: 6 ft. (1.8 m), Sides: 2 ft. (60
cm), Top: 6 ft. (1.8 m), Rear: 2 ft. (60 cm).
2
(0.09 m2) open-
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104787-01D2
SAFETY INFORMATION
Air For Combustion
Air For Heating
Continued
14. Keep heater at least 6 feet (1.8 m) from propane tank(s). Do not point heater at propane
tank(s) within 20 feet (6 m).
15. Keep propane tank(s) below 100° F (38˚ C).
16. Check heater for damage before each use. Do
not use a damaged heater.
17. Check hose before each use of heater. If highly
worn or cut, replace before using heater.
18. Do not alter heater. Keep heater in its original
state.
19. Do not use heater if altered.
20. Locate heater on stable and level surface if
heater is hot or operating.
21. Not intended for use on finished floors.
22. Never block air inlet (rear) or air outlet (front)
of heater.
23. Keep heater away from strong drafts, water
spray, rain or dripping water.
24. Do not leave heater unattended.
25. Keep child ren and animals away from
heater.
26. Never move, handle or service a hot, operating
or plugged-in heater. Severe burns may result.
Wait 15 minutes after turning heater off.
27. To prevent injury, wear gloves when handling
heater.
28. Never attach duct work to heater.
29. Turn off propane supply and unplug heater
when not in use.
30. 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.
UNPACKING
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.
PRODUCT
IDENTIFICATION
Hot Air Outlet
(Front)
Piezo
Ignitor
Button
Automatic Control
Valve Button
Hose/Regulator
Assembly
Figure 1 - 30,000 Btu/Hr Model
Shell
Handle
Motor
Power
Cord
THEORY OF OPERATION
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.
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.
Clean Heated
Air Out (Front)
Combustion
Chamber
Figure 2 - Cross Section Operational View
Fan
Motor
Hose/Regulator
Assembly
Cool
Air In
(Back)
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ASSEMBLY
1. Remove screw from top of fan guard. Discard
screw.
2. Insert nut clip (provided with handle) with
flat side facing up through slot in top of shell.
Align holes in nut clip with screw hole behind
slot in top of shell. (see Figure 4).
3. Place handle over hole and clip. Insert two
screws (provided with handle) through handle
and tighten into shell. Make sure rear screw
goes through shell and into fan guard. Tighten
screws firmly.
Remove
Screw
Figure 3 - Removing Screw from Top of
Fan Guard
Nut Clip
Shell
Slot
Flat Side
Facing Up
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 library 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 lb (9 kg) propane tank. You may need two or
more tanks or one larger tank in colder weather.
Use a 100 lb (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 Temperature Number Of Tanks
At Tank 100 lb (45 kg)
Above 0° F (-18° C) 1
Below 0° F (-18° C) 2
Smaller tanks can be used for limited run times
but it is recommended to use larger tanks for
optimum performance.
VENTILATION
Figure 4 - Installing Nut Clip
Nut Clip
Figure 5 - Attaching Handle
Screws
Handle
Rear of
Heater
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WARNING: Provide at least
a 1 ft2 (0.09 m2) 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.
104787-01D4
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, page 4).
2.
Connect POL fitting on hose/regulator assembly to propane tank(s). Turn POL fitting
counterclockwise into threads on tank. Tighten
firmly using 7/8" wrench. IMPORTANT: Posi-
tion regulator so that hose leaving the regulator
is in a horizontal position (see Figure 6). This
places the regulator vent in the proper position
to protect it from the weather.
Propane
Supply Valve
Propane
Tank
Figure 6 - Regulator Position
Regulator
Hose
POL Fitting
3. Connect hose to valve inlet. Tighten firmly
using a wrench (see Figure 7).
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, excessflow 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 mix
ture of liquid soap and water to gas joints.
Bubbles forming show a leak that must be
corrected.
6. Close propane supply valve.
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 three-prong,
grounded extension cord. Extension cord must
be at least 6 ft (2 m) long. Extension cord must
be UL/CGA listed.
Extension Cord Size Requirement
Up to 50 ft (15 m) long, use 18 AWG rated
cord.
51 to 100 ft (16 to 30 m) long, use 16 AWG
rated cord.
101 to 200 ft (31 to 60 m) long, use 14 AWG
rated cord.
4. Plug extension cord into a 120 volt/60 hertz,
three-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, excessflow check valve on propane tank may stop
gas flow. If this happens, close propane supply
valve and open again slowly.
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Figure 7 - Hose and Inlet Connector
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OPERATION
Continued
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 8). Push piezo ignitor button
(see Figure 8). Keep pushing ignitor button
until the burner lights. When burner lights,
keep automatic control valve button pushed in.
Release button after 30 seconds. This activates
the automatic control system.
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 this step.
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).
2. Wait a few seconds. Heater will burn gas left
in supply hose.
3. Unplug heater.
Piezo
Ignitor
Button
Automatic
Control
Valve Button
Figure 8 - Automatic Control Valve
Button and Piezo Ignitor Button
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TO RESTART HEATER
1. Wait five 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 Storage and Han
dling of Liquefied Petroleum Gases, ANSI/
NFPA 58 and/or CAN/CGA B149.2. Follow
all local codes.
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
Procedures
, page 8).
MAINTENANCE
WARNING: Never service
heater while it is plugged in,
connected to propane supply,
operating or hot. Severe burns
and electrical shock can occur.
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 connec
tions 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 8).
6. Clean fan blades each season or as needed (see
Fan, page 9).
104787-01D6
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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
Fan does not turn when heater is
plugged in
Heater will not ignite
Heater shuts down while running
WARNING: Use
only in areas free of
high dust content.
POSSIBLE CAUSE
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 installa
tion or operation instructions
properly
2. No spark at ignitor. To test for
spark, follow step 8 under Ig-
nitor, 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
1. Propane supply may be inad
equate
2. High surrounding air tem
perature causing thermal limit
device to shut down heater.
3. Restricted air flow
4. Damaged fan
5. Excessive dust or debris in
surrounding area
TECHNICAL SERVICE
You may have further questions about this heater.
If so, contact DESA Heating Productsʼ Technical
Service Department at 1-866-672-6040. When
calling, please have your model and serial numbers
of your heater ready.
You can also visit DESA Heating Productsʼ Techni
cal Service web site at www.desatech.com.
104787-01D 7
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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 Industriesʼ Parts Department at
1-905-826-8010. You can also write to the address listed on the back page of this manual.
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LPA4020 - Fuel Gas Connector
Connects regulator to all standard propane tanks.
U.L. and AGA
REMEDY
1. Check voltage to electrical
outlet. If voltage is good, check
heater power cord for breaks
2. Adjust motor/fan mount to
keep fan from hitting inside of
heater shell. Bend fan mount
if necessary
3. Replace fan. See Fan, page 8
4. Replace motor
1.
Repeat installation and operation
instructions. See Installation,
page 4 and Operation, page 5
2. A) Check ignitor wire. Tighten
or reattach loose ignitor wire.
B) Assure gap between ignitor
electrode and target plate is
0.17" (4.3 mm). Do not bend
electrode. Doing so may cause
it to break
C) Tighten nut holding piezo
ignitor to base of heater
D) Replace ignitor electrode.
See Ignitor, page 9
1. A) Refill tank
B) Provide additional and/or
larger tanks. See Propa ne
Supply, page 4
2. This can happen when running
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heater in temperatures above
85° F (29˚ C). Run heater in
cooler temperatures
3. Check heater inlet and outlet.
Remove any obstructions
4. Replace fan. See
5. Clean heater. See Mainte
nance, page 6
Fan, page 8
ACCESSORY
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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.
Setscrew
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 9).
3. Use hex wrench to loosen set screw which
holds fan to motor shaft (see Figure 10). Re
move fan. Be careful not to damage the fan
blade pitch.
4. Remove two nuts and two screws that attach
fan guard to motor using nut-driver. Remove
fan guard from motor (see Figure 11).
5. Disconnect the green power cord wire from
motor and remove black and white wire ter
minals.
6. Discard old motor.
7. Attach green power cord wire to motor.
8. Attach fan guard to new motor with two nuts
and two screws.
9. Replace black and white terminals.
10. Place fan onto motor shaft of new motor.
Make sure set screw contacts flat surface on
motor shaft. Tighten set screw firmly (40-50
inch-pounds).
11. Place new motor and fan guard into rear of
heater shell. Make sure power cord is properly
located (see Figure 12).
12. Insert three screws through heater shell and
into fan guard. Tighten screws firmly.
Figure 9 - Removing Motor and Fan
Guard from Heater
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Figure 10 - Setscrew Location
Figure 11 - Removing or Attaching Fan
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Figure 12 - Replacing Motor and Fan
FAN
1. Remove three screws that attach fan guard to
heater shell.
2. Remove motor and fan guard from heater shell
(see Figure 9).
3. Use hex wrench to loosen set screw that holds
fan to motor shaft (see Figure 10).
4. Remove fan. Be careful not to damage the fan
blade pitch.
5a. If replacing fan, remove old fan and discard.
Go to step 7.
5b. If cleaning fan, use soft cloth moistened with
kerosene or solvent.
6. Dry fan thoroughly.
Place fan onto motor shaft. Make sure set screw
7.
contacts flat surface on motor shaft. Tighten
set screw firmly (40-50 inch-pounds).
8. Place motor and fan guard into rear of heater
shell. Make sure power cord is properly lo
cated (see Figure 12).
9. Insert three screws through heater shell and
into fan guard. Tighten screws firmly.
Guard from Motor
Guard into Heater
104787-01D8
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SERVICE PROCEDURES
Continued
IGNITOR
1. Remove motor and fan guard from heater (see
Motor, page 8, 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 notch in filler panel.
3. Remove ignitor mounting screw from rear
head using nut-driver or standard screwdriver
(see Figure 14).
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
notch in filler panel. Attach ignitor wire to
piezo ignitor.
7. Set gap between ignitor electrode and target
plate to 0.17" (4.3 mm) (see Figure 15).
WARNING: Make sure heater
is disconnected from propane
supply. Heater could ignite caus
ing severe burns.
Piezo
Ignitor
Ignitor Wire
Underside of Heater
Figure 13 - Removing Ignitor Wire from
Piezo Ignitor
Ignitor
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Mounting
Screw
8. Test for spark. Push piezo ignitor button and
watch for spark between ignitor electrode and
target plate.
9. Place motor and fan guard into rear of heater
shell (see Motor, page 8, steps 8 and 9).
Ignitor
Electrode
Gap
Area
Figure 15 - Clearance between Ignitor
Electrode and Target Plate
SPECIFICATIONS
• Rating: 30,000 BTU/Hr (31,644 kj/Hr)
• Fuel: Propane Vapor Only
• Fuel Consumption/Hour: 0.33 U.S. gallons
(1.24 liters), 1.39 lb (0.63 kg)
• Supply Pressure To Regulator: Minimum**-
20 psi (138 kPa), Maximum - Tank Pressure or
200 psi (1380 kPa)
• Regulator Outlet Pressure: 10 psi (69 kPa)
• Manifold Pressure: 10.1 psi (69 kPa)
• Hot Air Output (CFM Approx): 175 (4.95 m
• Motor: 3045 RPM, 1/40 HP
• Electric Input: 120 volt/60 hertz
• Amperage: 0.6
• Ignition: Manual, Piezo
•
Temperature Range for Operation: -20° to 85° F*
(-6.7° to 29.5° C*)
• Heater Weight: 11 lb (4.99 kg)
• Shipping Weight: 13 lb (5.90 kg)
• Size (L x W x H): Carton - 19.4" x 9.75" x 14.75"
(49.3 x 24.8 x 37.5 cm),
Heater - 18.5" x 8.0" x 12.8" (47 x 22.32 x 32.5 cm)
* When running heater in temperatures above
85° F (29.5° C), high internal temperatures may
cause thermal limit device to shut down heater.
** For purposes of input adjustment.
3
)
Figure 14 - Removing Ignitor Mounting
104787-01D 9
Screw and Ignitor
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