Desa 80-CC, RCP80VC, REMCP80VC, SPC-80CC, TC80VC Owner's Manual
VARIABLE 40-80,000 BTU/HR
75-200,000 BTU/HR
PROPANE CONSTRUCTION CONVECTION HEATER
OWNER’S MANUAL
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.
Save this manual for future reference.
For more information, visit www.desatech.com
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TABLE OF CONTENTS
Safety Information ............................................... 2
Unpacking ........................................................... 3
Theory of Operation ............................................ 3
Product Identification ........................................... 3
Ventilation
........................................................... 3
Propane Supply ................................................... 4
Installation ........................................................... 4
Operation ............................................................. 5
Storage ................................................................ 7
Maintenance ........................................................ 7
Troubleshooting ................................................... 8
Specifications ...................................................... 9
Replacement Parts .............................................. 9
Technical Services ...............................................
9
Accessories ......................................................... 9
Illustrated Parts Breakdown and Parts List ....... 10
Warranty and Repair Service ............................ 14
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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 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•CGA
2.14. 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 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 Liquefied
Petroleum Gas, ANSI/NFPA 58 Natural Gas
Installation Code, CAN/CGA B149.2. This
instructs on the safe storage and handling of
propane gases.
2. This product has been approved for use in the
Commonwealth of Massachusetts.
3. Use only propane gas set up for vapor with
-
drawal.
4.
Provide adequate ventilation. Before using
heater, provide at least a 2.5 square foot
(0.232 m
2
) (80,000 btu heaters) or 6.0 square
foot (0.557 m2) (200,000 btu heaters) opening
of fresh, outside air.
5. For indoor use only. Do not use heater out
-
doors.
6. Keep heater away from strong drafts, wind,
water spray, rain or dripping water.
7. Do not use heater in occupied dwellings or in
living or sleeping quarters.
8. Do not use heater in a basement or below
ground level. Propane gas is heavier than air.
If a leak occurs, propane gas may sink to the
lowest possible level.
9. 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.
10. Minimum heater clearances from combustibles:
80,000 Btu heaters
Sides: 3 feet (91 cm); Top: 6 feet (1.83 m)
100-200,000 Btu heaters
Sides: 3 feet (91 cm); Top: 7 feet (2.1 m)
11. Keep heater at least six feet (1.83 m) from
propane tank(s).
12. Keep propane tank(s) below 100° F (37.8° C).
13. Use only the hose and factory preset regulator
provided with the heater.
14. Check heater for damage before each use. Do
not use a damaged heater.
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SAFETY INFORMATION
Continued
Outer
Shell
Ignitor
Button
Ball Valve
Control Knob
Button
Figure 1 - 200,000 Btu Model Shown
15. Check hose before each use of heater. If highly
worn or cut, replace with hose specified by
manufacturer before using heater.
16. Do not alter heater. Keep heater in its original
state.
17. Do not use heater if altered.
18. Locate heater on stable and level surface if
heater is hot or operating.
19. Not intended for use on finished floors.
20. Never block air inlet (bottom of shell) or air
outlet (around top of shell) of heater.
21. Do not leave heater unattended.
22. Keep children and animals away from
heater.
23. Never move, handle or service a hot or operat
ing heater. Severe burns may result. You must
wait 15 minutes after turning heater off.
24. To prevent injury, wear gloves when handling
heater.
25. Never attach duct work to heater.
26. Turn off propane supply to heater when not
in use.
27. 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.
THEORY OF OPERATION
The Fuel System: The hose/regulator assembly
attaches to the propane gas supply. This provides
fuel to the heater.
The Ignition System: The piezo ignitor lights
the pilot.
The Automatic Control System: This system causes
the heater to shut down if the flame goes out.
PRODUCT
IDENTIFICATION
VENTILATION
WARNING: Provide at least
a 2.5 square foot (0.23 m
2
)
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.
Valve
Inlet
Safety Pilot Valve
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1. Care must be taken to protect hands during this
step. Lift outer shell straight up as shown in Fig
ure 2, until all three clips engage slots in lower
shell. Screw holes will line up at this point.
2. Lock clips into place with 3 screws as shown
in Figure 2. The heater must not be operated
unless the outer shell is properly extended and
fully locked into place.
Figure 2 - Lifting Outer Shell
(200,000 Btu Model Shown)
3 Screws
per Clip
Outer
Shell
Clip in Slot
of Lower
Shell
PROPANE SUPPLY
You must provide propane gas and propane tank(s).
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.
This heater will operate with a 20 pound (9.07 kg)
propane tank. However, you can only operate it in
the LOW position during mildly cool weather for
a very short time. At higher heat settings or during
colder weather, you must use larger tanks.
The amount of propane gas ready for use from pro
-
pane tanks varies. Two factors decide this amount.
1. The amount of propane gas in tank(s)
2. The temperature of tank(s)
The chart below shows the minimum number of
100 pound (45 kg) tanks needed to run the heater.
Connect tanks together with a manifold.
Average Temperature Number
At Tank Location Of Tanks
(80,000 Btu models)
20° F (-6.7° C) to 60° F (15.6° C) 1
0° F (-17.8° C) to 20° F (-6.7° C) 2
(200,000 Btu models)
20° F (-6.7° C) to 60° F (15.6° C) 2
0° F (-17.8° C) to 20° F (-6.7° C) 3
Less gas is vaporized at lower temperatures. Your
local propane gas dealer will help you select the
proper supply system.
INSTALLATION
WARNING: Review and understand 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.
CAUTION: Never ignite and/
or run this heater unless the
shells are fully extended and
locked into position.
OUTER SHELL
IMPORTANT: When the heater is first removed
from carton, the outer shell is in the down position. Protect hands before lifting outer shell. Never
grasp bare metal without hand protection.
CONNECTING TO GAS SUPPLY
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 fuel gas fitting on hose/regulator
assembly to propane tank(s). Turn fuel
gas fitting counterclockwise into threads
on tank. Tighten firmly using a wrench.
IMPORTANT: Tighten regulator with vent
pointing down. Pointing vent down protects
regulator from weather damage.
3. Connect hose to the valve inlet. Tighten firmly
using a wrench. You must use the regulator sup
-
plied with heater even if propane tank has one.
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Off/
Apagado/
Arrêt
Lo/Baja/
Basse
Med/
Media/
Moyenne
Hi/Alta/
Haute
Figure 3 - Regulator Position
Propane
Tank
Propane Supply
Valve
Regulator
Hose
POL
Fitting
INSTALLATION
Continued
Figure 4 - Hose and Valve Inlet
(200,000 Btu Model Shown)
Hose
Valve Inlet
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.
80,000 BTU 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 on heater.
3. Make sure unit is turned off by slightly
depressing and turning control knob fully
clockwise to OFF.
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, you may hear a click
inside the regulator assembly, this is the check
valve closing. To reset the excess flow check
valve, close propane supply valve and open
again slowly.
5. Slightly depress and turn control knob counter
-
clockwise to the LO position (see Figure 5).
6. With the control knob pushed all the way in,
press and release the piezo ignitor button.
Keep pressing piezo ignitor button until the
burner lights. Hold control knob down for a
maximum of 15 seconds while attempting ig
nition. If heater does not ignite, release control
knob and wait 3 minutes before attempting
reignition.
7. After ignition, hold control knob down for
about 30 seconds. This activates the automatic
control system.
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, you may hear a click
inside the regulator assembly, this is the check
valve closing. To reset the excess flow check
valve, 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.
Figure 5 - Control Knob and Piezo Ignitor
Piezo Ignitor Button
Control Knob
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