Desa TC100VR Electric Heater User Manual


 
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106179
OWNER’S MANUAL
For more information, visit www.desatech.com
INSTALLATION
Continued
1. Provide natural gas supply system.
2. Install plumbing to a low pressure natu-
ral gas source. The source must be regu-
lated to 1/2 psi maximum 3/4 inch i.d.
hose or flexible connector not over 10
feet long.
3. Connect the hose to the regulator inlet.
Use thread sealing compound. Tighten
with a wrench
4. Open natural gas supply valve slowly.
5. Check all connections for leaks.
Figure 4 - Hose and Valve Inlet
Hose
Valve Inlet
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 cor-
rected. Correct all leaks at once.
NATURAL GAS MODEL
TC100VRNG
WARNING: Test all gas pip-
ing 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.
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.
TO START HEATER
1. Follow all installation, ventilation, and
safety information.
2. Locate heater on stable and level sur-
face. 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 supply valve on gas slowly.
Note:
If not opened slowly, excess-
flow check valve on propane tank may
stop gas flow. If this happens, you may
hear a click inside the regulator assem-
bly, 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
counterclockwise to the LOW position
(see Figure 5 or 6).
6. With the control knob pushed all the way
in, press and release the piezo ignitor but-
ton. Keep pressing piezo ignitor button un-
til the burner lights. Hold control knob
down for a maximum of 15 seconds while
attempting ignition. If heater does not ig-
nite, release control knob and wait 3 min-
utes before attempting reignition.
7. After ignition, hold control knob down
for about 30 seconds. This activates the
automatic control system.
8. When burner remains lit, set heater at
the desired heat level by slightly depress-
ing the control knob and turning it coun-
terclockwise to the MED or HIGH set-
tings (see Figure 5 or 6).
Note:
The emit-
ter glows red on the HIGH setting only.
9. If burner goes out, turn off gas. Slightly
depress and turn control knob fully
clockwise to OFF. Check fuel supply.
If adequate fuel is available, wait 5
minutes, and restart heater beginning
at step #1.
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.
TO STOP HEATER
1. Tightly close gas supply valve. Allow
heater to burn remaining fuel in hose.
2. Shut off burner. Do this by pushing in
the control knob and turning clockwise
to the OFF position.
TO RESTART HEATER
1. Wait five minutes after stopping heater.
2. Restart heater by following steps un-
der To Start Heater.
OPERATION
Figure 5 - Control Knob and Piezo Ignitor
Button Locations for Propane Model
TC100VR
Figure 6 - Control Knob, and Piezo Ignitor
Button Locations for Natural Gas Model
TC100VRNG
H
I
G
H
S
T
A
R
Off
Position
Start
/Low
Position
HIGH
MEDIUM
OFF
START/
LOW
MEDIUM
START/
LOW
HIGH
OFF
Piezo Ignitor
Button
Control
Knob
CAUTION: Running heater
below specified input rating may
cause flashback. During flash-
back, the burner flame is mostly
yellow. The flame will burn inside
the burner tube, causing a roar-
ing noise. If flashback occurs,
turn heater off. After burner tube
cools, restart the heater.
Off
Position
Start
/Low
Position
HIGH
MEDIUM
OFF
START/
LOW
MEDIUM
START/
LOW
HIGH
OFF
H
I
G
H
M
E
D
I
U
M
Piezo
Ignitor
Button
Control
Knob
Continue Turning
Knob Counter-
clockwise to MED
and HI
6. Close natural gas supply valve.