OPERATING HEATER
Continued
LIGHTING
INSTRUCTIONS
1.STOP! Read the safety information, page 15, column 2.
2.Make sure equipment shutoff valve is fully open.
3.Turn thermostat control knob clockwise 
to the OFF position (see Figure 22 or 23 for your model).
4.Wait five minutes to clear out any gas. Then smell for gas, including near the floor. If you smell gas, STOP! Follow “B” in the safety information, page 15, column 2. If you donʼt smell gas, go to the next step.
5.Turn thermostat control knob counter-
clockwise 
to the PILOT position. Press in thermostat control knob for 5 sec- onds (see Figure 22 or 23 for your model). Note: You may be running this heater for the first time after hooking up to gas supply. If so, you may need to press in thermostat control knob for 30 seconds or more. This will allow air to bleed from the gas system.
•If thermostat control knob does not pop up when released, contact a qualified ser- vice person or gas supplier for repairs.
6.Keep thermostat control knob pressed in while pushing down and releasing the ignitor button. This will light pilot. If necessary, continue to press ignitor button until pilot lights.
If pilot does not light
•turn thermostat control knob clockwise 
to the OFF position
•repeat steps 5 and 6
If pilot does not stay lit after several tries
•refer to Troubleshooting, page 20
•contact a qualified service person or gas supplier
Until repairs are made, light pilot with match. To light pilot with match, see Manual Lighting Procedure, page 17.
7.Keep thermostat control knob pressed in for 30 seconds after lighting pilot. After 30 seconds, release control knob.
Note: If pilot goes out, repeat steps 3 through 7. This heater has a safety interlock system. Wait one minute before lighting pilot again.
8.Turn thermostat control knob counter-
clockwise 
to the desired heating level. For models, VP16TA, VN18TA, VP26TA and VN30TA, the main burner should light. Set control knob to any heat level between 1 and 5 (see Figure 25). For infrastat models, the plaque directly above the pilot should light.
CAUTION: Do not try to ad- just heating levels by using the equipment shutoff valve.
Ignitor Button | Control Knob |
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| F |
| F |
| O |
Figure 22 - Control Knob In The OFF
Position, Models VP16TA, VN18TA,
VP26TA, & VN30TA
Plaque Control | Ignitor | Thermostat | |
Button | Control Knob | ||
Knob | |||
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1 |
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2 |
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3 |
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4 |
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Figure 23 - Thermostat Control Knob In The | |||
OFF Position, Models VP16ITA & VP22ITA | |||
| Thermocouple | ||
| Ignitor Electrode | ||
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| Pilot Burner | |
Figure 24 - Pilot
Control | VP16TA |
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| VP26TA | ||||
Knob | VN18TA |
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| VN30TA | ||||
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Figure 25 - Burner Patterns
16 | www.desatech.com |