Start-Up Direct Gas continued
important
Setting the maximum firing rate during mild weather conditions may cause the high limit to trip out during extreme conditions requiring manual resetting.
note
The minimum setting for the maximum firing rate may be higher than required. This is acceptable, the burner will still modulate as needed.
note
Gas trains are equipped with either a separate regulator and modulating valve or with a combined modulating regulator.
note
Clockwise rotation increases the temperature rise, counterclockwise rotation decreases the temperature rise.
Regulators and Modulating Valves
Remove cap to access |
| Remove one wire to |
maximum firing rate |
| send the unit to the |
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adjustment |
| minimum firing rate |
Minimum firing rate adjustment
Separate Regulator and Modulating Valves
Minimum firing |
| Maximum firing |
| ||
rate adjustment |
| rate adjustment |
7. Set the Minimum Firing Rate
Disconnect and isolate one of the wires running to the modulating valve to send the unit to its minimum firing rate. Set the minimum firing rate by adjusting the needle valve as shown in the diagrams on this page.
After setting the minimum firing rate, shut off the pilot to ensure that the flame safeguard can still read the main flame signal. Reconnect the wire to the modulating valve and open the pilot
important
The proper setting for the minimum firing rate results in a small ribbon of continuous flame across the entire burner.
important
Do not allow the disconnected wire to come in contact with a potential ground. Damage to the amplifier or transformer could result.
note
On units with a 42 inch or greater burner, the flame safe guard will automatically shut off the pilot
10 seconds after the burner has been ignited.
note
Gas trains are equipped with either separate regulators and modulating valves or with a combined modulating regulator.
note
Adjusting the maximum and minimum fire requires the inlet air sensor to be set higher than the outdoor air temperature in order to start the burner. Once high and low fire have been set, the inlet air sensor should be set to the desired temperature.
8. Set Daytime Temperature
Set the daytime temperature setting to the desired daytime space temperature, the daytime temperature setting is located inside the TSCP Space Heat remote panel which should be mounted in the space.
Transformer
Side | Top | |
View | ||
View | ||
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Remove one wire to send the unit to the minimum firing rate
Combined Modulating Regulator
| Terminal | |||
(optional) |
| Strip | ||
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| Night |
| Day | |
Temperature |
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| Temperature | |||
Setting |
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| Setting | |||
(optional) |
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TSCP Space Heat Remote Panel Controls
®
DGX Industrial Space Heating 13