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10
6-170.9
ELECTRICAL SELECTION DETAILS - ALL MODELS
Table 10.1 - Electrical Selection Details - All Models
Model
Supply
Voltage
Phase
Motor
Voltage
Required Accessory
Transformer ➀
Power & Gas Control Circuit
Transformer Voltages
Factory Installed
Transformer
Motor Starter
Coil Voltage
PTC
115 1
115V/1ph
none
115V/1ph 115 to 24V none
208
1 or 3
208V to 115V
230 230V to 115V
460
3
460V to 115V
575 575V to 115V
BTC
115 1 115V/1ph none
115V/1ph 115 to 24V
none
208
1
208V/1ph 208V to 115V
115V
230 230V/1ph 230V to 115V
208
3
208V/3ph 208V to 115V
230 230V/3ph 230V to 115V
460
3
460V/3ph 460V to 115V
575 575V/3ph 575V to 115V
➀ For accessory transformer sizing, refer to Table 5.2 for model PTC and Table 6.4 for model BTC.
Table 10.2 - Gas Controls – All Models ➀
Model
Size Control System Description
Gas
Type
Control
Code
Control
Voltage
55-310
Single-Stage, Direct Spark Ignition
Utilizes a single-stage combination gas control and an ignition control.
Gas is automatically lit with the direct spark igniter on call for heat.
Natural 11
24V
Propane 21
➀ All ignition controls are 100% Shut-Off with Continuous Retry.