1.800.627.4499
16
Integral Indirect Gas-Fired Heat Module
OPTION
Electrical specifications are as shown in the charts below.
All modules are equipped with a Class II 24VAC power supply system that operates the module
internal controls.
IMPORTANT
Do not use the gas module transformer(s) to power external controls. Use the DOAS low
voltage 24VAC transformer or an external supplied 24VAC transformer.
If external controls are to be powered by the DOAS low voltage 24 VAC transformer or
external supplied 24 VAC transformer then follow the requirements for those transformers
regarding wire length, wire gauge, and power draw.
This gas appliance must be electrically grounded in accordance with local codes, or, in the
absence of local codes, with the National Electrical Code, ANSI/NFPA, and/or the Canadian
Electrical Code, CSA C22.1.
FOR MODELS WITH MBH 050, 075, 100, 125, 150
INPUT
VOLTAGE
MODULE FLA
5:1 Modulating
115 VAC
2.4
FOR MODELS WITH MBH 200, 250, 300, 350
INPUT
VOLTAGE
MODULE FLA
5:1 Modulating
10:1 Modulating
115 VAC
4.0
4.0
FIGURE 2.3.0 MODULE FLA
SYSTEM REQUIREMENTS
