Product Manual

Description of control options for “Custom Specified” Cabinet Unit Heaters
Note: All units are field convertible to the following:
1. For control by a field supplied remote thermostat.
2.
Load management control with an external dry switch. When closed, unit operates under control of the internal or external
thermostat. When open, unit turns off.
B1--- Built-in single stage thermostat and relays which are operated by a field supplied 120 volt sourc.
Night set back can be accomplished by interrupting the 120 volt source to the unit. The unit is field convertible to the
following:
1. With a program controller provided by the installer; when the controller supplies the 120 volt source to the unit, it will heat
until the internal thermostat is satisfied. At night, the program controller will switch to a zone thermostat
which will control the 120 volt source to all of the heaters.
B2--- Built-in single stage thermostat and relays which are operated by a field supplied 24 volt source.
Night set back can be accomplished by interrupting the 24 volt source to the unit. The unit is field convertible to the
following:
1. With a program controller provided by the installer; when the controller supplies the 24 volt source to the unit, it will heat
until the internal thermostat is satisfied. At night, the program controller will switch to a zone thermostat
which will control the 24 volt source to all of the heaters.
B3--- Built-in single stage thermostat and relays which are operated by and internal 24 volt source.
B4--- Built-in single stage thermostat and relays which are operated by an internal 120 volt source.
(also includes fusing in the fan circuit and the transformer primary.)
B5--- Built-in two stage thermostat and relays which are operated by and internal 24 volt source.
B6--- Built-in two stage thermostat and relays which are operated by an internal 120 volt source.
(also includes fusing in the fan circuit and the transformer primary.)
B7--- Built-in two stage thermostat and relays which are operated by a field supplied 24 volt source.
Night set back can be accomplished by interrupting the 24 volt source to the unit. The unit is field convertible to the
following:
1. With a program controller provided by the installer; when the controller supplies the 24 volt source to the unit, it will heat
until the internal thermostat is satisfied. At night, the program controller will switch to a zone thermostat
which will control the 24 volt source to all of the heaters.
B8--- Built-in two stage thermostat and relays which are operated by a field supplied 120 volt source.
Night set back can be accomplished by interrupting the 120 volt source to the unit. The unit is field convertible to the
following:
1. With a program controller provided by the installer; when the controller supplies the 120 volt source to the unit, it will heat
until the internal thermostat is satisfied. At night, the program controller will switch to a zone thermostat
which will control the 120 volt source to all of the heaters.
Note: Standard Units are equipped with B3 Control Option
ISSUE DATE 06/15/01 REV. DATE REV. NO. 00 ECO NO. 1-4635 P/N 00009979 SHT.07 OF 09