Series CR Installation Manual PDF - Myers Power Products, Inc.

Heater Option Operation:
The Heater option contains all the required components to maintain the batteries at a constant
temperature of 25 deg. C or 77 deg. F. It comes pre-wired and programmed and should require no
operator interface.
To turn the heater option on, simply turn on it’s dedicated circuit breaker located on the lower shelf
containing all the AC circuit distribution.
The Heater Option consists of a Temperature Controller, Solid State Switch, Temperature Sensor,
and Heating Elements.
The Temperature Controller is located in the upper left corner of the electronic shelf and its default
display is the current temperature and programmed temperature. The programmed temperature is
factory set to 25 deg. C or 77 deg. F.
The Solid State Switch is located directly below the Controller and its function is to connect and
disconnect power to the heating elements. The Solid State Switch is fed from a 120 VAC source. If
your input power is not 120 VAC, there is a factory provided Isolation Transformer to provide the 120
VAC to the Solid State Switch.
The Temperature Sensor is an RTD type and is located in the cable bundle on the left side of the
middle battery shelf.
There are 48 heating elements divided equally through three battery shelves. Each battery shelf has
16 heating elements producing 460 Watts. This 460 Watts is divided equally between 16 elements
and provides an even distribution of heat over the entire surface of the shelf. This even distribution
eliminates hot spots and uneven heat distribution between the batteries.
The Temperature Controller is factory programmed and should only be changed by authorized
factory personnel.
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114306E—Install/User Manual