036-33072-001 Rev. A (0601)
Unitary Products Group
13
Unit requires installer to provide a 24volt thermostat with
appropriate heating and cooling stages as needed. For low
voltage wiring, 18 gauge wire may be used for up to 50 feet
lengths. Low voltage runs up to 125 feet require 16 gauge
wire.
All models are designed for single zone cooling applications,
utilizing space or return air thermostatic controls. A low volt-
age terminal block is provided for hook-up of conventional or
programmable thermostats.
The CU6300 -25 ton models feature three independent com-
pressor stages. A multi-stage commercial thermostat (ie.
Honeywell T7300 series), or other type of multi-step control-
ler, is recommended for use with these models. Alternatively,
two of the three compressor stages may be wired together to
achieve two step capacity control. Please note that this
arrangement will result in output staging of 33.3% / 66.6%.
