Unitary Products Group
ACCESSORY KIT INSTALLATION INSTRUCTIONS
FUSE BLOCK ACCESSORY
MODELS 2FB04700825 & 2FB04700846 (SERIES “2CE” ELECTRIC HEATERS)
FOR SINGLE PACKAGE AIR CONDITIONERS 3 THRU 6 TON
SINGLE PACKAGE HEAT PUMPS 3 THRU 5 TON
035-19457-000-B-0403
GENERAL
The following instruction provides all the necessary informa-
tion for field assembling a fuse block accessory on the air
conditioners and heat pumps listed above.
When required by local code (Chicago), these fuse block
accessories are used in conjunction with the specific electric
heat accessory listed in Table 1 plus the equivalent heating
option if factory installed.
The following heaters include a fuse box as standard equip-
ment:
•
all 208/230-1-60 heaters
•
all 208/230-3-60 heaters above 8KW
Heaters with 575 voltages do not have fuse boxes. (Not
required by CSA nor any Canadian local codes.)
INSTALLATION
INSTALLATION FOR DCE/DHE/DEE/DHC/DHB 036
THRU 076 PACKAGED COOLING UNITS AND
BCH/BCB 036 THRU 060 PACKAGED HEAT
PUMPS.
Install the fuse block accessories as follows:
NOTE:
Most of the following installation procedures are
duplicates of the electric heater accessory instal-
lation
procedures. Refer to “For Heaters With A
Fuse Box”
section in the installation instruction.
1.
Disconnect all electrical power to the unit.
2.
Remove the following panels from the basic unit.
•
Heating access panel
•
Heater control box cover
•
Blower access panel
•
Unit control box access panel
TABLE 1: ACCESSORY APPLICATION
Fuse Block
Accessory
Model
ELECTRIC HEATER
MODEL
VOLTAGE
2FB04700825
2CE04510525
2CE04510725
208/230-3-60
2FB04700846
2CE04510746
2CE04511046
2CE04511546
2CE04512046
2CE04513046
460-3-60
FIGURE 1 - TYPICAL FUSE BLOCK INSTALLATION FOR DCE/DHE/DEE/DHC/DHB 036 THRU 076 PACK-
AGED COOLING UNITS AND BCH/BCB 036 THRU 060 PACKAGED HEAT PUMPS
FIELD
POWER
WIRING
1M
CONTACTOR
2TB
TERMINAL
BLOCK
UNIT
CONTROL
BOX
FUSE BOX
FUSE BLOCK
AND
FUSES
ELECTRIC HEATER
WIRING
BLOWER
SECTION
ELECTRIC HEAT
SECTION
HEATER
CONTROL
BOX
