Operating instructions

#8401 QC-100 INSTALLATION & MAINTENANCE MANUAL PG.5
1.6.6 ELECTRICAL: The Quickchiller must be
installed by a qualified electrician. This
appliance must be branch circuit protected
with proper ampacities in accordance with
the wiring diagram located in this manual.
In the U.S.A., the chiller must be properly
grounded in accordance with the National
Electrical Code and applicable local codes.
1.6.7 All electrical connections have been made
and tested by the factory. It is necessary to
hard wire the cabinet by installing the proper
power cord and making connections (3 wire,
L
1
, L
2
, and GND [EARTH
]) in the 4x4 electrical
box located on the top rear center of the unit.
See Fig. 1.6.6.
1.6.8 Before making the electrical connection read
Section 1.6.9 through 1.6.11 and refer to
wiring diagram for appropriate unit located
in the back of this manual.
1.6.9 The Quickchiller utilizes a 24 Volt control
system with step-down transformer. The
primary side of the transformer is factory
wired for a 240 Volt power supply. Check the
supply voltage on the branch circuit servicing
the Quickchiller. If the supply voltage is 218
Volts or greater, skip Section 1.6.10, and
proceed per Section 1.6.11.
If supply voltage is less than 218 Volts,
proceed per Section 1.6.10.
FAILURE TO CORRECTLY CONNECT THE
CONTROL TRANSFORMER WILL RESULT
IN ERRATIC CONTROL OPERATION
AND CONTROL DAMAGE.
1.6.10 For supply voltage less than 218 Volts,
proceed as follows. Open the control box
door. Locate the control transformer.
Disconnect the orange (240V) transformer
wire from the terminal block. Remove the
wire nut from the red (208V) transformer
wire and install wire nut to the end of the
orange wire. Connect the red wire (208V) to
the terminal block.
1.6.11 Make certain the branch circuit breaker (main
electrical panel) and Quickchiller circuit
breaker are in their OFF position. Also make
certain the available power matches the
Quickchiller power requirements.
1.6.12 Complete electrical connections to the
Quickchiller.
1.0 — General Information and Installation
FIG. 1.6.6.a
ELECTRICAL: Model QC-100 SELF-CONTAINED
4x4
ELECTRICAL BOX
FIG. 1.6.6.b
ELECTRICAL: Model QC-100 WATER COOLED
4X4
ELECTRICAL
BOX
ENSURE THE AVAILABLE POWER
SOURCE MATCHES THE VOLTAGE
STAMPED ON UNIT NAMEPLATE