Alto-Shaam Quickchiller QC-20 Installation And Maintenance Manual

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.
ENSURE THE AVAILABLE POWER
SOURCE MATCHES THE VOLTAGE
STAMPED ON UNIT NAMEPLATE
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 electrical box
located at the back of the unit. See Fig. 1.6.6.
1.6.8 Before making the electrical connection read
Section 1.6.9 thru 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. Remove the electrical enclosure
cover. 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.
Restore electrical enclosure cover.
1.6.11 Make certain the branch circuit breaker (main
panel) and Quickchiller circuit breaker (see
figure 1.6.6) 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.
A
#8400 Installation & Maintenance Manual - Pg. 5
1.0 — General Information and Installation
(1295mm)
7"
2
mm)
26-3/4"(679mm)
OPENING
(965mm)
30-1/2"
(775mm)
2" x 4"
(51 x 102mm)
Junction Box
(Elec.)
2-1/2"
(64mm)
2-1/2" (64mm)
CIRCUIT BREAKER
AT TOP OF UNIT
38"
51"
FIG. 1.6.6 ELECTRICAL: Model QC-50
Following electrical installation,
additional steps are necessary to prepare the control for operation.

Alto-Shaam Quickchiller QC-20 Specifications

General

Brand	Alto-Shaam
Model	Quickchiller QC-20
Category	Chiller
Language	English