Service Alert
Communications
To: All Quincy Distributors
From: Quincy Illinois Service Dept.
Subject: Service Alert #390
Date: 04/05/13
Incorrectly Wired Fuse Blocks On Single
Power Source Duplex Control Panels
IMMEDIATE ACTION REQUIRED
IMPORTANT PRODUCT SAFETY NOTICE
Incorrectly wired fuse blocks on single
power source duplex control panels:
Potential Fire Hazard - Immediate Action Required
Affected Product: All Duplex Control Panels with a single power source – shipped from
the Quincy Illinois Plant between Dec 1, 2012 and Mar 1, 2013.
ISSUE:
Transformer primary fuse block is incorrectly wired, resulting in a bypass of these fuses.
Correction/Work to be Performed:
Tools required.
•
•
•
Lockout/Tagout – Padlock and tag.
Electrical voltage tester.
Screwdriver.
1.
Lockout and tag out the electrical energy to the panel (REQUIRED!). Work will be performed
on the control panel power circuit.
Locate the transformer fuse block (Ref photos). Confirm that wiring is incorrect. If wiring is
correct no action needed. If incorrect proceed to step 3.
Loosen screws securing the black lead wires to the transformer fuse block. Remove wires
from fuse block and relocate to the opposite end of the fuse block.
Tighten all screws on both ends of the fuse block (see photos).
2.
3.
4.
When filing the warranty claim, Quincy Compressor allow (1/2) hour labor plus travel and
mileage for performing the wiring correction. Multiple units at the same location must be
completed on the same trip.
See photos on the following pages for specific examples.
quincycompressor.com
Photo #1 Incorrectly
Wired
Control Panel – Transformer Power Leads – Not Routed Through the Primary Fuse.
The power leads going to the transformer in the photos below are on the same side of the fuse as
the leads going to the transformer input terminals. This configuration leaves the primary fuses out
of the transformer power circuit – the transformer is not fuse protected.
Black transformer input leads
Yellow primary power leads.
quincycompressor.com
Photo #1
Correctly Wired
Black transformer input leads
quincycompressor.com
Yellow primary power leads.