F3D3 Series Service Manual Refrigeration / Section 4.7
Questions? Call Franke Technical Support Group For Your Area. Copyright 2012 Franke, Inc. All rights reserved.
4.7 Condensing Unit Replacement …Continued
13) NOTE: When resealing the system, use a continuous
Nitrogen charge to assure no contaminants enter the
system, especially when brazing.
14) Before recharging system, pull a vacuum equivalent to
760 mm [30 inches] of Mercury, for a minimum of 30
minutes.
15) Recharge the system with R404A refrigerant, per
nameplate label specifications.
16) Route condenser power cord though strain relief plastic
nut then down through the compartment bottom.
17) Pull down enough cord to reach the terminal block and
relay.
18) Use your small screwdriver and pliers to attach the
power cord wires to the terminal block ground and relay
(line & neutral).
19) Screw on the plastic strain relief, route and secure power
cord with wire ties, away from refrigeration lines, etc.
Test operation of Refrigeration System by:
20) Plug in unit power cord to outlet.
21) Turn ON unit at Main Power-ON Switch.
22) If compressor starts and brings the Freezer compartment
down to the normal operating temperature range of -18
to -23° C [0 to -10° F], repair is complete.
23) Return Dispenser to normal operating position and lock
front casters.
Rev. 1 6/2012
[Photo 4]
Recover any residual refrigerant
& ensure line pressure is zero
before opening system.
[Photo 5 – From back]
Cut compressor line between
sight glass & filter/dryer.
[Photo 6 – From above]
Cut return line as close as
possible to compressor.
[Photo 7]
When resealing the system, use
a continuous Nitrogen charge to
keep contaminants out.
Tools/Supplies Required
Medium Phillips screwdriver
8 mm [5/16”] socket/wrench
Needle-nose pliers
2-3 mm [1/8”] flat blade screwdriver
Refrigerant Recovery Tank & fittings
Nitrogen Charge Tank
R404A Refrigerant
Tubing Cutter
Brazing Torch, etc.
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