10
Specifications subject to change without notice. IM-KSAIC03-03
TXV REPLACEMENT PROCESS FOR
PIPING ADAPTER FOR FV4CNF002L00 AND
FV4CN(B,F)003L
1. Gain access to the built-in TXV inside the fan coil cabinet.
2. Double-wrench the TXV mechanical connector and disassemble.
3. Cut the bleed line from the TXV to the suction line and braze closed
the capillary tube.
4. Remove the tail bulb from the suction line by cutting the stainless
steel band.
5. Assemble the line set to the piping adapter kit (40MD000003).
Obtain through RCD.
a. Refer to “APPENDIX 2 - PIPING ADAPTER BUSHINGS/
REDUCERS” on page 16 for Bushing/Reducer sizing.
b. Adapt (where needed) and braze the liquid line to the piping
adapter.
6. Place the Teflon gasket on the brass tip of the Piping Adapter and
insert into the aluminum distributor head.
Thread the piping adapter brass nut onto the distributor line and tighten - finger tight + 1/2 turn.
Fig. 14 — Piping Adapter Replacement
BASIC SETUP FOR THE FV4C “EASY SELECT” PRINTED-CIRCUIT BOARD
BASIC FAN COIL CONFIGURATION
The following basic fan coil configuration provides AHRI rated
performance of the heat pump:
A. AUX HEAT KW/CFM
−
Select the heater range for the size electric heater installed.
B. AC/HP SIZE
−
Select system size installed
For size 12K, select 018 on the board.
For sizes 18K - 36 K, select the nominal connector on the
board.
C. SYSTEM TYPE -
Select system type
D. AC/HP CFM ADJUST
−
Select NOM
E. ON/OFF DELAY
−
Select 0/90 profile
F. CONTINUOUS FAN
−
Select the desired fan speed when the thermostat is set to
continuous fan.
For size 12K, select “MED”
Fig. 15 — Detail of FV4C Printed-Circuit Board
