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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

Содержание KSAIC0301230

Страница 1: ...y Understand these signal words DANGER WARNING and CAUTION These words are used with the safety alert symbol DANGER identifies the most serious hazards which may result in severe personal injury or de...

Страница 2: ...refrigerant compressors Pressurized mixtures of air or gases containing oxygen can lead to an explosion WARNING INSTALLATION Entrust a licensed contractor to install the unit Installation by unskilled...

Страница 3: ...ble 3 24V Interface Clearance Dimensions NOTE 24 in 610mm minimum for service access or use local code Fig 3 Clearances Clearances Unit Minimum Value In mm Sides 5 9 150 Front 24 610 Top and Bottom 3...

Страница 4: ...er the screw SYSTEM CONFIGURATION NOTES The thermostat should be configured for use with a as a single stage Cooling and Heating DO NOT configure the thermostat as a Heat Pump The wireless remote cont...

Страница 5: ...ndoor to the outdoor unit until the static pressure settings are complete refer to the Ducted unit installation manual On selected indoor units the Up Down Swing Louver functions as a control to turn...

Страница 6: ...general installation instructions For Ducted units in order to initially setup the static pressure the 24V interface must be bridged Temporarily connect the communication wires S1 and S2 from the indo...

Страница 7: ...it until the static pressure settings are complete see the Ducted unit installation manual When static pressure is adjusted reconnect L1 L2 S and G wires to the terminal blocks In the AUTO mode the sy...

Страница 8: ...a single stage cooling and heating DO NOT configure the thermostat as Heat Pump NOTES Follow the indoor and outdoor unit s general installation instructions The T1 Return air temperature sensor should...

Страница 9: ...oor unit s general installation in the next column 9 Configure the dip switches on the 24V Interface for proper operation For Heat Pump all switches OFF except SW1 1 ON For Cooling Only all switches O...

Страница 10: ...he 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 Fi...

Страница 11: ...Using a Conventional Fan Coil The following steps should be taken when using this device with a conventional fan coil unit scenarios 4 and 5 1 Indoor coil metering device TXV Piston must be removed 2...

Страница 12: ...il only available on scenarios 1 through 3 Table 11 DIP Switch 2 2 NOTE Applicable only to the Ductless Style Indoor Heat Pump units in the HEATING mode DIP Switch 3 1 On Ductless systems Dry is used...

Страница 13: ...emperature sensor T5 malfunction Outdoor Service Manual F4 Outdoor unit EEPROM parameter error Outdoor Service Manual F5 Outdoor fan speed has been out of control Outdoor Service Manual F6 T2b sensor...

Страница 14: ...opens and closes based on the system s alarm status This is normally a an open dry contact Work Output CN6 This contact is a dry contact that opens and closes based on the system s running or not run...

Страница 15: ...minal System Size MBTUH Indoor Model Number Outdoor Model Number Recommended Maximum Indoor Fan Speed Tap Number FMA4 Vertical Fan Coil 208 230 1 KSAIC0301230 12 FMA4X1800AL 38MAQB12R 3 Tap 1 18 FMA4X...

Страница 16: ...door coil s size No refrigerant addition is necessary for the FV4 any size All the outdoor units are shipped from the factory pre charged for 25ft of piping length See the outdoor unit s installation...

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