14 Specifications subject to change without notice. IM-KSAIC03-02
APPENDIX 1 - COMPATIBILITY CHART
The 24V INTERFACE KIT is compatible with most thermostats matched with the Fan Coils listed in Tables 17, 18, and 19. Before installation,
check the compatibility of your Outdoor and Indoor Fan Coil. Professional installation is recommended.
Select Proper Blower Speed For the Fan Coil
Before operating unit, ensure that the proper blower speed has been selected. Fan speeds are selected manually. Refer to the installation manual
of the indoor unit for instructions on how to change the fan speed and select the taps (see Tables 17, 18, and 19) for the proper matches.
24V Interface Fan Speed Wiring (See Page 9 for Wiring Connections)
G3 is the High Fan Speed terminal and should be connected to the High tap speed inputs at the fan coil.
G2 is the Medium Fan Speed terminal and should be connected to the Medium tap speed inputs at the fan coil.
Tap G1 is Low Fan Speed terminal and should be connected to the Low tap speed inputs at the fan coil. The 24V interface may be connected to
a low Tap Speed, based on the installation instructions of the indoor unit.
Table 17 — Compatibility with FMA4 Fan Coils
Table 18 — Compatibility with FMC4 Cased Horizontal Fan Coils
Table 19 — Compatibility with FMU4 Uncased Horizontal Fan Coils
Table 20 — Compatibility with FV4 Fan Coils
Indoor
Volt-
Ph@60Hz
Kit Number
Nominal 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 FMA4X1800AL 38MAQB18R--3 Tap 2
24 FMA4X2400AL 38MAQB24R--3 Tap 5
30 FMA4X3000AL 38MAQB30R--3 Tap 2
36 FMA4X3000AL 38MAQB36R--3 Tap 4
Indoor
Volt-
Ph@60Hz
Kit Number
Nominal System Size
MBTUH
Indoor Model
Number
Outdoor Model
Number
Recommended Maximum
Indoor Fan
Speed Tap Number
FMC4
Cased
Horizontal
Fan Coil
208/230-1 KSAIC0301230
12 FMC4Z1800AL1 38MAQB12R--3 Low (Black)
18 FMC4Z1800AL1 38MAQB18R--3 Medium low (Blue)
24 FMC4Z2400AL1 38MAQB24R--3 Medium low (Blue)
30 FMC4Z3000AL1 38MAQB30R--3 Medium high (White)
36 FMC4Z3600AL1 38MAQB36R--3 Medium high (White)
Indoor
Volt-
Ph@60Hz
Kit Number
Nominal System Size
MBTUH
Indoor Model
Number
Outdoor Model
Number
Recommended Maximum
Indoor Fan
Speed Tap Number
FMU4
Uncased
Horizontal
Fan Coil
208/230-1 KSAIC0301230
12 FMU4Z1800AL1 38MAQB12R--3 Low (Black)
18 FMU4Z1800AL1 38MAQB18R--3 Medium low (Blue)
24 FMU4Z2400AL1 38MAQB24R--3 Medium low (Blue)
30 FMU4Z3000AL1 38MAQB30R--3 Medium high (White)
36 FMU4Z3600AL1 38MAQB36R--3 Medium high (White)
Indoor
Volt-
Ph@60Hz
Kit Number
Nominal System
Size MBTUH
Indoor Model
Number
Outdoor Model
Number
Recommended Fan Speed
Wiring and Configuration
FV4
Fan Coil
208/230-1 KSAIC0301230
12 FV4CNF002L00 38MAQB12R--3 Connect G1 on the 24V
interface to G on the fan coil.
Under the configuration taps
for AC/HP CFM ADJUST, the
recommendation is to
select NOM. Refer to Page
10 and Appendix 5 for setup.
18 FV4CNF002L00 38MAQB18R--3
24 FV4CNF002L00 38MAQB24R--3
30 FV4CN(B,F)003L 38MAQB30R--3
36 FV4CN(B,F)003L 38MAQB36R--3