Trane FC User manual

UNT-SVX07A-EN
Installation, Operation,
and Maintenance
UniTrane Fan-Coil & Force Flo
Air Conditioners
200 to 1,200 cfm
Models FC & FF
“ZO” and later design sequence
Low vertical models FCKB & FCLB:
“SO” and later design sequence
April 2005

© 2005 American Standard Inc. UNT-SVX07A-EN
About This Manual
Literature Change History
Use this manual for UniTrane fan-coils
and Force Flo cabinet heaters. This is the
seventh revision of this manual. It
provides specific installation, operation,
and maintenance instructions for “ZO”
and later design sequences for all
models except low vertical, which are
“SO” and later design sequences. For
previous design sequence information,
contact your local Trane representative.
Warnings and Cautions
Warnings and cautions appear at
appropriate sections throughout this
manual. Read these carefully.
WARNING
Indicatesapotentiallyhazardous
situation,whichcouldresultindeath
orseriousinjuryifnotavoided.
CAUTION
Indicatesapotentiallyhazardous
situation,whichmayresultinminor
or moderate injury if not avoided.
Also, it may alert against unsafe
practices.
CAUTION
Indicates a situation that may result
inequipmentorproperty-damage-
onlyaccidents.
general
information
WARNING
Hazardous Voltage w/Capacitors!
Disconnect all electric power,
includingremotedisconnectsand
discharge all motor start/run
capacitors before servicing. Follow
properlockout/tagoutproceduresto
ensure the power cannot be
inadvertently energized. For variable
frequency drives or other energy
storingcomponentsprovidedby
Trane or others, refer to the
appropriate manufacturer’s literature
forallowablewaitingperiodsfor
discharge of capacitors. Verify with an
appropriate voltmeter that all
capacitors have discharged. Failure to
disconnectpoweranddischarge
capacitors before servicing could
resultin death or serious injury.
CAUTION
Use Copper Conductors Only!
Unitterminals are not designed to
accept other type conductors. Failure
to use copper conductors may result
inequipmentdamage.
Common HVAC Acronyms
For convenience, a number of acronyms
and abbreviations are used throughout
this manual. These acronyms are
alphabetically listed and defined below.
BAS = Building automation systems
cfm = Cubic-feet-per-minute
ewt = entering water temperature
F/A = Fresh air
HVAC = Heating, ventilation and air
conditioning
I/O = Inputs/outputs
IOM= Installation, operation, and
maintenace manual
LH = Left-hand
O/A = Outside air
R/A = Return air
RH = Right-hand
rpm = Revolutions-per-minute
S/A = Supply air
w.c. = Water column
ZSM = Zone sensor module

UNT-SVX07A-EN 3
contents
Cross reference to related publications/information for UniTrane™ fan-coil & Force
Flo™ equipment:
• Rover ™ Installation, Operation and Programming Guide, EMTX-SVX01D-EN
• Tracer
™ ZN510 Unit Controller, CNT-IOP-1
• Tracer
™ ZN520 Unit Controller, CNT-SVX04A-EN
• UniTrane ™ Fan-Coil Catalog, UNT-PRC001-EN
• Force Flo
™ Cabinet Heater Catalog, CAB-PRC001-EN
Installation ……………………………………………………………2
general information ……………………………………………2
dimensions & weights ……………………………………… 10
pre-installation considerations ………………………………28
mechanical requirements ……………………………………30
electrical requirements ………………………………………36
installation procedure ………………………………………41
pre-startup requirements ……………………………………46
Operation ……………………………………………………………49
general information …………………………………………49
sequence of operation ………………………………………50
Maintenance…………………………………………………………60
diagnostics ……………………………………………………60
troubleshooting ………………………………………………64
maintenance procedures ……………………………………67
typical wiring diagrams ………………………………………71

4UNT-SVX07A-EN
Figure I-GI-1. UniTrane fan-coil unit components. Vertical cabinet model is shown.
General
UniTrane fan-coil and Force Flo units are
intended for single zone applications.
These units have load capabilities of 200
to 1200 cfm. See Figure I-GI-1 for unit
components. Fan-coil units are available
as two-pipe, with or without electric heat
(one hydronic circuit) or four-pipe (two
hydronic circuits). Force-Flo units feature
two-pipe hydronic, electric heat only, or
steam only. Also, these units feature a
variety of factory mounted piping
packages.
Units with the three-speed fan switch
only, are available with the switch
mounted on the unit, or shipped sepa-
rately, to be mounted in the occupied
space. The unit mounted three-speed
general
information
Removable, noncorrosive,
positively-sloped drain pan that’s
easy to clean
Cleanableclosed-
cellinsulation(non-
fiberglass)
Two, three or
four-rowcoils
Easy filter access
withoutfrontpanel
removal
Smallerunitfootprint
Easy to remove fan assembly
Quietoperation
16-gagesteel construction
Factory assembled,
installedandtestedpiping
packagewithIAQdrainpan
tocollectcondensate
Factory installed
andtestedcontrols
Damperallowsup
to 100% fresh air
switch option, can be ordered with a low
voltage(24 volts AC) transformer and
three fan speed relays. The ship seperate
three-speed switch option, only comes
with a low voltage (24 volt AC) trans-
former and three fan speed relays.
The Tracer ZN010, ZN510, and ZN520
controllers are included inside the units
control box assembly. These controllers
utilize analog signals from a unit-mounted
control device or from a control device
mounted in the occupied space.
The controls interface option, includes a
24 volt AC transformer, and an interface
terminal board. Controls provided by an
external source, can be tied into the
interface terminal board, utilizing 1/4"
female spade connectors.
Model Number
Each UniTrane fan-coil and Force-Flo
cabinet heater has a multiple character
model number unique to that particular
unit. To determine a unit’s specific options,
reference the model number on the unit
nameplate on the fan scroll. The unit
nameplate also identifies the serial
number, sales order number, and
installation and operating specifications.
Following is a complete description of the
fan-coil model number. Each digit in the
model number has a corresponding code
that identifies specific unit options.

UNT-SVX07A-EN 5
Installation general information
FC B B 020 1 C P0 A 0 G 1 0 A A 2 M 000 0 0 1 0 0 0 A A 000 000 0 0 0 0 A 0 0
1 5 10 15 20 25 30 35 40 44
Digits 1, 2 — unit type
FC= fan-coil
FF = force flo
Digit 3 — cabinet type
A = vertical concealed
B = vertical cabinet
C =horizontalconcealed
D =horizontalcabinet
E =horizontalrecessed
F=verticalwallhung
H = vertical recessed
J =vertical cabinetslopetop
K = low vertical concealed
L =lowvertical cabinet
M = inverted vertical cabinet
N = inverted vertical recessed
Digit 4 — development sequence “B”
Digits 5, 6, 7 — unit size
020 040 080
030 060 100
120
Digit 8 — unit voltage
1 = 115/60/1 4 = 230/60/1
2 = 208/60/1 9 = 220/50/1
3 = 277/60/1
Digit9—pipingsystem/placement
A = no piping, RH, w/o aux drn pan
B = no piping, LH, w/o aux drn pan
C = no piping, RH, w/ aux drn pan
D = no piping, LH, w/ aux drn pan
E = no piping, RH, w/o aux drn pan,
extended end pocket
F = no piping, LH, w/o aux drn pan,
extended end pocket
G = no piping, RH, w/ aux drn pan,
extended end pocket
H = no piping, LH, w/ aux drn pan,
extended end pocket
J = piping package, RH
K = piping package, LH
L = piping package, RH, extd end pkt
M = piping package, LH, extd end pkt
Digits 10, 11 — design sequence
Digit 12 — inlets
A = front toe space
B = frontbargrille
C = frontstampedlouver
D = bottomstampedlouver
E = bottomtoespace
F = backductcollar
G = backopenreturn
H = back stamped louver
Digit 13 — fresh air damper
0 = none
A = manual,bottomopening
B = manual,backopening
C = manual,topopening
D = auto,2-position,bottomopening
E = auto,2-position,backopening
F = auto,2-position,topopening
G = auto,economizer,bottomopening
H = auto,economizer,backopening
J = auto,economizer,topopening
K = nodamper,bottomopening
L = nodamper,backopening
M= nodamper,topopening
Digit 14 — outlets
A = frontductcollar
B = frontbargrille
C = frontstampedlouver
D = frontquadgrille
G = topquadgrille
H = topbargrille
J = topductcollar
Digit 15 — color
0 = nopaint(concealedunitsonly)
1 = deluxebeige 4 = driftwoodgrey
2 = softdove 5 = stone grey
3 = cameowhite 6 = rose mauve
Digit 16 — tamperproof locks/leveling
feet
0 = none
A= lockingpanel
B = keylock access door
C = lockingpanel&keylockaccessdoor
D = leveling feet
F=
locking panel w/ leveling feet
G = keylockpanel,keylock accessdoor
w/levelingfeet
Digit 17 — motor
A = free discharge
B=highstatic
Digit 18 — coil
A = 2rowcooling/heating
B = 3rowcooling/heating
C = 4rowcooling/heating
D = 2rowcooling/1rowheating
E = 2rowcooling/2rowheating
F = 3rowcooling/1rowheating
G = 2rowcoolingonly
H = 3rowcoolingonly
J = 4rowcoolingonly
K = 2rowcooling/heatingw/elecheat
L = 3rowcooling/heatingw/elecheat
M= 4rowcooling/heatingw/elecheat
P = 2rowcooling/heatingw/1rowheat
Q = 2rowcooling/heatingw/2rowheat
R = 3rowcooling/heatingw/1rowheat
Digit 19 — coil series
2 = 144 FPF
Digit 20 — coil air vent
A = automatic airvent
M= manual air vent
Digits 21, 22, 23 — electric heat (208V
derate)
000 = no electric heat
010 = 1.0 kW (0.75 kW)
015 = 1.5 kW (1.1 kW)
020 = 2.0 kW (1.5 kW)
025 = 2.5 kW (1.9 kW)
030 = 3.0 kW (2.3 kW)
040 = 4.0 kW (3.0 kW)
050 = 5.0 kW (3.8 kW)
060 = 6.0 kW (4.5 kW)
070 = 7.0 kW (5.3 kW)
08 0= 8.0 kW (6.0 kW)
100 = 10.0 kW
Digit 24 — reheat coil
0 = none B=hot watercoil
A = steamcoil
Digit 25 — disconnect switch
0 = none
D = disconnectswitch
Digit 26 — filter
0= none
1= 1” throwaway filter
2= 1” throwaway pleated media filter
3= 1” throwaway, qty 2
4=
1” throwaway pltd media, qty 2
5= 1” throwaway, qty 3
6= 1” throwaway pltd media, qty 3
7= 1” throwaway, qty 4
8= 1” throwaway pltd media, qty 4
Digit 27 — main control valve
0 = none
A = 2-way,2-position,NO(30psig)
B = 3-way,2-position,NO(28psig)
C = 2-way,2-position,NC(30psig)
D = 3-way,2-position,NC(20psig)
E = 2-way,2-position,NO(50psig)
F = 3-way,2-position,NO(28psig)
G = 2-way,2-position,NC(50psig)
H = 3-way,2-position,NC(28psig)
Model Number Description

6UNT-SVX07A-EN
J = 2-way,modulating,0.7Cv(50psig)*
K = 3-way,modulating,0.7Cv(50psig)*
L = 2-way, modulating, 1.1Cv(60 psig)*
M=3-way,modulating,1.1Cv(60psig)*
N =2-way,modulating,2.3Cv(60psig)*
P=3-way,modulating,2.7Cv(60psig)*
Q =2-way,modulating,3.3Cv(60psig)*
R=3-way,modulating,3.8 Cv(60psig)*
X=field-supplied,NO
Y=field-supplied,NC
Z= field-supplied3-wiremodulating
Digit 28 — auxiliary control valve
0 =none
A =2-way,2-position,NO(30psig)
B =3-way,2-position,NC(28psig)
C =2-way,2-position,NC(30psig)
D =3-way,2-position,NC(20psig)
E =2-way,2-position,NO(50psig)
F =3-way,2-position,NO(28psig)
G =2-way,2-position,NC(50psig)
H =3-way,2-position,NC(28psig)
J =2-way, modulating,0.6Cv(60psig)
K =3-way, modulating,0.6Cv(60psig)
L =2-way, modulating,1.1Cv(60psig)
M=3-way,modulating, 1.1Cv(60psig)
N =2-way, modulating,2.3Cv(60psig)
P =3-way, modulating,2.7Cv(60psig)
Q =2-way, modulating,3.3Cv(60psig)
R =3-way, modulating,3.8Cv(60psig)
X=field-supplied,NO
Y=field-supplied,NC
Z=field-supplied3-wiremodulating
Digit 29 — piping packages
0= none
A = basic ball valve S & R
B=basicball valve S/man. crkt set
C= basic ball valve S & R w/auto crkt set
D = deluxe ball valve S & R
E=deluxe ball valve S /man. crkt set R
F = deluxe ball valve S & R w/auto crkt set
Digit 30 — control type
0= none
A= fanspeedswitch
E = Tracer ZN010
F = Tracer ZN510
Installation general information
G = Tracer ZN520
H= CSTI
Digit 31 — control option
D= unitmtdfanmode,unitvoltage,
K= wallmtdfanmode
V= unitmtdfansp w/setpnt
X= unitmtdfansp w/wallmtdsetpnt
Y= unitmtd fansp&wallmtdsetpntw/
comm.
Z= unitmtdfansp,on/cancel,setpnt w/
comm.
1= wallmtd on/cancelw/comm.
2= wallmtd fanspeed,setpnt,on/cancel
w/comm.
3=unitmtdfanspeedswitch,lowvoltage
4=wallmtddigital zonesensor,fanspw/
setpnt,on/cancel,comm.
5=wallmtddigitalzonesensor,setpnt,
on/cancel,comm.
Digit32 — IAQ options
0= none
1=dehumidification
4=dehumidificationw/sensor
Digit 33 — cntrl function #1
0= w/o exhaust fan/damper or alarm
Digit 34 — cntrl function #2
0=w/ooccupantcallorIAQstatus
Digit 35 — control function #3
0= none
1=occ/unocccontrol
2=condensateoverflowdetection
3=occ/unocc& condensateoverflow
Digit 36 — cntrl function #4
0= none
1=smokeinput
2=lowtemperaturedetection
3 = smokeinput&lowlimitsensor
Digits 37, 38 — future cntrl functions
Digit 39 —
projection panel/falseback
0 = none
A = 5/8”standard vertical recessed panel
B = 2” projection panel
C = 2.5” projection panel
D = 3” projection panel
E = 3.5” projection panel
F = 4” projection panel
G = 4.5” projection panel
H = 5” projection panel
J = 5.5”projection panel
K = 6” projection panel
L = 2”falseback
M = 3” falseback
N = 4” falseback
P = 5” falseback
Q = 6” falseback
R = 7” falseback
T = 8” falseback
Digit 40 — main autoflow gpm
A = 0.5 G = 3.0 N = 7.0
B = 0.75 H = 3.5 P = 8.0
C = 1.0 J = 4.0 Q = 9.0
D = 1.5 K = 4.5 R = 10.0
E = 2.0 L = 5.0 T = 11.0
F = 2.5 M= 6.0 U = 12.0
Digit 41 — auxiliary autoflow gpm
A = 0.5 F = 2.5 L = 5.0
B = 0.75 G = 3.0 M= 6.0
C = 1.0 H = 3.5 N = 7.0
D = 1.5 J = 4.0 P = 8.0
E = 2.0 K = 4.5
Digit 42 — subbase
0 = none
A = 2” subbase D =5” subbase
B = 3” subbase E =6” subbase
C = 4” subbase F =7” subbase
Digit 43 — recessed flange
0 = none
A = recessed flange
Digit 44 — wall boxes
0 = none
A = anodizedwallbox

UNT-SVX07A-EN 7
Installation general information
Table I-GI-1. Fan-coil component data
unit size 02 03 04 06 08 10 12
CoilData
Face Area — Ft2(cm2) 0.8 (743) 0.8 (743) 1.1(1020) 1.6(1490) 2.1(1950) 3.2(2970) 3.2(2970)
LxDxH— In. (cm)
2-Row 15x1.7x8 15x1.7x8 20x1.7x8 29.5x1.7x8 38x1.7x8 57x1.7x8 57x1.7x8
(38x4x20) (38x4x20) (51x4x20) (75x4x20) (97x4x20) (145x4x20) (145x4x20)
3-Row 15x2.6x8 15x2.6x8 20x2.6x8 29.5x2.6x8 38x2.6x8 57x2.6x8 57x2.6x8
(38x7x20) (38x7x20) (51x7x20) (75x7x20) (97x7x20) (145x7x20) (145x7x20)
4-Row 15x3.5x8 15x3.5x8 20x3.5x8 29.5x3.5x8 38x3.5x8 57x3.5x8 57x3.5x8
(38x9x20) (38x9x20) (51x9x20) (75x9x20) (97x9x20) (145x9x20) (145x9x20)
Volume — Gal. (Liters)
1-Row(Heat) .06 (.23) .06 (.23) .08 (.30) .11 (.42) .14 (.53) .21 (.79) .21 (.79)
2-Row .12 (.45) .12 (.45) .15 (.57) .22 (.83) .28(1.06) .42 (1.59) .42 (1.59)
3-Row .18 (.68) .18 (.68) .23 (.87) .33 (1.25) .42 (1.59) .62 (2.35) .62 (2.35)
4-Row .24 (.91) .24 (.91) .30 (1.14) .44 (1.67) .56 (2.12) .83 (3.14) .83 (3.14)
Fins/Ft (cm)
2-Row 144 (4.7) 144 (4.7) 144 (4.7) 144 (4.7) 144 (4.7) 144 (4.7) 144 (4.7)
3-Row 144 (4.7) 144 (4.7) 144 (4.7) 144 (4.7) 144 (4.7) 144 (4.7) 144 (4.7)
4-Row 144 (4.7) 144 (4.7) 144 (4.7) 144 (4.7) 144 (4.7) 144 (4.7) 144 (4.7)
ReheatCoilData (1-Row)
Hot Water or Steam
Face Area — Ft2(cm2) 0.6 0.6 0.8 1.2 1.6 2.4 2.4
(557) (557) (743) (1120) (1490) (2230) (2230)
LxDxH— In. (cm) 15x1.5x6 15x1.5x6 20x1.5x6 29.5x1.5x6 38x1.5x6 57x1.5x6 57x1.5x6
(38x4x15) (38x4x15) (51x4x15) (75x4x15) (97x4x15) (145x4x15) (145x4x15)
Volume — Gal. (Liters) .12 (.45) .12 (.45) .15 (.57) .22 (.83) .28(1.06) .42 (1.59) .42 (1.59)
Fins/Ft (cm) 48 (1.6) 48 (1.6) 48 (1.6) 48 (1.6) 48 (1.6) 48 (1.6) 48 (1.6)
Fan/MotorData
FanQuantity 1 1 1 2 2 3 3
Size — Dia” x Width” (cm) 6.31x4 6.31x6.5 6.31x7.5 6.31x6.5 6.31x7.5 (1) 6.31x7.5 6.31x7.5
(16x10) (16x17) (16x19) (16x17) (16x19) (16x19) (16x19)
Size — Dia” x Width” (cm) (2) 6.31x6.5
(16x6.5)
MotorQuantity 1 1 1 1 1 2 2
Filter Data
1”(cm)TA andPl.Media
Quantity 1 1 1 1 1 1 1
Size — In. (cm) 87/8 x 191/887/8 x 191/887/8 x 241/887/8 x 335/887/8 x 421/887/8 x 611/887/8 x 611/8
(23x49) (23x49) (23x61) (23x85) (23x107) (23x155) (23x155)
1” Fresh Air Filter (only on cabinet styles D, E, and H with bottom return and fresh air opening)
Quantity 1 1 1 1 1 1 1
Size — In. (cm) 51/2x 191/851/2x 191/851/2x 241/851/2x 335/851/2x 421/851/2x 611/851/2x 611/8
(14 x 49) (14 x 49) (14 x 61) (14 x 85) (14x 107) (14x156) (14 x156)
Table I-GI-2. Low vertical fan-coil component data
unit size 03 04 06
Coil Data
Face Area — Ft2(cm2) 1.1(1020) 1.6(1490) 2.1(1950)
LxDxH— In. (cm)
2-Row 20x1.7x8(51x4x20) 29.5x1.7x8(75x4x20) 38x1.7x8(97x4x20)
3-Row 20x2.6x8(51x7x20) 29.5x2.6x8(75x7x20) 38x2.6x8(97x7x20)
Volume — Gal. (Liters)
1-Row(Heat) .08 (.30) .11 (.42) .14 (.53)
2-Row .15 (.57) .22 (.83) .28(1.06)
3-Row .23 (.87) .33 (1.25) .42 (1.59)
Fins/Ft
2-Row 144 (4.7) 144 (4.7) 144 (4.7)
3-Row 144 (4.7) 144 (4.7) 144 (4.7)
Fan/MotorData
FanQuantity 1 1 1
Size—Dia”xWidth”(cm) 5x23(13x59) 5x32(13x83) 5x41(13x105)
MotorQuantity 1 1 1
Filter Data
1”(2.5cm)TA
Quantity 1 1 1
Size — In. (cm) 87/8x241/8(23x61) 87/8x335/8(23x85) 87/8 x 421/8(23x107)

8UNT-SVX07A-EN
Installation general information
Available Models
model A vertical concealed model B vertical cabinet model C horizontal concealed
model D horizontal cabinet model E horizontal recessed model F wall hung cabinet
model L low vertical concealed model K low vertical cabinet
model J slope-top cabinet
model H vertical recessed
model M inverted vertical cabinet
(Force Flo only) model N inverted vertical recessed
(Force Flo only)

UNT-SVX07A-EN 9
Installation general information
Factory-Installed Piping Packages
Note: This figure shows piping package components and basic arrangement. It is not
an accurate pictorial of what factory-installed piping packages look like.

10 UNT-SVX07A-EN
Installation dimensions & weights
Vertical Concealed Unit Dimensions & weights, in-lbs.
Unit
Size 02-03 04 06 08 10-12
A 2’-8 11/16” 3’-1 11/16” 3’-11 3/16” 4’-7 11/16” 6’-2 11/16”
B 1’-9 5/16” 2’-2 5/16” 2’-11 13/16” 3’-8 5/16” 5’-3 5/16”
C 1’-10 13/16” 2’-3 13/16” 3’-1 5/16” 3’-9 13/16” 5’-4 13/16”
D 1’-5 5/16” 1’-10 5/16” 2’-7 13/16” 3’-4 5/16” 4’-11 5/16”
E 1’-7 5/16” 2’-0 5/16” 2’-9 13/16” 3’-6 5/16” 5’-1 5/16”
operating weight 81 109 139 147 200
shippingweight 68 96 123 131 182
Notes:
1.Coilconnections are always on thedrainpanside and opposite thecontrol
box.
2.Coil connections are5/8”O.D.sweat.See pages21-22for locations.
3. All duct collar dimensions are to the outside of the collar.
4.See fresh air openingdimensionson pages23-24.
Vertical Concealed, Model A