Trust RB01-TFB36 Series User manual

TRUST AIR CONDITIONING EQUIPMENT CO.
Prepared By: Engineering & R & D Department.
Shiraz- May 2017
AIR HANDING UNIT
TRUST AIR CONDITIONING EQUIPMENT CO.
Prepared By: Engineering & R & D Department.
Shiraz- May 2017

·. 9TRI:IST
· Air Conditione ' rs · ...
····ElectriC Air Haridler
. .
RECOGNIZE SAFETY SYMBOLS, WORDS AND LABELS .1
' INTRODUGION . ... : ·. .' ... ~ .. .. ·: : .... ·-: ~ ·.· ... : ...... 2
INSPECTION AND UNPACKING -: : .... • ... , · .. .- . ; .... 2 ·
. '
NOTES TO INSTALLER ............ ~ - -.; ." .......... 2
·INSTALLATION .......... ; ~ . : .·.'. ' ... : ..... ~ . ~ ... 2
. .
Codes .. · ... · .. ·: ...... · ... ; . .. ~ .··.· ..... · .... .. ~ ... 2
Power Considerations ... · ... ~ ........... . ..... 2
Electric Heat Kits ............................ 2
· Location : ........ ..: ·.·: ;· ....... · ............. .. ;2
C:lea ·rances ... ~ .... ·. : .... .: . ~ ·.· ............... 2
Upflow AppliCation ....... · .. · ..... .; ........ · .. 3
Hori~ontal Applicaton ......... .· .. _· .... ~ : .. .. .4 .
·· . Downfl.ow Applicatio _n .. · ........... .. · .. .' .. ~ ... 5
Connett Refrigerant Piping .... ~ .... ,.. : ; ...... 6
. •·Factory
and CFielq ~ installed Expansion Valv~s ..... 6 ·
Ductwork · ....... ~ ..... ~ ... . .... ~ ... . .. .. .- .... 7·
Return Air Ducting ............... ; .......... 7
. \ . . . . . .
Return Air Platform Height .... ~ .. ~ : ..... ~ ~ ... 7 ·
LINE VOLTAGE CONNECTIONS .. · ...•.... .': ........ 7
24 VOLT CONTROL
SYSTEM ......•............... 8
CONDENSATE PLUMBING . . .......•..... · ... .' . .... 8
.WIRING.OIAGRAM .
.... .. .......... ; .. ~. : .. ........ 9 .
DIMENSIONS . ~ ....... : ........ ~ ..... : .... · .... 10
·BLOWER
SPEED/STATIC OPERATION TABLE ........ 11
ELECTRIC HEAT KIT ............................ 12
.. .
Heating Specifications .. , ......... _. ......... 13
SERIES NOMENCLATURE ..................... . .. 14
. NOTE:
THESE INSTRUCTIONS .ARE INTENDED AS AN AID TO QUALIFIED
SERVICE .PERSONNEL FOR PROPER INSTALLATION, .
ADJUSTMENT AND OPERATION OFTHIS EQUIPMENT. READ
THE ENTIRE INSTRUcTION
MANUAL THOROUGHLY BEFORE
ATTEMPTING INSTALLATION OR OPERATION. ·
1
•' · .·
':· .... r: ·

. . RECOGNIZE SAFETY SYMBOLS, WORDS AND LABELS
. .
What You Need.To Knqw About Safety lnstrudions
Warning and Important Safety Instructions appearing in this·
manual are not meant to cove(all possible conditions and
. situations that may occur:' common sense, caution anq care.
must be exerCised wben operating or cleaning tools and .
· equipment ·. · ~ ·· ·
Always
contad .. yqur dealer/distributor, service agent or
· manufacturer about problems or conditions you do not
unde~tand . · -
A This is the safety alertsymbol. It is used to alert you to
potential personal injury hazards. Obey all safety messages .
that follow this symbol to avoid possible injury or death:
A DANGER A
DANGER indicates an imminently hazardous situation which,
if not avoided, will .result in' death or serious injury.
A WARNING A
WARNING indicates a potentia-lly hazardous situation which,
if not .avoided, could result.in death or serious injury. ·
I A "CAUTION A I ;
..... ... ~
CAUTION indicates a potentially hazardous situationwhich, if
not avoided, may result in minor or moderate injury.
.CAUTION
CAUTION used ·witho.ut the safety alert symbol indicates
.apotentially hazardous situation which, if not avoided,
may result in property damage. ·
-
,--:---
1
·.,
A WARNING A
IMPROPER I~STALLATION, ADJUSTMENT,
ALTERATION, SERVICE OR MAINTENANCE · cAN .
CAUSE INJURY, PROPERTY
DAMAGE OR LOSS OF LIFE. ·
READ . . THIS ·. MANUAL · COMPlETELY BEFORE
BEGINNING
ANY WORK AND FOLLOW ALL SAFETY
.PRECAUTIONS.
A QUALIFIED · · INSTALLER MUST PERFORM .
INSTALLATION
AND SERVICE.
DO ·NOT . DESTROY THIS · MANUAL •. PLEASE READ
CAREFULLY
AND KEEP IN A SAFE PLACE FOR FUTURE
REFERENCE BY A SERVICE TECHNICIAN•
. THESE ·INSTRUCTIONS. ~RE INTI;NDED AS AN .All;) TO
QUALIFIED SERVICE
PERSONNEL FOR PROPER
INSTALLATION, . ADJUSTMENT AND OPE .RATION OF
.· THIS
COMPONENT. . READ .THESE ·· INSTRUCTION ~ S
THOROUGHLY BEFORE ATTEMPTING INSTALLATION .
OR OPERATION, FAILURE TO . FOLLOW .THESE
iNSTRUCTIONS
MAY . RESULT . .IN IMPROPER
INSTALLATION ~ ADJUSTMENT, SERVICE OR
· . MAINTENANCE, POSSIBLY RESULTING . IN FI .RE, .
.
EL~Cf.RICAL SHOCK, PROPERTY DAMAGE, PERSONAL
.INJURY OR DEATH.
B. EFORE . PERFORMING · ANY WORK ON THIS
EQUIPMENT, POWER.SUPPLY MUST BE .TURNED OFF AT
, THE HOUSEHOLD SERVICE . BOX TO AVOID THE
.
PO · SSIBILITY OF ,S. HOCK, INJURY, DAMAGE TO
EQUIPMENT, OR DEATH. .
DO NOT STORE OR USE GASOLINE . OR . OTHER
FLAMMABLE VAPORS AND . LIQ - UIDS, OR OTHER
COMBUSTIBLE MATERIALS INTHEVI .CINiTY OF THIS
AIR HANDLER OR ANY OF ITS MATCHING SYSTEM
. COMPONENTS (COND . ENSING UNIT, HEAT PUMP OR
1
t : URNA~E}. . .
\

NOTES TO INSTALLER
The words "SHALL" and "MUST" indicate a requirement which
is essential to satisfactory and safe p~oduct · performance. The
words "SHOULD" and· "MAY" indicate a recommendation or
advice which is not essential and nqt require.d but which may
be useful or helpful.
The instructions are· for the use of qualified individuals specially
trained and e:Xper:ienced in the installation of this type
· equipment and related system components. · · ·
Installation and .service personnel are required by some locales
to be licensed. Persons not qualified shall : not ·install this
equipment nor interpret these instructi6ns.
· INTRODUCTION
Models A*PB and Plare designed for flexibility and can be used
for upflow, horizontal or downflow applications. These .units
are available
for systems of 18,000 through 60,000 BTUH .
nominal.cooling·capaci. ty ·. Factory authorized electric heater kifs.
are available in 5
kW through . iO kW · sizes, . See .product ..
specifications for available accessory kits.
INSPECTION AND UNPACKING
A thorough inspection of the shipping container r:nust be made
immediately upon receiving your unit. Look for any punctures
or openings, and if it appears damage has occurred, note it em
the fr~J.ght bill before signing. Contact delivering carrier.
immediately to inspect damage. Do pot begin installation work
should begin until this inspection is completed.
INSTALLATION
Codes ·
The installer must·comply with all local, state and federal codes
and/or regulations
pertaining to this type of equipment and its '
installation.
Such co<;Jes and/or regulations shall take precedent
over any recommendations contained herein. If there are no
loca I codes on the subject, installations sha II be made in
accordance with the Nationa I Electrical Co9e (N EC) and ·
recommendatipns made by the National Board of Fire ·
Underwriters. ·
Power Considerations
The installer shall check available .. power to make certain it
matches the unit name plate rating and that constant voitage
· can be maintained on the unit. Unsatisfactory performance or a
possible hazard could otherwise result. The loca ·l power
company should be contacted with questions concerning power
supply. · · ·
Electr:ic Heater Kits ·
Location
All models are approved for alcove,·closet, and attic installatic
in the upflow, downflow or horizontal position. Refer to tt
appliCable section of thi$ manual on pages 3-5 for spec.if
installation instructions·on _
eac h position.
. r l> •
The air handler must be installed in a level position and shou
be located for ease in connecting air ductwith proper a
distribution. . ·
. . .
Exterior surface of cabiriet may sweat when unit is installed
non-air-conditioned space ~uch as attic or garage~ Installer mu
provide protection such as full-size auxiliary drain pan on«
units. Be sure to allow for filter access for periodiC user servicin
·· In addition, caulking must be applied around the power ar
control wires entering the control box. This will "pre.vent c
leakage
into · and condensate from forming .inside the contr
box.· ·
Clearances ·
Clearances from the air handler to the combustibles are ze
· inches from all sides, top, and bottom; one inch from dischan
air plenum; and the duct within ·36 inches of the plenum. .. ·
Provide adequate space for servicing the air handler; at least
inches. All service and maintenance can be performed from t
· front access .doors of the air handler.
-..J
A WARNING A
DO NOT,· UNDER. ANY .CIRCUMSTANCES, CONNEC1
RETURN DUCTWORK TO ANY OTHER HEAT-PRODUCIN~
DEVICE SUCH AS FlREPLACE INSERT, STOVE, . ETC
UNAUTHORIZED USE OF SUCH DEVIC. ES MAY RESULT 1•
FiRE, CARBON MONOXIDE POISONING, EXPLOSION
PERSONAL INJURY, OR PROPERTY DAMAGE.
. Only EEB/EEC series electric heater kit may be install~d intoth .e .
air handler. See Electric Heat section on p· age 12 for more
information~
' )'
2

Upflow Applicaton
In an upflow application normally a duct is employed as a return air means as shown in Figure 1 below
or a platform is installed as in Figure 2.
UpflowInstallation With Return Duct
DISCHARGE DUCT (600 FPM)
~ "'-----~- T
24" MINIMUM.
AIR
HANDLER
(MAY ALSO BE
DOWNFLOW)
RETURN DUCT WITH A MINIMUM
OF
1/2" FIBERGLASS DUCT LINER (500 FPM).
REFER TO LOCAL CODES.
Upflow Installation With Return Platform
·. .
DISCHARGE DUCT (600 FPM)
--~- . -T
24" MINIMUM
AIR HANDLER
RETURN PLATFORM LINED WITH
1" FIBERGLASS INSULATION.
REFER TO LOCALCODES.
3
=.,_____ -.- ...,.._-_..,---,---=·.-=.- " ,· -. -.-·. ..,.--- . . .
. )

Horizontal Application
·This type of position is lJSUally used in an attic or crawl space. The air .·
handler may be laid on ttie left or right side for horizo·ntal applications.
The factory-installed coil
is intended for left-side-down installation.
This type of installation requires a retur ·n air duct to be attached to the
air handler-inlet. The opposite end of the return air duct is then routed
to a return air grille mounted to the ceiling or wall. This duct MUST be
no smaller
than the inlet opening of the air handler.
For
Horizontal Right Application:
1. Remove.front . panel~ from the air handler.
2. -Remove coil assembly from the a1r handler.
3. Remove horizontal drain pan from left hand side of air handler and
re-install on
right hand side. Change splash baffle loeation from left
hand to right hand side of drain pan flan~e. ·
4. Remove the ho_rizontal coil support bracket from the right hand side
of the air handler.
5. Reinstall coil assembly in the air handler.
· 6. R· eattach coil support bracket to the left hand side of the air
handler.
7. Replace front panels.
Horizontal Installation
SERVICE
PLATFORM · AIR HANDLER SUPPORTS
(FIELD SUPPLIED)
4
A CAUTION A
Horizontal applications in unconditioned·areas, such .
as attics above a ceiling, require special .
pre~autionary mea~u(es. An aux'ili. ary drain pa·n
havmg at least two inches overall clearance around
the unit MUST be field-fabricated and installed as
shown below. ' ·
The drain outlet and drain : line for the auxiliary
drain pan need not be trapped but should be·sloped
to a suitable drain.
A CAUTION A
For optimum condensate drainage performance in
horizontal installations, unit should be leveled
along the length and width. Failure to follow this
caution may result iri product or property darrlage.
A CAUTION A
A P~type trap must be installed in the primar)t dr~in
line as shown in figure 3 below.
.t
RETURN AIR
AUXILIARY
DRAIN LINE

Downflow Application·
·
.· Relocating Coil
The coil MUST be'relocated for downflow
application.
1. Remove coil access door. "'
2. ~I ide coil out of air handler.
3. Remove coil .rack from air handler by removing ·
screws from side of air hanpler.
4. ·Relocate rack in a· ir handler as shown .iri Figure 4
using
screws from side of air handler.
5. Turn air handler into downflow position.
6. Slide refrigerant coil into air handler.
7. Reverse and replace air handler door(s).
Installation:Cbnsiderations ·· ·
• No downflow sub:.base is required with . this ~ - ir
handler, however, localcodes may require the use
of a non..:combustible sub-base when used with
electric heater kit.
.•
An "L" or "T" shaped duct enclosure MUST be used
. as a supp_ly plenum. No registers or outlets SHALL be
located directly below the air handler supply outlet.
• Size and frame the floor opening as shown in Figure 5.
Refer to the Dimension drawing on page 10. Care
MUST be taken not t·o overcutthe floor opening.
• Caulk around the floor opening with a non-
f-lammable caulk such as silicone. Set . the air handler
in place and secure
the airhandler properly.·
•
Allow access to the low voltage connection by
bVilding the platform so that there is a minimum of
5 /2u between the floor and the unit flange. .
Ret~m · Air Filter Clearance
On downflow applications, certain ·coil models ~ill
protrude from the top of the air handler (coils greater
than 15" tall on A24 through A3G air handlers and coils
greater than 18".on A42 through AGO air handlers). On
these models, the return air filter may be removed and
a .separate
filter grille may be installed for closet
applications. ·
If this method is not desirable, cabinet extension kit No.
G5-1647 . for A24, A30, and A3G; or No.G5-1G49 for A42,
· .A48, and AGO may be ordered. The extension kit screws
to the side of the air- handler and extends the length of
. the air handler coil cabinet. ln.addition, the kit includes .
a
filter _compartment and·door.
Emergency Drain.Opening
The indoor coil emergency drain opening must be used
for this application. Refer to page 8 for instructions on
condensate tubing. ·
R-:locatlng Coil for Downflow Position .· ·
FILTER
DOOR
UP FLOW
POSITION
. FILTER
DOOR
Remove the three
screws on both sides.
Flip over and replace
in new position using
pre-punched holes.
Supply Plenum Floor Opening
AIR HANDLER·
----
'1!1·
UNIT
LANGE
SUPPLY
OPENING

Connect Refrigerant Piping
Use field supplied ~ubing of refrigerant grade. Suction tube
m .- List be insulated. Do not use damaged, dirty, or
contaminated tubing because it may plug refrigerant flow
control device. ALWAYS evacuate the coil and field supplied
tubing before opening outdoor unit ~ervice valves.
Factory and Field-Installed Expansion Valves
1. The bulb and capillary tubing should be routed outstde
of the case. Make sure the capillary tube will not contact
any sharp edges
of the case. On f~ctory ins.talled
expansion valves, the adjustable_ s,ensmg ~ul~ 1s not
permanently installed onto the coils vapor lme m order
to allow easy removal during installation.
Vapor line
Sensing bulb
attached with
clamps
8 p'clock 4 o'clock
Attach bulb to
vapor line at four
or eight o'clock
position
A CAUTION A
THE TXV VALVE CAN BE DAMAGED BY EXTREME
HEAT. PROPER PRECAUTIONS SHOULD BE TAKEN TO
AVOID OVERHEATING THE TXV VALVE AND CAUSING
DAMAGE TO THE INTERNAL COMPONENTS.
A CAUTION A
THE TXV SENSING BULB · CAN BE DAMAGED BY
EXTREME HEAT FROM BRAZING.
THE BULB SHOUlD
· BE RE - MOVED BEFORE PERFORMING ANY BRAZING
PROCEDURE . AND NOT INSTALLED UNTIL AFTER THE
VAPOR AND LIQUID LINES ARE BRAZED AND LEAK
CHE(:KED.
6
2. To assure accurate sensing and the best performance the
bulb should be placed on a horizontal section of the ·
vapor line at the four or eight o'clock position and at ·,.
least
6" from the coil manifold. · ·
" A WARNING A
ALWAYS HAVE A FIRE 'EXTINGUISHER AVAILABLE
.WHEN WORKING WITH AN OPEN .fLAME..
ALWAYS
USE SAFETY GLASSES, PROTECTIVE
CLOTHING,
AND WORK GLOVES.
~·
' 0
<jg
TXV valve can be accessed
through the valve cover-plate
on the front of the air handler.
3. Attach the bulb securely with the copper strap provided.
4. Insulate the bulb thoroughly with a suitable insulation
materiai
such as cork tape.
5. Coils · with TXVs should be charged 10-12 degrees
(+ or- one degree) of sub-cooJing. This supercedes any
subcooiing value listed
with condensing unit's literature.
For . the majority of installations no adjustment · to the
TXV setting is required. However, if the measured
superheat is less than 4° or greater than so · an
adjustment
is required. The adjustment st~m i~ at the
base of the valve under the flare nut. To mcrease
superheat~ tighten the stem clockwise and to decrease
superheat, back-out
th~ ste,n1 counter-clockwise. Us~ a
1t4" refrigeration service wrench for this function. ·
NOTE:
When removing refrigerant, always use standard reclaim
procedures.

Ductwork
This air handler shall not be installed without supply plenums
a·nd proper ducfing. Connectsupply air
duct over 1/2" flanges on
supply
air opening. Secure duct to flang ·e and seal connection.
u' se flexible connectors between ductwork and unit at discharge
connection. Ductwork passing through unconditioned space
must· .be insulated and covered with vapor barrier.
Return Air oUding
The dimensions of the return air duct or platform must be at a
minimum the same size as the return air opening on the air
handler, regardless
of the air handler position. ·
When framing a return air platform, the opening size should be
.
as shown · below ; If the air handler is to be installed in a closet,
be sure to allo\1\,-room fqr wiring and refrigerant lines.
iJ TopVi~w
~
ICI ..
·•ID_I.F
-i Framed-in t
Opening
Air
B Handler
1
Bottom ·
-· 1
-
...E._
I -A
..
I
MOOEL A B c D E F
IN CM
· IN
CM IN CM IN CM
IN
CM IN CM
i
RB01- TFB36* 14 37.3
141/4
36.2 2 5 2 5 4 10.1 4
10 .1
RB01- TFB48*
1631 81 41.6
221/4 56 .5 3 7.6
3 7.6
1314 4.4 2 5
RB01-TFB60 * 1
6318 41 .6 . 221/4 56.5
3
7.6
3
7.6 . 1314
4.4 . 2 5
I
Return Air Platform Height
If the air handler· is to be used in the upflow position, the height
of the return air platform should be no smaller than the height
listed below for the specific model of air handler.
Platform
Model Height
Inches Cm
v
RB01-TFB36DXN02/SOON 12NNW1 A01
14
35.6
RB01-TFB48DXN02/SOON12NNW1801
16 40.6
RB01-TFB60DXN02/SOON12NNW1801
18
45.7
7
LINE VOLTAGE CONNECTIONS
A WARNING A
. BEFORE PERFORMING ANY WORK ON THIS EQUIPMENT,
POWER .· SUPPLY MUST BE . TURNED OFF AT THE
HOUSEHOLD SERVICE BOX TO.AVOID THE POSSIBILIT_Y
OF SHOCK, INJURY, DAMAGE TO EQUIPMENT
OR DEATH.
1. The power supply can be connected through the right si1
or top of the air handler. Conduit knockouts are providE
for 112", 3t4", 1 ",and 1114" conduit. ,
2. Refer to the Control System section for recommended lo\
voltage wire gauges. · ·
3. See Power Supply Table on page 9 for power . supp l
specifications.
4. Use only copperconductors for supply wiring.
5. The air handler must be permanently grounde a
The ground lug
is located in the field wiring box.
Conduit Knockout Locations
..
Top of air
handler
0
00
I
Conduit knockouts
Grounding Lug Location
Field wiring box
(detail)
Grounding lug
Right side of
air handler
Conduit knockouts
0

:
24 VOLT CONTRO~ $YSTEM
A WARNING A
BEFORE PERFORMING ANY WORK ON THIS EQUIPMENT,
POWER SUPPLY MUST BE TURNED OFF AT THE
HOUSEHOLD SERVICE BOX· T0 AVOID.THE POSSIBILITY OF
SHOCK, INJURY, DAMAGE TO EQUIPMENT,
OR DE~TH.
A WARNING A
IMPROPER INSTALlATION OF THE ELECTRICAL WIRING
OR THE HEAT
ASSEMBLY MAY RESULT IN FIRE, SERIOUS
PERSONAL INJURY,
OR DEATH. .. . . . .
Connection to unit
. ., .
Wire low voltage in accordance with wiring label on the blower.
Use no. 18 AWG wire to make the low voltage connections
between
the thermostat, the unit, and the outdoor equipment.
If the thermostat is located more than 100 feet from the unit
use 16 AWG wire. All wiring must be. NEC Class 1 and must be
separated
from incoming power leads. ·
The thermostat preheat anticipator should be adjusted to match
the current listed below for the EEC model heat assembly to be
installed. -. ·
.-
THERMOSTAT
EEC HEATER MODEL
TYPE 5 7.5 . 10 15 20
SINGLE STAGE .4 .4 .4 .8 .8 .
TWO 1ST NIA N/A. N/A .4 .4
STAGE 2ND N/A N/A · N/A .4 .4
When used with a heat purnp, the heat output must be staged
for models above 10 kW. W1 should be wired as auxiliary heat
to assist the heat pump. W2 must only be wired as emergency
heat. Both stages
of heat should nev~r be wired so as to be
energized
while the heat pump is operating., See the Blower
Speed/Static Table for maximum all. owable auxiliary first-stage ·
heat. All EEC series .electric heat assemblies over 10 kW have
b~eakers factory-installed on the heat as~embly.
- . I
Transformer Information
The low-voltage transformer is equipped with a 208- or 23E>-volt
tap. The transformer is factory wired for 230-volt op~ratioh. For
208-volt operation, remove the yellow . wire from the 230-volt
terminal.and install
it onto the 208-volt terminal.
The acceptable voltage range for each tap is as follows: ·
Tap Voltage Range
230 207-253
208 187-229
Time Delay Relay Information
A fan relay is provided to control the operation of the indoor
fan motor. All models are equipped with a time delay "OFF"-
type fan relay which will allow the fan motor to continue to
· operate for a preset time after the relay is de-energized:
8
-- --
...
CONDENSATE DRAIN PLUMBING .
A CAUTION A
.. : .
For downflow, or any installation where condensate ··
overflow could create a hazard or water damage, the
emergency drain fitting MUST be used. The emergency
drain MUST be left open. If the emergency drain has to be
piped away.from the air handler, its · outlet . MUST be
installed in a location that would allow any drainage to be
immediately noticed. •
Install condensate
drain trap as close to the coil as possible.
·· Use drain connection size or larger. Do not operate unit ·
without trap (see illustration below.) Unit must be level or
slightly incline-d toward drain.
Condensate Drain Trap
A CAUTION A
1. Do not connect the drain line to a closed sewer.
· 2. Neverterminate an open sewer or drain connection
within the return air duct, platform or return plenum.
3. Pitch the drain line at least 114" per foot away from the
drain pan. · ·
' . . . .
4 ~ If condensate drain connection is onthe negative side of
the blower, a trap must be installed to ensure positive
drainage.
5. Condensate drain lines should not be reduced in size
from the connection size supplied:
6. The dr:ain line should be insulated where necessary, to ..
prevent sweating and damage due to condei"\Sate
forming on the outside surfac:e of the line.
7. Test condensate drain line with water before ' operating
system. · -
· 8..
If unit is located in or above a living .space- where
damage may result from condensate overflow, ct fiet"
supplied, external con· densate pan should be·installed
under the . entire unit, and a secqndary condensate line
(with appropriate trap) should be run from the unjt into ·
the pan. Any condensate in this external condensate
pan should be drained to a noticeable place. As an ·.
alternative to using an exte ·rnal condensate pan, some
localities may allow the runnin.g of a separate 3/4'~
condensate line (with appropriate trap) per local code
to a place where the condensate will be noticeable;

Wiring Diagram
8
E
BE
GN
RD
POST PURGE
FAN RELAY
CD 1-CIRCUIT
FEMALE
RD
. BE
. 4-CIRCUIT
FEMALE
BK
w
E 8 WG
KE N R D
HEAT CONTROL
RECEPTACLE FOR
ELECTRIC HEAT WHEN
APPLICABLE
&
C W W2 G
I I I I R
I
LOW VOLTAGE
CONNECTIONS
I I I I L- -TO R_Q_N THERMOSTAT_ -
I I I L - ~ - TO UlN_lHERMOSTAL -
I I L- - - - _TQ_Yiz_QN__]iERMOSTAL -
I L - --'- - - - - TO VLQN_IHERMOSTAl_ -
L- - - - - - - ·_ TO OUTDOO~N!l_ - -
POWER SUPPLY TABLE
SINGLE CIRCUIT SUPPLY
REMOVE & CONNECT ~
TO THE 208V TERMINAL
FOR 208V OPERATION
YW
CAPACITOR
BK
.. .. ... ~ .. .:;· . .
L1
L2
~~\lit•·
EQUIPMENt ·
GROUND
BK
, .
BLOWER MOTOR
FIELD WIRING
FACTORY WIRING
NOTE: INSTALL JUMPER BETWEEN W& W2
FOR SINGLE STAGE HEAT OPERATION
DUAL CIRCUIT SUPPLY
kW
Phase · No. of
MBTUH Heat Min. Max. Wire Ground Min. Wire Max. Fuse Wire Size (2.)
. Ground Size (2.)
230
Supply 2081230 Load
Wire CD Fuse ~
Size (2.)
Size ~ Ampacity CD Size CD
Ckt1 Ckt2
Ckt3
Ckt1 Ckt2 . Ckt3
VAC
Circuits Amps Ampacity Size AWG
MM
2
AWG
MM
2•
Ckt1 Ckt2 Ckt3
Ckt1 Ckt2 Ckt3
AWG MM
2
AWG MM
2
AWGMM
2
AWG MW. AWG MM
2
AWG MM
2
0 1 1
5.0 15 14 2.1
14 2.1 - - - - - - -. -- - - - -- - - -
5*
1 1 1'2 .6/17.1
20.9
30 30
10 5.3
10 5.3 - - - -- - - -· -- - - - - - - -
10*
1 1
25.6/34.1 41.7 57 60 6
13.3 10
5.3
..,.
-- - ----- - -
....,
- -
,...
--
15* 1 1or2 38.4/51.2
62 .5
83 90
4 21.2 8
8.4 57 26 -
60 30
-6 13 .3 10 5.3
~
- 10
5.3_ 10
5.3 -
20* 1 1or2 51.2/68.2
83.4 109 110 2 33.6
6 13.3 57 53 - 60 60
-6
13.3 6
13 .3 - - 10 5.3 10 5.3 -
-
*kWaoes not include motorwatts.
CD Ampacities and over current protec~ion based on largest airhandler motor load. Refer to specific mime plate for exact ampacity and overcurr~nt protection size.
Minimum wire ampacity values are used for sizing field power conductors. Refer
to the National Electrical Code (latest version), Article 310, for sizing conductors. When more than three current-carrying
canductors are in the same conduit, the conductor's ampacity MUST be derated. See Note 8 ofTable 310 for ampacity adjustment factors.
~ Maximum size fuse or HACR-type circuit breakerfor field wiring protection. .
@Wire size based on 75°C copperwire with no more than three current-carrying conductors in the same condu.it. All wiring
MUST conform to the National Electrical Code and all local codes.
9
-
-
-
-
-

Dimensions
-~+------,-- G ----1
' ·. ~
. ..
~r==========~-.
•l OUTLETOPENING l
1
H .
~~--~~~~~--
LOW VOLT CONNECTIONS
0
~-----~0-~=~~---~
LINE VOLTAGE KNOCK OUTS
. ,....___. _I
LOW VOLT CONNECTIONS
I
E
K~~~ -
. .. INLET WIDTH
INLET·WIDTH
All dimensions in inches ' '
.Models A B c D E F G.· . H I . J K
RB01-TFB36.* 2 1/4' 3 5/8 ~3. 1/4 15 1/4 43 3/8 15 17
22 18 14 ' 16 1/4
~
RB01-rFB48* ' 2 1/4 3 5/8· 13 1/4 ' 15
481/8 19 1/8 21 26 22 16 3/8 22 1/4
l
RB01-TFB60* 2 1/4 3 5/8 13 1/4 15
481/8 .19 1/8 21 26 22 163/8
22 1/4
10

Motor Speed
Correct heating and cooling motor speeds MUST be used for proper operation. Refer to the Blower Speed/Static Operation Tabl
below for correct cooling speed and for minimum allowable heating speed. ·
BLOWER SPEED I STATIC OPERATION TABLE
UNIT
A*PC48A1
MOTOR
SPEED
HIGH
RESISTANCE HEAT
STATIC PRESSURE (IN. WC) ACROSS
HEAT ELEMENT@ MAX. CFM
*20 kW @. 0.60"
15 kW@ 0.45"
60 Hz OPERATION .
CFM @ EXTERNAL DUCT STATIC (IN. WC)
.4 .5
1680 1640 1590
1520
.6
1430
r-------~------~----~--------~----r-------~--------~--------4-----~--~~--~
A*PC4881
MEDIUM
*20 kW @ 0.50" 15 kW@ 0.40"
LOW
*20 kW@ 0.40" 15 kW@ 0.40"
*Specifications applicable to upflow and hor-izontal applications
Air flow shown at the following conditions:
1440 1410 1380
1240
. 1~20 1190 .·
• No heat elements in air handler . . .
• Decrease
CFM 1% for 5 kW, 7.5 kW, or 10 kW heat kits. Decrease CFM 2% for 15 kW or 20 kW heat kits
• 50 Hertz- 220 volts. Decrease CFM 6% for 208 volt operation
• Standard air handler filter.Dry coil airflow shown
11
1340 1250
1. 150
1100

ELECTRI.C HEATER KIT
This unit is not equipped withan electric heater kit. A
factory approved, field installed UL listed heater package is
available from your equipment supplier. Heaters that are
not factory approved could cause damage which would not
be covered under the equipment warranty.
Installation
Only EEC series electri~ heat assemblies may be instal.led into
the air handler. Consult installing contractor for the correct
electric
heat assembly to be installed in each model of air
handler.
For
ease of installation, it is recommended that the electric
heat
kit be installed before the furnace plenum is installed. .
A WARNING A ·
BEFORE PERFORMING ANY WO.RK ON THIS EQUIPMENT,
POWER SUPPLY MUST
BE TURNED.OFF AT THE HOUSEHOLD
SERVICE BOX TO AVOID TfiE POSSIBILITY OF SHOCK,
INJURY, DAMAGE TO EQUIPMENT, OR DEATH.
1. Remove the upper access door from the air handler.
2. Remove and discard the field wiring compartment box by
removing
the screws that attach it to the right side of the
air handler.
Remove air
handler field
wiring box~
and discard 0 0
' . 0
~
Removetwo .
· oe. .... screws
0 9. <:::: 1'
3. The black and yellow high voltage transformer leads should
be connected to theterminal block or breaker of tbe.heat kit.
4. From the electrical compartment, remove the cover plate
from the element housing.
12
5. Cut the wire tie holdrng the heater plug and unroll the heater
plug harness
so that it will hang out of the electrical box.
6. ·Carefully slide
the heat assembly into the element opening. Be
sure the heater kit or elements do not rub or scrapeagainst the
metal e~ges or existing components in the electrical box. Guide
the element support rods into the matching holes in the blower
boot .
7. Make sure
the ·assembly is . botto~~-d put agai~ . ~ t the element
housing. Install the .screws provided through the assembly and
.
into the element housing. ·
8. Connect the heater plugs to the heater receptacles.
9. Slide_ heater element in and secure with three screws. Attach
· wires according to w· iring diagram on p~ge · 9.
Guide the element support rods into · ·
the matching holes in the blower boot
- . c,
r
Heater
receptacle
. !

HEATING SPECIFICATIONS
ELECTRIC HEAT ASSEMBLY NOMENCLATURE
· EE ·C 15 B 1 •A
T T T . T T T
ELECTRIC HEAT DESIGN k-WAT B=BREAKER 1 = 1 PHASE REVISION
ASSEMBLY SERIES SERIES 230
VOLTS N= NO BREAKER
HEATING TEMPERATURE RISE
Formula:
Temp. Rise of =
3160 = CONSTANT
. 3160xkW
CFM
.
kW = kW RATING OF UNIT
CFM = AIR FLOW AT SPECIFIED CONDITIONS
Based .on 230-volt operation. For voltage other than 230,
multiply temperature rise by.capacity correction factor. Refer
to CFM tables to . determine Cfm at total external static
pressure in system.
w TEMPERATURE R~SE °F
CFM
TOTALkW
3 5
10
500 19 32
600 16
26
700 ' .
800
40
900 35
1000
32
1100
29
1200
26
1300
1400
1500
1600
•.
1700
1800 . '.
1900
2000
..
.
'
.2100
. 13 .
. \..}
. ~ . HEATING CORRECTION FACTOR .
.15
68
59
53 :
47
43
40
36
34
..
32
30
28
26
·25
1-
z 260 t'
::) .250 . 1-+-'--4----+-'--+/----;-+i
~ 240 1-+---lf-----t-.....,.r-t-1
~ 230- 1+---t-/--+-v~/-+--t-1
< 220 H--+-v--r--+--+---t-1
t-: .
-210 H-___,.,&.t----+--+-+1
0> /
200 Ef::::::f:=::±:==±::::i:j
>
~ 
Q.
Q.
::)
en
.7 ~8 .9 1.0 1.1
. CAPACITY CORRECTION
FACTOR
For correction ·· of unit output~
multiply the correction factor
times the kW rating at 230 volts.
For
~orrection of temperature
rise,
multiply . the correction
factor times the rise ·calculated
for the kW at 230 volts.
20
.70 .
..
63
57
53
49
45
42
39
37
35
33 . ,
32
30

AIR HANDLING UNIT SERIES NOM~NCLATURE .
· .. ·· JRBo l J-~~~§]§1~ t[~~GJ§J~~~~ ~ ~
. .. · L:
.Order No. (2 cha~:acters) .
01, 02, ...
. -
Product Serie (f .character) / .
. A,B
\
Power Supply (2.characters)'
.-1: Single phase, 3; Three phases
Control Moqe (l character) .
· w: Wire ,·R: Remote ·
Filter }'ype (1 character).
N: Without filter
1: WashableBefore Fan ,
2: Low Speed Before Fan
3: High Speed Before Fan
.. 4: Bag Before F~
5: Hepa AfterFart 6: Bag After Fan ·
Fresh AirSupply (1 character) . . .
Y:Yes ,- N: No · ,. ··
SEER (2 characters)
<·
10,12,13;14,. ~ .
Pipe Connection Side·(1 chanrcter) ·
R: Right, L:· Left ~ · N: Not Important
.Electrical. Heater Power (2 characters)
(Kw)
NO: Without Electrical Heate~
Skin: Type (1 character)
S: Single , D:-Double
Refrigerant(1 _. character)
1: 134A., 2: R22', 3: R407C , 4: R410A
Heatihg.T)'pe (2. charact~;r)
..
WH -: W~ter Heating , EH: Electrical Heater;
Sll :Steam Heating, NO :NoHea:ting I.
Coqling Type (2 character)
. .. .
CW : Cooling Water , DX: Cooling DX ,
CH: Cooling & Heatllig , NO: No Cooling
.Cooling CapacitY (2_characters)
' ..
lOOOBtulh
. -
Position (2'charaCters)
• .
V: Vertical , H: Honzontal , B: Both
Manufacturer (2 chara<;ters)
·-
J .
TF: TRUST Fedders , TM: TRUST·Midea
TG: TRUST Gree ·,TC: TRUST Chunhin , ...
Product (4 characters)..
,-
RBOl: Residential Air Conditio~ingSystems, Blower .
Operating Systems, Air Handling Units
CB01: Commercial .Air Conditioning Systems, Blower
.
Operatin~ Systems,. Air·Haridllng ~nits . · .
14

TRUST AIR-CONDITIONING EQUIPMENT CO.
Shiraz office: 8 th floor, Alvand Blog., Dostan St.,
Moaliabad Ave., SHIRAZ, IRAN., Post code: 71877-14446
Tel.: [phone]
Fax.: [phone]
Tehran office: No. 19- koohe nour St.- Motahhari St.-
TEHRAN, IRAN., Post code: 15876-73111
Tel.: [phone]
Fax.: [phone]
Ahwaz office: No. 309- Kaveh St.- AHWAZ, IRAN., Post code: 61939-
47911
Tel.: [phone]
Fax.: [phone]
E-mail: [e-mail]
Web site: http://www.trustacs.com
Air Conditioning Systems
Cooling & Heating