American Standard TCM030F1 Owner's manual

All phases of this installation must comply with the NATIONAL, STATE & LOCAL CODES. In the absence of local codes, the installa-
tion must conform with National Electric Code -- ANSI/NFPA 70 or “LATEST REVISION.”
Dwg. No. X730377 P02
18-AB33D2-3
INSTALLATION
OPERATION
MAINTENANCE
IMPORTANT — This Document is customer property and is to remain with this unit. Please return to service information pack upon completion of work.
Manufactured Housing
Package Cooling
W/ Optional Electric Heat
2-1/2 - 4 Ton
Model:
TCM030F1
TCM036F1
TCM042F1
TCM048F1
HAZARDOUS VOLTAGE - DISCONNECT POWER BEFORE SERVICING
WARNING:
© 2001 American Standard Inc. All rights reserved
Since the manufacturer has a policy of continuous product and product data improvement,
it reserves the right to change design and specification without notice.

Page 2 Dwg. No. X730377 P02
Read this manual carefully before attempting to install, operate, or
perform maintenance on this unit. Installation and maintenance
should be performed by qualified service technicians only.
NOTE: “Warnings” and “Cautions” appear at appropriate
places in this manual. Your personal safety and the proper
operation of this air conditioning product require that you follow
them carefully. The manufacturer assumes no liability for
installations or servicing performed by unqualified personnel.
INSPECTION
1. Check for damage after the unit is unloaded. Report promptly,
to the carrier, any damage found to the unit. Do not drop the unit.
IMPORTANT: The use of “spreader bars”is required when
hoisting the unit (to prevent damage to sides and top).
2. Check the unit’s nameplate to determine if the unit is correct for
the intended application. The power supply must be adequate
for both the unit and all accessories.
3. Check to be sure the refrigerant charge has been retained during
shipment.
GENERAL INFORMATION
IMPORTANT: RECONNECT ALL GROUNDING DEVICES.
ALL PARTS OF THIS PRODUCT CAPABLE OF CONDUCTING
ELECTRICAL CURRENT ARE GROUNDED. IF GROUNDING
WIRES, SCREWS, STRAPS, CLIPS, NUTS OR WASHERS
USED TO COMPLETE A PATH TO GROUND ARE REMOVED
FOR SERVICE, THEY MUST BE RETURNED TO THEIR ORIGI-
NAL POSITION AND PROPERLY FASTENED.
IMPORTANT: ALL POWER LEGS MAY NOT BE BROKEN BY
CONTACTORS. SEE WIRING DIAGRAM ON UNIT CONTROL
BOX COVER.
BEFORE STARTING THE COMPRESSOR, THE CRANKCASE
HEATER SHOULD BE ENERGIZED FOR EIGHT HOURS.
SAFETY NOTICE. THIS INFORMATION IS INTENDED FOR
USE BY INDIVIDUALS POSSESSING ADEQUATE BACK-
GROUNDS OF ELECTRICAL AND MECHANICAL EXPERI-
ENCE. ANY ATTEMPT TO REPAIR A CENTRAL AIR CONDI-
TIONING PRODUCT MAY RESULT IN PERSONAL INJURY
AND/OR PROPERTY DAMAGE. THE MANUFACTURER OR
SELLER CANNOT BE RESPONSIBLE FOR THE INTERPRE-
TATION OF THIS INFORMATION, NOR CAN IT ASSUME
LIABILITY IN CONNECTION WITH ITS USE.
IMPORTANT: Read this entire manual before beginning instal-
lation procedures.
These units are designed for outdoor installation. For proper instal-
lation, the following recommendations must be considered.
Select a location that will permit unobstructed airflow into the
condenser coil and away from the fan discharge and permit unob-
structed service access into the compressor compartment. Sug-
gested airflow clearances and service clearances are given in
Figure 2.
NOTE: Unit shipped for horizontal installation.
The discharge air from the condenser fans must be unrestricted for
a minimum of 3 feet above the unit.
NOTE: If any internal accessories are to be added to the unit it
should be done at the shop if at all practical.
1. Unit should be positioned so Roof-Run-Off water does not pour
directly on unit.
2. Exhaust vents or other sources of contaminated air should not
be near unit air inlet if outside air is to be introduced as a make-
up air or the economizer ventilation feature is to be used.
3. Check the handling facilities to insure the safety of personnel and
the unit(s).
4. CAUTION MUST BE TAKEN AT ALL TIMES TO AVOID PER-
SONAL INJURIES AND/OR DAMAGE TO EQUIPMENT.
5. The unit must be mounted level for proper drainage of defrost
water through the holes in the base pan.
6. Flexible duct connectors must be of a flame retardant material. All
duct work outside of the structure must be insulated and weath-
erproofed in accordance with local codes.
7. Holes through exterior walls must be sealed in accordance with
local codes.
8. Access and service clearances for the unit must be given careful
consideration when locating the duct entrance openings. Fig-
ures 1 and 2 provide unit dimensions.
9. All fabricated outdoor ducts should be as short as possible.
10. Be sure the hole in the structure for the ducts is large enough to
accommodate the fabricated ducts and the insulation surrounding
them.
CLEARANCES
1. The recommended clearances for single-unit installations are
illustrated in Figures 1 and 2. These minimum requirements are not
only an important consideration when determining unit placement,
but they are also essential to ensure adequate serviceability,
maximum capacity, and peak operating efficiency.
2. Any reduction of the unit clearances indicated in this illustration
may result in condenser coil starvation, or the recirculation of warm
condenser air.
LOCATIONS AND RECOMMENDATIONS

Dwg. No. X730377 P02 Page 3
Check unit nameplate for supply voltage required. Determine if
adequate electrical power is available. Refer to specification sheet.
GROUND LEVEL -- HORIZONTAL UNITS
For ground level installations, the unit should be positioned on a pad
the size of the unit or larger. The unit must be level on the pad. The
pad must not come in contact with the structure. Be sure the outdoor
portion of the supply and return air ducts are as short as possible.
Proceed with the installation as follows:
INSTALLATION
1. Place the unit on the pad and the five (5) rubber isolators
provided.
2. Attach the supply and return air ducts to the unit.
3. Insulate any ductwork outside of the structure with at least 2
inches of insulation and weatherproof. There must be a weath-
erproof seal where the duct enters the structure.
4. Complete the installation according to the instructions in the
following sections of this manual.
DUCTWORK
ATTACHING HORIZONTAL DUCTWORK
TO UNIT
All conditioned air ductwork should be insulated to minimize heating
and cooling duct losses. Use a minimum of two (2) inches of
insulation with a vapor barrier. The outside ductwork must be
weatherproofed between the unit and the building.
When attaching ductwork to a horizontal unit, provide a flexible
watertight connection to prevent noise transmission from the unit to
the ducts. The flexible connection must be indoors and made out
of heavy canvas.
NOTE: Do not draw the canvas taut between the solid ducts.
FILTER INSTALLATION
AIR FILTERS
Filters are to be used with the TCM030-048F heating/cooling units.
The basic unit does not have filters in it. However, a filter frame
accessory is offered that will allow filters to be installed within the
unit.
Otherwise a filter rack must be installed by the installer in the duct
work.
Affix the filter label supplied with the unit adjacent to the filter area.
TABLE 1
* Filters must be installed in the return air system. The above square
footages are based on 300 F.P.M. face velocity. If permanent filters are
used, size per mfg. recommendation with clear resistance of 0.05" WC.
TINU LANIMON
MFC
*RETLIF
EZIS)tFqS(
RETLIF
ECNATSISER
F030MCT000133.350.0
F630MCT002100.450.0
F240MCT004176.450.0
F840MCT006133.550.0
CONDENSATE DRAIN PIPING
3
/ 4 " PVC OR COPPER
TUBING AND FITTINGS
1-1/2" MIN.
A 3/4-inch female NPT condensate drain connection is provided on
the evaporator access panel end of the unit. See Figure 4. Provide
a trap and fill it with water before starting the unit to avoid air from
being drawn through. Follow local codes and standard piping
practices when running the drain line. Pitch the line downward away
from the unit. Avoid long horizontal runs. See Figure 3.
NOTE: Do not use reducing fittings in the drain lines. The conden-
sate drain must be:
●Made of 3/4" pipe size.
●Pitched 1/4" per foot to provide free drainage to convenient drain
system.
●Trapped.
●Must not be connected to closed drain system.
➂

Page 4 Dwg. No. X730377 P02
TCC030-048F OUTLINE - FRONT
DIMENSIONAL DATA
➀
LEDOM
)SBL(THGIEWRENROC TINU
THGIEWTHGIEW THGIEW THGIEWTHGIEW ABCDEFGHJK
1W2W3W4W
F030MCT57462879813
4/1-556361/3-92
21
8/1-71
61/5-21
61/1-0171
61/3-0261/5-52
F630MCT292777990432161/5-218/5-8161/3-42
F240MCT1917972013434161/3-119142
F840MCT3927184010534/3-266361/3-92414/3-2261/5-2161/1-01719142

Dwg. No. X730377 P02 Page 5
DIMENSIONAL DATA
➁
729945
LEDOM ABC D E F
F030MCT
F630MCT
F240MCT
4/1-556361/3-9261/51-218/7-4
TIUDNOC"4/1-1DNA"4/3ROFSTUOKCONK
F840MCT4/3-266361/3-922/1-418/7-4
TCC030-048F OUTLINE - REAR
ECNARAELCECIVRESDEDNEMMOCER
KCAB"0.6
EDISTFEL"0.03
EDISTHGIR"0.42
EDISTNORF"0.03

Page 6 Dwg. No. X730377 P02
After all electrical wiring is complete, set the thermostat system
switch in the OFF position so that the compressor will not run
and then apply power by closing the system main disconnect
switch. This will activate the compressor sump heat. Do not change
the Thermostat System Switch until power has been applied long
enough to evaporate any liquid R-22 in the compressor. It is
recommended that the sump heater be energized for eight (8) hours
prior to starting.
ELECTRICAL WIRING
TABLE 2
THERMOSTAT WIRE SIZE AND MAXIMUM LENGTH
EZISERIW)tF(HGTNELMUMIXAM
8157
61521
41002
THERMOSTAT HEAT ANTICIPATOR
The thermostat heat anticipators should be set to equal the amper-
age draw of the W1 thermostat circuit.
IMPORTANT: Upon completion of wiring check all electrical
connections, including factory wiring within the unit. Make
sure all connections are tight. Replace and secure all electrical box
covers and access doors before leaving the unit or turning on the
power to the unit.
ELECTRICAL CONNECTIONS
Electrical wiring and grounding must be installed in accordance with
local codes or, in the absence of local codes, with the National
Electrical Code ANSI/NFPA 70, Latest Revision.
ELECTRICAL POWER
It is important that proper electrical power be available for the unit.
Voltage variation should remain within the limits stamped on the unit
nameplate.
DISCONNECT SWITCH
Provide an approved weatherproof disconnect either on the side of
the unit or within close proximity and within sight of the unit.
OVER CURRENT PROTECTION
The branch circuit feeding the unit must be protected as shown on
the unit rating plate.
POWER WIRING
The power supply lines must be run in weathertight conduit to the
disconnect and into the bottom of the unit control box. Provide strain
relief for all conduit with suitable connectors.
Provide flexible conduit supports whenever vibration transmission
may cause a noise problem within the building structure.
Be sure all connections are made tight. See Figure 4.
NOTES:
For branch circuit wiring (main power supply to unit
disconnect), wire size for the length of run should be determined
using the circuit ampacity found on the unit nameplate and the
N.E.C.
For more than 3 conductors in a raceway or cable, see the
N.E.C. for derating the ampacity of each conductor.
GROUNDING: THE UNIT MUST BE ELECTRICALLY GROUNDED
IN ACCORDANCE WITH LOCAL CODES OR THE NATIONAL
ELECTRIC CODE.
NOTE: Ground the unit internally as provided. See wiring
diagram for location.
CONTROL WIRING (CLASS II)
Low voltage control wiring should not be run in conduit with power
wiring unless Class 1 wire of proper voltage rating is used. Route
the thermostat cable or equivalent single leads of No. 18 AWG
colored wire from the thermostat subbase terminals through the
rubber gromment on the unit. See Figure 2 for the control entry
location. Make connections as shown on the unit wiring diagram
and in Figure 4.
Do not short thermostat wires since this will damage the control
transformer.
Recommended wire sizes and lengths for installing the unit thermo-
stat are provided in Table 2. The total resistance of these low
voltage wires must not exceed one (1) ohm. Any resistance in
excess of 1 ohm may cause the control to malfunction because of
the excessive voltage drop

Dwg. No. X730377 P02 Page 7
TCM-F FIELD WIRING DIAGRAM
NOTES:
1. FUSED DISCONNECT SIZE, POWER WIRING AND GROUNDING OF EQUIPMENT
MUST COMPLY WITH CODES.
2. BE SURE POWER SUPPLY AGREES WITH EQUIPMENT AND HEATER
NAMEPLATE.
3. LOW VOLTAGE WIRING TO BE 18 AWG MINIMUM CONDUCTOR.
4. SEE HEATER NAMEPLATE FOR CURRENT RATING OF HEATER USED.
5. SEE UNIT AND HEATER DIAGRAM FOR ELECTRICAL CONNECTION DETAILS.
6. JUMPER MUST BE CONNECTED BETWEEN 1 AND 2 FOR FAN TO OPERATE IN
HEATING.
7. SOME THERMOSTATS PROVIDE THE ‘G’SIGNAL IN THE COOLING MODE ONLY.
TO PROVIDE THE ‘G’SIGNAL IN THE HEATING MODE AN ACCESSORY RELAY
IS REQUIRED. SEE FIG. 3 FOR PROPER CONNECTIONS.
8. FOR COOLING ONLY OMIT THE ELECTRIC HEATER, ASSOCIATED POWER
WIRES. AND THE ‘W’SIGNAL THERMOSTAT WIRE.
9. FIG. 4 DEMONSTRATES CONNECTION OF THE TWO STAGE ELECTRIC HEAT
THERMOSTAT ACCESSORY ONLY. FOR FURTHER UNIT CONNECTION DETAILS
REFER TO THE OTHER FIGURES.
10. THE 41A(BR) WIRE IS FIRST STAGE ELECTRIC HEAT. IF THE ELECTRIC
HEATER ACCESSORY HAS TWO HEATING STAGES THE 41C(BR) WIRE IS
SECOND STAGE ELECTRIC HEAT.
From Dwg. 21C757977P01 Rev. 2
➃

Page 8 Dwg. No. X730377 P02
OPERATING PRESSURES
After the unit has operated in the cooling mode for a short period of
time, install pressure gauges on the gauge ports of the discharge
and suction line valves. Check the suction and discharge pressures
and compare them to the normal operating pressures provided in
the unit’s
SERVICE FACTS.
NOTE: Do not use the pressures from the unit’s SERVICE FACTS
to determine the unit refrigerant charge. The correct charge is
shown on the unit nameplate. To charge the system accurately,
weigh in the charge according to the unit nameplate.
VOLTAGE
With the compressor operating, check the line voltage at the unit.
The voltage should be within the range shown on the unit name-
plate. If low voltage is encountered, check the size and length of the
supply line from the main disconnect to the unit. The line may be
undersized for the length of the run.
COOLING SHUT DOWN
Place the system selector in the OFF position or reset thermostat at
a setting above room temperature.
Do not de-energize the main power disconnect except when unit is
to be serviced. Power is required to keep the heat pump compres-
sor warm and boil off refrigerant in the compressor.
STARTING THE UNIT IN THE HEATING MODE
NOTE: See the section on “Sequence of Operation”for a
description of the heating operating sequence.
Check to make sure all grilles and registers are open and all unit
access doors are closed before start-up.
HEATING SHUT-DOWN
Place the system selector switch at OFF or place the heating
selector lever at a setting below room temperature.
START - UP
PRE-START QUICK CHECKLIST
●Is the unit properly located and level with the proper clearance?
●Is the duct work correctly sized, run, taped, insulated, and
weatherproofed with proper unit arrangement. See Ductwork
Installation section.
●Is the condensate line properly sized, run, trapped, and pitched?
●Is the filter of the correct size and number? Is it clean and in
place?
●Is the wiring properly sized and run according to the unit wiring
diagram?
●Are all the wiring connections, including those in the unit, tight?
●Has the unit been properly grounded and fused with the recom-
mended fuse size? See Wiring Data.
●Is the thermostat level, correctly wired, well located, and set for
the proper heat anticipation?
●Have the air conditioning systems been checked at the service
ports for charge and leak tested if necessary?
●Do the condenser fan and indoor blower turn free without rubbing,
and are they tight on the shafts?
●Has the indoor blower speed been determined and the proper
speed been set? See the Unit Wiring Diagram.
●Has all work been done in accordance with applicable local and
national codes?
●Are all covers and access panels in place to prevent air loss and
safety hazards?
STARTING THE UNIT IN THE COOLING MODE
CAUTION: Before starting the system on the cooling cycle, turn the
thermostat switch to OFF and close the unit disconnect switch. This
procedure energizes the compressor crankcase heater, vaporizing
any liquid refrigerant in the crankcase. This is a precaution against
foaming at start-up which could damage the compressor bearings.
Allow the heater to operate a minimum of eight (8) hours.
NOTE: See the section on “Sequence of Operation”for a descrip-
tion of the cooling operating sequence.
To start the unit in the cooling mode, set the thermostat system
switch to COOL and move the thermostat COOL indicator to a
setting below room temperature. The condenser (outdoor) fan
motor compressor and evaporator (indoor) fan motor will operate
automatically.
▲WARNING: DO NOT OPERATE THE UNIT
WITHOUT THE EVAPORATOR FAN ACCESS PANEL IN
PLACE. REINSTALL THE ACCESS PANEL AFTER
PERFORMING ANY MAINTENANCE PROCEDURES ON THE
FAN. OPERATING THE UNIT WITHOUT THE ACCESS
PANEL PROPERLY INSTALLED MAY RESULT IN SEVERE
PERSONAL INJURY OR DEATH.

Dwg. No. X730377 P02 Page 9
SEQUENCE OF OPERATION
GENERAL
Operation of the system cooling (and optional heating) cycles is
controlled by the position of the system switch on the room ther-
mostat. Once the system switch is placed in either the HEAT OR
COOL position, unit operation is automatic. The optional automatic
changeover thermostat, when in the AUTO position, automatically
changes to heat or cool with sufficient room temperature change.
With the unit disconnect closed, voltage is supplied to the unit
control transformer and the crankcase heater (if provided). On
single phase units, the crankcase heater is optionally field installed.
COOLING—MECHANICALCOMPRESSORCYCLE
On a call for mechanical cooling, the indoor fan “G”and the
compressor circuit “Y1”are energized. The indoor fan circuit “G”
starts with power from the control transformer and then energizes
the fan relay coil (F). This closes the fan relay (F) contacts and the
indoor fan motor (IDM) starts.
The compressor circuit starts with power from the control trans-
former through the thermostat switch “Y1”to the compressor
contactor (CC) coil. This closes the (CC) contacts and starts the
compressor (CPR) and the outdoor fan motor (ODM). When the call
for cooling is complete, the compressor contactor (CC), outdoor fan
motor (ODM), and indoor fan relay (F) is de-energized.
HEATING —ELECTRIC HEATERS
On a call for heat, power from the thermostat is received at “W1”,
which energizes the “AH”contactor coil. The “AH”contactor closes
powering the heater, provided all element limits are closed.
If two stages of heat are provided and additional heat is required, the
thermostat’s second stage “W2”circuit is energized powering the
“BH”contactor coil.
NOTE: The indoor thermostat must be configured to provide a “G”
signal to energize the indoor fan relay (F) during the heating mode.
The heater control circuit will not be energized unless the indoor fan
relay (F) is energized.
TROUBLESHOOTING CHART
SYSTEM FAULTS
ELECTRICAL
REFRIGERANT CIRCUIT
P-PRIMARY CAUSES S-SECONDARY CAUSES
Liquid Pressure Too high
Liquid Pressure Too Low
Suction Pressure Too High
Suction Pressure Too Low
Liquid Refrigerant floodback (TXV System)
Liquid Refrig. floodback (Cap. Tube System)
I. D. Coil Frosting
Compressor Runs Inadequate or No Cooling
Compressor & O.D. fan Do Not Start
Compressor Will Not Start But O.D. Fan Runs
O.D. Fan Won't Start
Compressor Hums But Will Not Start
Compressor Cycles on IOL
I.D. Blower Won't Start

Page 10 Dwg. No. X730377 P02
MAINTENANCE
ROUTINE MAINTENANCE BY OWNER
You can do some of the periodic maintenance functions for your
TCM-F unit yourself; this includes replacing the disposable or
cleaning the permanent air filters, cleaning the unit cabinet, clearing
the condenser coil, and conducting a general unit inspection on a
regular basis.
Be sure to inspect them at least once each month when the
system is in constant operation. (In new homes, check the filters
every week for the first four (4) weeks.)
If you have disposable-type filters, replace them with new filters of
the same type and size. Do not attempt to clean disposable
filters.
Permanent-type filters can be cleaned by washing them with a mild
detergent and water. Make sure that the filters are thoroughly dry
before reinstalling them in the unit (or duct system).
NOTE: It may be necessary to replace permanent filters annually
if washing fails to clean the filter or if the filter shows signs of
deterioration. Be sure to use the same type and size as was
originally installed.
CONDENSER COIL
Unfiltered air circulates through the unit’s condenser coil and can
cause the coil’s surface to become clogged with dust, dirt, etc. To
clean the coil, vertically (i.e., with the fins) stroke the coil surface
with a soft-bristled brush.
Be sure to keep all vegetation away from the condenser coil area.
MAINTENANCE PERFORMED BY
SERVICEMAN -- COOLING SEASON
To keep your unit operating safely and efficiently, the manufacturer
recommends that a qualified serviceman check the entire system at
least once each year and any other time that you feel one is needed.
Your serviceman should examine these areas of your TCY-F unit:
●filters (for cleaning or replacement)
●motors and drive system components
●gaskets (for possible replacement)
●safety controls (for mechanical cleaning)
●electrical components and wiring (for possible replacement and
connection tightness)
●condensate drain (for cleaning)
●unit duct connections (to see that they are physically sound and
sealed to the unit casing)
●unit mounting support (for structural integrity)
●the unit (for obvious unit deterioration)
MAINTENANCE PERFORMED BY
SERVICEMAN -- HEATING SEASON
Complete the unit inspections and service routines described below
at the beginning of each heating season.
●Visually inspect the unit to ensure that the airflow required for
condenser coil is not obstructed from the unit.
●Inspect the control panel wiring to verify that all electrical connec-
tions are tight and that the wire insulation is intact.
The following warning complies with State of California law, Proposition 65.
WARNING: This product contains
fiberglass wool insulation! Fiberglass dust and ceramic
fibers are believed by the State of California to cause
cancer through inhalation. Glasswool fibers may also
cause respiratory, skin, or eye irritation.
PRECAUTIONARY MEASURES
● Avoid breathing fiberglass dust.
● Use a NIOSH approved dust/mist respirator.
● Avoid contact with the skin or eyes. Wear long-
sleeved, loose-fitting clothing, gloves, and eye
protection.
● Wash clothes separately from other clothing: rinse
washer thoroughly.
● Operations such as sawing, blowing, tear-out, and
spraying may generate fiber concentrations requiring
additional respiratory protection. Use the appropriate
NIOSH approved respirator in these situations.
FIRST AID MEASURES
Eye Contact - Flush eyes with water to remove dust.
If symptoms persist, seek medical
attention.
Skin Contact - Wash affected areas gently with soap
and warm water after handling.
A150988P01
The following warning complies with State of California law, Proposition 65.
▲ WARNING: This product contains
fiberglass wool insulation! Fiberglass dust and ceramic
fibers are believed by the State of California to cause
cancer through inhalation. Glasswool fibers may also
cause respiratory, skin, or eye irritation.