Trane 4TCC4024A1000A Assembly instructions

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Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air-conditioning
equipment can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person
could result in death or serious injury. When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that
are attached to the equipment.
June 2020 1188--EEBB3300DD11--11GG--EENN
Single Packaged Cooling/Electric Heat
14 SEER Convertible, 2 — 5 Ton
4TCC4024A1000A
4TCC4030A1000A
4TCC4036A1000A
4TCC4042A1000A
4TCC4048A1000A
4TCC4060A1000A
NNoottee:: “Graphics in this document are for representation only. Actual
model may differ in appearance.”
Installer’s Guide

©2020 18-EB30D1-1G-EN
SAFETY SECTION
II mmppoorrttaanntt— This document contains a wiring
diagram, a parts list, and service information. This is
customer property and is to remain with this unit.
Please return to service information pack upon
completion of work.
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II mmppoorrttaanntt:: Wear appropriate gloves, arm sleeve
protectors and eye protection when
servicing or maintaining this equipment.
II mmppoorrttaanntt:: Air filters and media wheels or plates shall
meet the test requirements in UL 900.

18-EB30D1-1G-EN 3
Introduction . . . ............................. 4
Step 2 — Determine Unit Clearances . . . . . . . 5
Step 3 — Review Location and
Recommendation Information. . . . . . . . . . . . . 11
Step 4 — Unit Installation. . . . . . . . . . . . . . . . . . 12
Step 5 — Unit Startup . . . ..................21
Sequence of Operation . . ..................22
Maintenance . . .......................... 23
Important Product Information . . . . . . . . 24
Table of Contents

418-EB30D1-1G-EN
Introduction
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. This unit is listed by
Underwriters Laboratory.
Packaged units are designed for outdoor mounting
with a vertical condenser discharge. They can be
located either at ground level or on a roof in
accordance with local codes. Each unit contains an
operating charge of refrigerant as shipped.
Extreme mounting kits are available for slab
(BAYEXMK003A), utility curb (BAYEXMK002B) and
perimeter curb (BAYEXMK001A) mountings.
This guide is organized as follows:
• Step 1 — Inspect Shipment
• Step 2 — Determine Unit Clearances
• Step 3 — Review Location & Recommendation
Information
• Step 4 — Unit Installation
• Step 5 — Unit Startup
• Sequence of Operation
• Maintenance
SStteepp11——IInnssppeeccttSShhiippmmeenntt
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.
II mmppoorrttaanntt:: To prevent damage to the sides and top of
the unit when hoisting, use “spreader
bars”.
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. Remove the Compressor
access panel to access the 1/4" flare pressure taps.
4. If this unit is being installed on a curb, verify that
the correct curb is provided with the unit.
• 4TCC4024–036 use model BAYCURB050A,
4TCC4042–060 use model BAYCURB051A
5. If the unit is being hoisted, accessory kit
BAYLIFT002A is recommended. It includes a kit of
four (4) lifting lugs and instructions.
NNoottee:: If practical, install any internal accessories to the
unit at the shop.
NNoottee:: The packaged units have been evaluated in
accordance with the Code of Federal Regulations,
Chapter XX, Part 3280 or the equivalent.
“SUITABLE FOR MOBILE HOME USE.”

18-EB30D1-1G-EN 5
Step 2 — Determine Unit Clearances
Figure 1. 2 — 3 TON MODELS
Note:The view labeled Bottom Side
represents the base as viewed looking
up from underneath the unit.

618-EB30D1-1G-EN
Figure 2. 2 — 3 TON MODELS
Model
Height MM/IN APPROX. CORNER WEIGHT
KG / LBS SHIPPING
WIGHT
KG / LBS
TOTAL
UNIT
WEIGHT
KG / LBS
CENTER OF GRAVITY
MM/IN.
A W1 W2 W3 W4 B C
4TCC4024 898.53 [35 - 3/8]
58.3
[129] 36.8 [81] 26.1
[58]
41.0
[90]
196.1
(432)
162.4
(358) 479.8 [18.9] 527.8 [20.8]
4TCC4030
61.3
[135] 38.7 [85] 27.5
[61]
43.1
[95]
204.8
(451)
171.1
(377) 406.5 [16.0] 594.1 [23.4]
4TCC4036
61.7
[136] 38.9 [86] 27.7
[61]
43.7
[96]
205.7
(453)
172.0
(379) 414.3 [16.3] 697.6 [27.5]
4WCC4024
52.9
[117] 33.3 [73] 24.1
[53]
38.3
[84]
182.3
(402)
148.6
(328)
430 [16.9]
565.3 [22.3]
4WCC4030
55.3
[122] 50.3 [110]
16.6
[37]
39.2
[86]
195.0
(430)
161.3
(355) 413.5 [16.3] 581 [22.9]
4WCC4036
59.6
[131] 37.3 [82
]
26.6
[59]
41.7
[92]
199.0
(439)
165.3
(364)
430 [17.0]
535 [21.1]
949.33 [37-3/8]
898.53 [35-3/8]
949.33 [37-3/8]
SStteepp22——DDeetteerrmmiinneeUUnniittCClleeaarraanncceess

18-EB30D1-1G-EN 7
Figure 3. 2 — 3 TON MODELS
SStteepp22——DDeetteerrmmiinneeUUnniittCClleeaarraanncceess

818-EB30D1-1G-EN
Figure 4. 3.5 — 5 TON MODELS
Note:The view labeled Bottom Side
represents the base as viewed looking
up from underneath the unit.
SStteepp22——DDeetteerrmmiinneeUUnniittCClleeaarraanncceess

18-EB30D1-1G-EN 9
Figure 5. 3.5 — 5 TON MODELS
Model
Height MM/IN
APPROX. CORNER WEIGHT
KG / LBS SHIPPING
WIGHT
KG / LBS
TOTAL
UNIT
WEIGHT
KG / LBS
CENTER OF GRAVITY
MM/IN
A W1 W2 W3 W4 B C
4TCC4042 898.53 [35-3/8] 71.8
[158] 47.2 [104] 35.2
[78]
53.6
[118]
254.5
(561)
207.3
(457) 470.0 [18.5] 731.0 [28.8]
4TCC4048
72.0
[159] 45.0 [99] 33.8
[75]
54.4
[120]
252.6
(557)
205.4
(453) 433.0 [17.0] 743.3 [29.3]
4TCC4060
78.0
[172] 46.3 [102] 34.9 [77]
59.0
[130]
265.8
(586)
218.6
(482) 414.0 [16.3] 635.0 [25.0]
4WCC4042
64.4
[142] 47.6 [105] 39.5
[87]
49.9
[110]
248.6
(547.9)
201.4
(444) 449.6 [17.7]
641.8 [25.3]
4WCC4048
1050.93 [41-3/8]
68.9
[152] 40.8 [90]
30.8
[68]
52.2
[115]
240.0
(529)
192.8
(425) 414.0 [16.3] 635.0 [25.0
]
4WCC4060
79.4
[175] 47.2 [104] 35.8
[79]
59.9
[132]
269.5
(594)
222.3
(490)
414.0 [16.3]
635.0 [25.0]
1000.13 [39-3/8]
SStteepp22——DDeetteerrmmiinneeUUnniittCClleeaarraanncceess

10 18-EB30D1-1G-EN
Figure 6. 3.5 — 5 TON MODELS
SStteepp22——DDeetteerrmmiinneeUUnniittCClleeaarraanncceess

18-EB30D1-1G-EN 11
Step 3 — Review Location and Recommendation
Information
HHoorriizzoonnttaall AAiirrfflloowwUUnniittss
1. Location of the unit must allow service clearance
around it to ensure adequate serviceability,
maximum capacity, and peak operating efficiency.
2. These units are designed for outdoor installation.
They may be installed directly on a slab, wood
flooring, or on Class A, B, or C roof covering
material. The discharge air from the condenser fans
must be unrestricted for a minimum of 3 feet above
the unit.
3. Check the handling facilities to ensure the safety of
personnel and the unit(s).
4. The unit must be mounted level for proper drainage
of water through the drain holes in the base pan.
5. The unit should not be exposed to direct roof water
runoff.
6. Flexible duct connectors must be of a flame
retardant material. All duct work outside of the
structure must be insulated and weatherproofed in
accordance with local codes.
7. Holes through exterior walls or roof must be sealed
in accordance with local codes.
8. All fabricated outdoor ducts should be as short as
possible.
CClleeaarraanncceess
1. The recommended clearances for single-unit
installations are illustrated in Figures 1 to 6.
2. Any reduction of the unit clearances indicated in
these figures may result in condenser coil
starvation or the recirculation of warm condenser
air. Actual clearances, which appear to be
inadequate should be reviewed with a local
engineer.
3. See the unit’s nameplate for the absolute minimum
clearance between the unit and any combustible
surfaces.
DDoowwnnAAiirrfflloowwUUnniittss
1. Location of the unit must allow service clearance
around it to ensure adequate serviceability,
maximum capacity, and peak operating efficiency.
2. Refer to the Installation section for instruction on
converting the supply and return airflow covers to
down airflow.
3. The field assembled Roof Mounting Curb
(BAYCURB050A or BAYCURB051A) or a field
fabricated curb should be in place before the unit is
hoisted to the roof top.
The Roof Mounting Curb (frame) must be installed
on a flat, level section of the roof (maximum of 1/4"
per foot pitch) and provide a level mounting surface
for the unit. Also, be sure to provide sufficient
height above the roof to prevent water from
entering the unit.
4. Be sure the mounting curb spans structural
members (trusses) of the roof, thereby providing
sufficient support for the weight of the unit, the
curb, the duct(s), and any factory or field installed
accessories.
5. The unit must be mounted level for proper drainage
of water through the drain holes in the base pan.
6. Be sure the hole in the structure for the ducts is
large enough to accommodate the fabricated ducts
and the insulation surrounding them. Flexible duct
connectors must be of a flame retardant material.
All duct work outside of the structure must be
insulated and weatherproofed in accordance with
local codes.
7. Holes through exterior walls or roof must be sealed
in accordance with local codes.
8. These units are design certified for outdoor
installation. They may be installed directly on a
slab, wood flooring, or on Class A, B, or C roof
covering material. The discharge air from the
condenser fans must be unrestricted for a minimum
of 3 feet above the unit.
9. Check the handling facilities to ensure the safety of
personnel and the unit(s).
CClleeaarraanncceess
1. The recommended clearances for single-unit
installations are illustrated in Figures 1 to 6.
2. Any reduction of the unit clearances indicated in
these figures may result in condenser coil
starvation or the recirculation of warm condenser
air. Actual clearances, which appear to be
inadequate should be reviewed with a local
engineer.
3. See the unit’s nameplate for the absolute minimum
clearance between the unit and any combustible
surfaces.

12 18-EB30D1-1G-EN
Step 4 — Unit Installation
NNoottee:: The factory ships this unit for horizontal
installation.
TTooIInnssttaallll tthheeuunniittaattggrroouunnddlleevveell::
1. Place the unit on a pad the size of the unit or larger.
The unit must be mounted level for proper drainage
of water through the holes in the base pan. To
attach the unit securely to the slab, use extreme
mounting kit, BAYEXMK003A.
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.
2. Location of the unit must allow service clearance
around it. Clearance of the unit must be given
careful consideration. See Figures 1 to 6.
NNoottee:: Any reduction of the unit clearances indicated
in these illustrations may result in condenser
coil starvation or the recirculation of warm
condenser air. Actual clearances, which
appear to be inadequate should be reviewed
with a local engineer.
II mmppoorrttaanntt:: A minimum 0" clearance to combustible
material shall be maintained on air
outlet duct.
3. Attach the supply and return air ducts to the unit as
explained in the ductwork Installation section.
4. Flexible duct connectors must be of a flame
retardant material. Insulate any ductwork outside of
the structure with at least two (2) inches of
insulation and weatherproof. There must be a
weatherproof seal where the duct enters the
structure.
5. Do not expose the unit to direct roof water runoff.
6. Seal all holes through exterior walls in accordance
with local codes.
7. Continue with the following installation sections to
complete the installation: Ductwork, Filter and
Electrical Wiring.
RRooooffttooppIInnssttaallllaattiioonn——CCuurrbbMMoouunnttiin
ngg
CCoonnvveerrttHHoorriizzoonnttaall AAiirrfflloowwttooDDoowwnnAAiirrffllooww
The factory ships the unit for horizontal airflow.
Perform this procedure to convert it to down airflow:
1. Remove the three (3) sheet metal screws securing
the supply air cover and the four (4) sheet metal
screws securing the return air cover from the base
of the unit. Remove the covers from the base.
2. Place the covers over the horizontal supply and
return openings (painted side out). Align the screw
holes, and secure using the same screws removed
in step 1.
II nnssttaallll FFuullll PPeerriimmeetteerrRRooooffMMoouunnttiinnggCCuurrbb
1. Verify that the roof mounting curb is correct for the
unit. There are two curbs depending on the unit
cabinet sizes:
• 4TCC4024–036 use model BAYCURB050A,
4TCC4042–060 use model BAYCURB051A
2. Assemble and install the curb following the
instructions in the Installer's Guide included with
the appropriate curb.
Figure 7. Typical Ground Level Application
NNoottee:: Use the extreme mounting kit, BAYEXMK003AA, to secure the unit to the slab.
SIDING
RETURN
AIR DUCT
SUPPLY
AIR DUCT
EXTERIOR
WALL INSULATE
WEATHERPROOF
OR RAIN SHIELD FLEXIBLE DUCT
CONNECTORS
OUTDOOR
AIR DISCHARGE
SUPPORT PAD
FOUNDATION
3/4” VIBRATION ISOLATORS, USE
7 ISOLATORS

18-EB30D1-1G-EN 13
Figure 8. Converting Horizontal to Down Airflow
LLiiffttiinnggaannddRRiiggggiinngg
II mmppoorrttaanntt:: Do not lift the unit without test lifting for
balance and rigging. Do not lift the unit in
windy conditions or above personnel. Do
not lift the unit by attaching clevis, hooks,
pins, or bolts to the unit casing, casing
hardware, corner lugs, angles, tabs, or
flanges. Failure to observe these warnings
may result in equipment damage.
1. Before preparing the unit for lifting, check the unit
dimension drawings for center of gravity for lifting
safety (Figures 1 to 6). Because of placement of
internal components, the unit’s weight may be
unevenly distributed. Approximate unit weights are
also provided in the unit drawings
NNoottee:: Unit rigging and hoisting requires accessory kit
BAYLIFT002A. It includes a kit of four (4) lifting
lugs.
2. Insert the four lifting lugs in the openings provided
in the drip lip on each end of the unit. A tap or jerk
to the lug will overcome the interference that arises
due to the dimple on the lug.
3. When hoisting the unit, be sure that a proper
method of rigging is used. Use slings and spreader
bars for protection during lifting. Always test-lift the
unit to determine the exact unit balance and
stability before hoisting it to the installation
location.
4. When the curb and air ducts have been properly
installed, the unit is ready to be hoisted to the roof
and set in position.
II mmppoorrttaanntt:: To prevent damage to the sides and top of
the unit when hoisting use “spreader
bars”.
II mmppoorrttaanntt:: The unit must be lowered into position. The
P.V.C. rubber tape on the curb flange
permits the unit to be repositioned if
required without destroying the P.V.C.
rubber seals affixed to the mounting curb.
PPllaacciinnggtthheeUUnniittoonntthheeMMoouunnttiinnggCCuur
rbb
1. The unit is designed with a perimeter drip lip that is
lower than the unit base pan.
2. Position the unit drip lip down over and in contact
with the outside corner of the curb.. Continue to
lower the unit on top of the curb, with the unit drip
lip astraddle, and in contact with, both the end and
side rail of the curb. The unit should now rest on
top of the curb. Use the extreme mounting kit,
BAYEXMK001A, to add additional hold down
strength to the mounting.
NNoottee:: The ductwork is installed as part of the curb
installation. Do not attach ductwork to the unit
and lower the unit with ductwork onto the curb.
SStteepp44——UUnniittIInnssttaallllaattiioonn

14 18-EB30D1-1G-EN
Table 1. Vibration Isolators/Snow Feet Locations
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VXSSRUW LQ WKH JHQHUDO DUHDV
VKRZQ /RFDWH  WKLFN
YLEUDWLRQ LVRODWRUV RQ WKH
ERWWRP RI WKH EDVHSDQ DV
LOOXVWUDWHG E\ EODFN GRWV IRU
JURXQG OHYHO SDG DSSOLFDWLRQV
0RGLI\ YLEUDWLRQ LVRODWRU
ORFDWLRQ DV QHFHVVDU\ IRU IUDPH
DQG UDLO DSSOLFDWLRQV
Small Cabinet
****4024 - 4036
Medium Cabinet
****4042 - 4060
RRooooffttooppIInnssttaallllaattiioonn——FFrraammeeMMoouunnttiinngg
For rooftop applications using field fabricated frame
and ducts use the following procedure:
1. Locate and secure the frame to the roof by bolting
or welding. Frame must provide adequate center
support via a cross member centrally located
channel rail. See Table 5, p. 16. Vibration isolators
should be installed as indicated in Table 1, p. 14,
adjust as necessary for your frame. The isolators
must be placed on base pan, not drip lip. Add
flashing as required. Flashing must conform to local
building codes.
2. Prepare the hole in the roof in advance of installing
the unit.
3. Secure the horizontal or down airflow ducts to the
roof. Refer to the previous Convert from Horizontal
Airflow to Down Airflow section if conversion is
needed.
4. All fabricated outdoor ducts should be as short as
possible.
5. Place the unit on the frame.
6. The unit must be mounted level for proper drainage
of water through the holes in the base pan.
7. Secure the unit to the frame.
8. Insulate any ductwork outside of the structure with
at least two (2) inches of insulation and then
weatherproof. There must be a weatherproof seal
where the duct enters the structure.
9. The unit should not be exposed to direct roof water
runoff.
10. Flexible duct connectors must be of a flame
retardant material. All duct work outside of the
structure must be insulated and weatherproofed in
accordance with local codes.
11. Access and service clearances for the unit must be
given careful consideration when locating the duct
entrance openings. Figures 1 to 6 provide unit
dimensions.
12. Continue with the following installation sections to
complete the installation: Ductwork, Filter, and
Electrical Wiring.
RRooooffttooppIInnssttaallllaattiioonn——FFrraammeeMMoouunnttiinngg
For roof top applications using field fabricated ducts
and sleeper rails rather than a curb or frame, use the
following procedure:
1. Locate and secure the sleeper rails to the roof by
bolting (three (3) rails required). One on each end to
support the edges of the unit and one across the
center of the unit. The center rail must run inside
both drip lips. Vibration isolators should be
installed, adjust as necessary for your sleeper rails.
The isolators must be placed on base pan, not drip
lip. Add flashing as required. Flashing must
conform to local building codes.
2. Prepare the hole in the roof in advance of installing
the unit.
3. Secure the horizontal or down airflow ducts to the
roof. Refer to the previous Convert from Horizontal
Airflow to Down Airflow section if conversion is
needed.
4. All fabricated outdoor ducts should be as short as
possible.
5. Place the unit on the rails.
6. The unit must be mounted level for proper drainage
of water through the holes in the base pan.
7. Secure the unit to the rails.
8. Insulate any ductwork outside of the structure with
at least two (2) inches of insulation and then
weatherproof. There must be a weatherproof seal
where the duct enters the structure.
9. No exposure to direct roof water runoff.
10. Flexible duct connectors must be of a flame
retardant material. All duct work outside of the
structure must be insulated and weatherproofed in
accordance with local codes.
11. Access and service clearances for the unit must be
given careful consideration when locating the duct
entrance openings. Figures 1 to 6 provide unit
dimensions.
12. Continue with the following installation sections:
Ductwork, Filter and Electrical Wiring.
SStteepp44——UUnniittIInnssttaallllaattiioonn

18-EB30D1-1G-EN 15
Table 2. Lifting and Rigging
Base of unit
rest on top of
curb rails
Drip lip on
perimeter of
unit
Spreader Bars
Gasket Seal
Drip Lip
Dimple
BAYLIFT002A
Lifting Lugs
Table 3. Curb Dimensions
7KLV GUDZLQJ ZDV SUHSDUHG E\ WKH PDQXIDFWXUHU LQ RUGHU WR SURYLGH GHWDLO UHJDUGLQJ MRE OD\RXW RQO\ 7KLV GUDZLQJ LV QRW LQWHQGHG WR EH XVHG DV D
EDVLV WR FRQVWUXFW EXLOG RU PRGLI\ WKH LWHP GHSLFWHG LQ WKH GUDZLQJ 7KH PDQXIDFWXUHU LV QRW UHVSRQVLEOH IRU WKH XQDXWKRUL]HG XVH RI WKLV
GUDZLQJ DQG H[SUHVVO\ GLVFODLPV DQ\ OLDELOLW\ IRU GDPDJHV UHVXOWLQJ IURP VXFK XQDXWKRUL]HG XVH
SStteepp44——UUnniittIInnssttaallllaattiioonn

16 18-EB30D1-1G-EN
Table 4. Typical Rooftop Horizontal Airflow Application with Frame
Supply Air
Return Air
Roof Flashing
Channel Iron Center
Support (Center Support
required on all frame
applications).
Angle Iron Frame
Table 5. Typical Rooftop Down Airflow Application with Frame
Return Air
Roof Flashing
Channel Iron Center Support
(center support required on all
frame applications). Angle Iron Frame
Roof
Flashing
Supply
Air
SStteepp44——UUnniittIInnssttaallllaattiioonn

18-EB30D1-1G-EN 17
DDuuccttwwoorrkkIInnssttaallllaattiioonn
AAttttaacchhiinnggDDoowwnnfflloowwDDuuccttwwoorrkkttooRRooooffCCuurrbb
Supply and return air flanges are provided on the roof
curb for easy duct installation. All ductwork must be
run and attached to the curb before the unit is set into
place.
AAttttaacchhiinnggDDoowwnnfflloowwDDuuccttwwoorrkkttooRRooooffFFrraammee
Follow these guidelines for ductwork construction:
Connections to the unit should be made with three (3)
inch canvas connectors to minimize noise and vibration
transmission.
Elbows with turning vanes or splitters are
recommended to minimize air noise and resistance.
The first elbow in the ductwork leaving the unit should
be no closer than two (2) feet from the unit, to minimize
noise and resistance.
To prevent leaking, do not attach the ductwork to the
bottom of the unit base. Refer to the bottom example in
the figure below.
Figure 9. Attaching Down Airflow Ductwork
FIELD DUCT
UNIT DUCT
FLANGE
UNIT BASE
AIR PROOF
THIS SEAM
FIELD DUCT
UNIT DUCT
FLANGE UNIT BASE
AIR PROOF
THIS SEAM
FIELD
DUCT
UNIT DUCT FLANGE
UNIT BASE
AIR PROOF
THIS SEAM
FIELD DUCT
UNIT DUCT
FLANGE
UNIT BASE
NOT RECOMMENDED
WATERPROOF SEAM
WITH BUTYL OR
SILICONE
AAttttaacchhiinnggHHoorriizzoonnttaall DDuuccttwwoorrkkttooUUnniitt
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 mmuusstt be indoors and made out of heavy
canvas.
NNoottee:: Do not draw the canvas taut between the solid
ducts.
Figure 10. Attaching Horizontal Airflow Ductwork
FIELD DUCT
UNIT EXTERIOR
WEATHERPROOF
THIS SEAM
FIELD DUCT
UNIT EXTERIOR
WEATHERPROOF
THIS SEAM
CCoonnddeennssaatteeDDrraaiinnPPiippiinngg
A 3/4-inch female NPT condensate drain connection is
provided on the evaporator access panel end of the
unit. 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
11, p. 17.
NNoottee:: Do not use reducing fittings in the drain lines.
The condensate drain must be:
• Made of 3/4” pipe size
• Pitched 1/4” per foot to provide free drainage to
convenient drain system
• Trapped
• Must be connected to a closed drain system unless
the trap is properly vented
Figure 11. Typical Condensate Drain Piping
3/4" PVC OR COPPER
TUBING AND FITTINGS
1-1/2" MIN.
1-1/2" MIN.
AAiirrFFiilltteerrIInnssttaallllaattiioonn
The packaged unit requires an air filter. The unit does
not come with a factory installed filter rack in it,
however, two filter frame accessories are offered that
will allow the installation of a filter within the unit,
BAYFLTR101 & BAYFLTR201. Otherwise a field
supplied filter rack must be installed by the installer in
the return duct work. Refer to table for field supplied
filter racks.
SStteepp44——UUnniittIInnssttaallllaattiioonn

18 18-EB30D1-1G-EN
Table 6. Filter Sizes (field supplied filter rack)
81,7 120,1$/
&)0
),/7(5 D 6,=(
6T )W
),/7(5
5(6,67$1&(
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a&&$   
a&&$   
a&&$   
a&&$   
a&&$   
a&&$   
D I)LOWHUV PXVW EH LQVWDOOHG LQ WKH UHWXUQ DLU V\VWHP 7KH DERYH VTXDUH
IRRWDJHV DUH EDVHG RQ  )30 IDFH YHORFLW\ ,I SHUPDQHQW ILOWHUV
DUH XVHG VL]H SHU PIJ 5HFRPPHQGDWLRQ ZLWK FOHDU UHVLVWDQFH RI
´:&
II mmppoorrttaanntt:: Air filters and media wheels or plates shall
meet the test requirements in UL 900
EElleeccttrriiccaall WWiirriinngg
NNoottee:: This unit is factory wired for 230V. See wiring
diagram for 208V conversion.
EElleeccttrriiccaall CCoonnnneeccttiioonnss
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.
EElleeccttrriiccaall PPoowweerr
It is important that proper electrical power be available
for the unit. Voltage variation should remain within the
limits stamped on the unit nameplate.
DDiissccoonnnneeccttSSwwiittcchh
Provide an approved weatherproof disconnect within
close proximity and wwiitthhiinnssiigghhttoofftthheeuunniitt..If
disconnect must be mounted to the cabinet, the
location shown in Table 9, p. 18 should be the only one
considered.
OOvveerrCCuurrrreennttPPrrootteeccttiioonn
The branch circuit feeding the unit must be protected
as shown on the unit's rating plate.
PPoowweerrWWiirriinngg
The power supply lines must be run in weather-tight
conduit to the disconnect and into the side 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.
1. Remove the Control/Heat access panel. Pass the
power wires through the Power Entry hole in the
end of the unit. See Table 7, p. 18.
2. Connect the high voltage wires to the appropriate
contactor terminals. Single phase units use a two
(2) pole contactor and three phase units use three
(3) pole contactor. Connect the ground to the
ground lug on the chassis. See Table 9, p. 18.
Ensure all connections are tight.
Table 7. Power Wiring
Run power supply lines through weather-tight
conduit and secure to unit with strain relief.
Table 8. Power Connections
Unit Ground
Lug
Contacto
r
Table 9. Mounted Disconnect Location
SStteepp44——UUnniittIInnssttaallllaattiioonn

18-EB30D1-1G-EN 19
Table 10. Field Wiring Diagram
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RI HTXLSPHQW PXVW FRPSO\
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 %H VXUH SRZHU VXSSO\ DJUHHV
ZLWK HTXLSPHQW DQG KHDWHU
QDPHSODWH
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$:* PLQLPXP FRQGXFWRU
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GLDJUDP IRU HOHFWULFDO
FRQQHFWLRQ GHWDLOV
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EHWZHHQ  DQG  IRU IDQ WR
RSHUDWH LQ KHDWLQJ
 6RPH WKHUPRVWDWV SURYLGH
WKH µ*¶ VLJQDO LQ WKH FRROLQJ
PRGH RQO\ 7R SURYLGH WKH µ*¶
VLJQDO LQ WKH KHDWLQJ PRGH
DQ DFFHVVRU\ UHOD\ LV
UHTXLUHG 6HH ILJ  IRU
SURSHU FRQQHFWLRQV
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HOHFWULF KHDWHU DVVRFLDWHG
SRZHU ZLUHV DQG WKH µ:¶
VLJQDO WKHUPRVWDW ZLUH
 )LJ  GHPRQVWUDWHV
FRQQHFWLRQ RI WKH WZR VWDJH
HOHFWULF KHDW WKHUPRVWDW
DFFHVVRU\ RQO\ )RU IXUWKHU
XQLW FRQQHFWLRQ GHWDLOV UHIHU
WR WKH RWKHU ILJXUHV
 7KH $ %5 ZLUH LV ILUVW
VWDJH HOHFWULF KHDW ,I WKH
HOHFWULF KHDWHU DFFHVVRU\ KDV
WZR KHDWLQJ VWDJHV WKH &
%5 ZLUH LV VHFRQG VWDJH
HOHFWULF KHDW
B
G
Y
W1
W2
R
COMMON
FAN
COMPRESSOR
HEAT FIRST STAGE
HEAT SECOND STAGE
24V
(GR)
(WH)
(WH)
B
G
Y
W1
W2
R
B
G
Y
W1
W2
R
3 PH
POWER
UNIT
NOTE 1,8
3 PH
POWER
HEATER
1 PH
POWER
1 PH
POWER
FIELD PROVIDED
JUMPER
NOTE 6
TO ECONOMIZER
FACTORY PROVIDED
FIELD INSTALLED WIRES
FIELD
INSTALLED
JUMPERS
FIELD
INSTALLED
JUMPERS
FIELD
INSTALLED
JUMPERS
756977i2
FIELD PROVIDED
FIELD CONNECTED
WIRED
UNIT HEATER AREA
UNIT CONTROL
BOX
ELECTRIC
HEATER
CONTROL
BOX
HEATER
FUSES
UNIT
FUSES
GROUND
WIRE
UNIT LOW
VOLTAGE AREA
UNIT LOW
VOLTAGE AREA
SINGLE POWER
ENTRY
UNIT LOW
VOLTAGE AREA
3 PH
POWER
1 PH
POWER
BAY24X042
TYPICAL THERMOSTAT
TYPICAL THERMOSTAT
TYPICAL 2-STAGE
THERMOSTAT
UNIT LOW
VOLTAGE AREA NOTE 10
ELECTRIC
HEATER
CONTROL
BOX
UNIT CONTROL BOX UNIT HEATER AREA
TYPICAL THERMOSTAT
TO COMPR.
CONTACTOR
SPE
ACCESSORY
KIT
GROUND
WIRE
POLARIZED
PLUG
W1
W2
(WH)
(WH)
SEE SPEK INSTALLER'S GUIDE
FOR ALL OTHER EXAMPLES
CCoonnttrrooll WWiirriinngg((CCllaassssIIII))
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
grommet on the unit. See Figures 1–6 for the control
entry (24V Entry) location. Make connections as shown
on Table 10, p. 19
Do not short thermostat wires since this will damage
the control transformer.
Refer to the table below for recommended wire sizes
and lengths for installing the unit thermostat. 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.
SStteepp44——UUnniittIInnssttaallllaattiioonn

20 18-EB30D1-1G-EN
Table 11. Thermostat Wire Size and Maximum
Length
:LUH 6L]H 0D[LPXP /HQJWK )W
 
 
 
II mmppoorrttaanntt:: Upon completion of wiring, check all
electrical connections, including factory
wiring within the unit, and make sure all
connections are tight. Replace and secure
all electrical box covers and access panels
before leaving the unit or turning on the
power to the unit.
SStteepp44——UUnniittIInnssttaallllaattiioonn