Trane AAM8A0A24V21CA, AAM8A0C36V31CA, TAM8A0A24V21CA, AAM8A0C48V41CA, TAM8A0C36V31CA Field Reference Data

HAZARDOUS VOLTAGE - DISCONNECT POWER BEFORE SERVICING

WARNING:

HyperionFieldReferenceDataTAM8

▲

WARNING

!

▲

WARNING

!

▲

WARNING

!

Air Handler - Convertible

Models: Series 8 Air Handlers 2-5 Ton

*AM8A0A24V21CA, *AM8A0B30V21CA
*AM8A0C36V31CA, *AM8A0C42V31CA
*AM8A0C48V41CA, *AM8A0C60V51CA

* May be "A" or "T"

For use with BAYEV or BAYW series heaters ONLY

IMPORTANT --- This document contains a wiring diagram and service information. This is customer property and is to remain with this unit.
Please return to service information pack upon completion of work.

SAFETY HAZARD! This information is intended for use

by individuals possessing adequate backgrounds of electrical and
mechanical experience. Any attempt to repair a central air condition­ing product may result in personal injury and/or property damage.
The manufacture or seller cannot be responsible for the interpreta­tion of this information, nor can it assume any liability in connection
with its use.

LIVE ELECTRICAL COMPONENTS! During instal-

lation, testing, servicing, and troubleshooting of this product, it may
be necessary to work with live electrical components. Failure to fol­low all electrical safety precautions when exposed to live electrical
components could result in death or serious injury.

NOTE: This unit as shipped is ONLY compatible with
Trane and American Standard communicating thermostats
and outdoor units. (24VAC thermostats cannot be used)
With the addition of a BAYCC24VK01 accessory, this unit
can be compatible with a 24VAC single or multistage heat
pump or air conditioner.

PRESSURIZED REFRIGERANT! SYSTEM CONTAINS

OIL AND REFRIGERANT UNDER HIGH PRESSURE. RECOVER
REFRIGERANT TO RELIEVE PRESSURE BEFORE OPENING THE
SYSTEM.

DO NOT USE NON-APPROVED REFRIGERANTS OR REFRIGERANT
SUBSTITUTES OR REFRIGERANT ADDITIVES.

Note: This unit is certified to UL 1995.

The interior cabinet wall meets the following:

- UL94-5VA Flame Class Listed

- UL723 Steiner Tunnel Listed for 25/50 Flame/
Smoke

- UL746C Listed for Exposure to Ultraviolet Light,
Water Exposure and Immersion

Table of Contents

Product Specifications. .................................................................................................... 2

Wiring Diagram. ............................................................................................................... 3

Sequence of Operation. ................................................................................................... 4

Control Layout - Refrigerant Dip Switch .......................................................................... 6

Airflow Performance. ........................................................................................................ 7

Heater Attribute Data. .................................................................................................... 13

Control Layout - LEDs. ...................................................................................................16

Alert Codes. ................................................................................................................... 22

EEV Test Procedures. .................................................................................................... 23

EVC Thermal Resistance and Voltage Table. ................................................................ 24

AFC Supply Air Temperature Sensor Table. ...................................................................25

Display Assembly Menus. .............................................................................................. 26

Troubleshooting. ............................................................................................................ 32

NOTICE: Since the manufacturer has a policy of continuous product and product data improvement, it reserves the right to change design and specifications without notice.

© 2011 Trane

MODEL
RATED VOLTS/PH/HZ.
RATINGS 1
INDOOR COIL — Type

Rows — F.P.I.
Face Area (sq. ft.)
Tube Size (in.)
Refrigerant Control
Drain Conn. Size (in.) 2

DUCT CONNECTIONS
INDOOR FAN — Type

Diameter-Width (In.)
No. Used
Drive - No. Speeds
CFM vs. in. w.g.
No. Motors — H.P.
Motor Speed RPM
Volts/Ph/Hz
F.L. Amps

FILTER

Filter Furnished?
Type Recommended
No.-Size-Thickness

REFRIGERANT

Ref. Line Connections
Coupling or Conn. Size — in. Gas
Coupling or Conn. Size — in. Liq.

DIMENSIONS

Crated (In.)
Uncrated

WEIGHT

Shipping (Lbs.) / Net (Lbs.)

*AM8A0A24V21CA

200-230/1/60

See O.D. Specifications

Plate Fin

3/4 NPT

See Outline Drawing

Centrifugal

Direct - Variable

See Fan Performance Table

Variable ECM

208-230/1/60

Throwaway

1 - 16 X 20 - 1 in.

R-410A

H x W x D

51 x 20 x 24.5

49.9 x 17.5 x 21.8

126/116

PRODUCT SPECIFICATIONS

*AM8A0B30V21CA

See O.D. Specifications

3 - 14

3.67
3/8

EEV

See Outline Drawing

11 X 8

1

See Fan Performance Table

1 - 1/2

3.0

No

Brazed

3/4
3/8

200-230/1/60

Plate Fin

3 - 14

5.04
3/8

EEV

3/4 NPT

Centrifugal

11 X 10

1

Direct - Variable

1 - 1/2

Variable ECM

208-230/1/60

3.0

No

Throwaway

1 - 20 X 20 - 1 in.

R-410A

Brazed

3/4
3/8

H x W x D

56.8 x 23.5 x 24.5

55.7 x 21.3 x 21.8

150/138

*AM8A0C36V31CA

200-230/1/60

See O.D. Specifications

Plate Fin

3 - 14

5.50
3/8

EEV

3/4 NPT

See Outline Drawing

Centrifugal

11 X 10

1

Direct - Variable

See Fan Performance Table

1 - 1/2

Variable ECM

208-230/1/60

3.0

No

Throwaway

1 - 22 X 20 - 1 in.

R-410A

Brazed

7/8
3/8

H x W x D

58 x 25.5 x 24.5

56.9 x 23.5 x 21.8

157/146

MODEL
RATED VOLTS/PH/HZ.
RATINGS 1
INDOOR COIL — Type

Rows — F.P.I.
Face Area (sq. ft.)
Tube Size (in.)
Refrigerant Control
Drain Conn. Size (in.) 2

DUCT CONNECTIONS
INDOOR FAN — Type

Diameter-Width (In.)
No. Used
Drive - No. Speeds
CFM vs. in. w.g.
No. Motors — H.P.
Motor Speed RPM
Volts/Ph/Hz
F.L. Amps

FILTER

Filter Furnished?
Type Recommended
No.-Size-Thickness

REFRIGERANT

Ref. Line Connections
Coupling or Conn. Size — in. Gas
Coupling or Conn. Size — in. Liq.

DIMENSIONS

Crated (In.)
Uncrated

WEIGHT

Shipping (Lbs.) / Net (Lbs.)

* May be "A" or "T"

1 These Air Handlers are AHRI certified with various Split System Air Conditioners and Heat Pumps (AHRI STANDARD 210/240).
2 3/4" Male Plastic Pipe (Ref.: ASTM 1785-76)

*AM8A0C42V31CA

200-230/1/60

See O.D. Specifications

Plate Fin

4 - 14

5.04
3/8

EEV

3/4 NPT

See Outline Drawing

Centrifugal

11 X 10

1

Direct - Variable

See Fan Performance Table

1 - 1/2

Variable ECM

208-230/1/60

3.0

No

Throwaway

1 - 22 X 20 - 1 in.

R-410A

Brazed

7/8
3/8

H x W x D

58 x 25.5 x 24.5

56.9 x 23.5 x 21.8

162/150

*AM8A0C48V41CA

200-230/1/60

See O.D. Specifications

Plate Fin

4 - 14

5.96
3/8

EEV

3/4 NPT

See Outline Drawing

Centrifugal

11 X 10

1

Direct - Variable

See Fan Performance Table

1 - 3/4
Variable ECM
208-230/1/60

4.2

No

Throwaway

1 - 22 X 20 - 1 in.

R-410A

Brazed

7/8
3/8

H x W x D

62.8 x 25.5 x 24.5

61.7 x 23.5 x 21.8

174/162

PRODUCT SPECIFICATIONS

*AM8A0C60V51CA

200-230/1/60

See O.D. Specifications

Plate Fin

4 - 14

5.96
3/8

EEV

3/4 NPT

See Outline Drawing

Centrifugal

11 X 10

1

Direct - Variable

See Fan Performance Table

1 - 1

Variable ECM

208-230/1/60

5.5

No

Throwaway

1 - 22 X 20 - 1 in.

R-410A

Brazed

7/8
3/8

H x W x D

62.8 x 25.5 x 24.5

61.7 x 23.5 x 21.8

175/163

TAM82

WIRING DIAGRAM FOR *AM8 AIR HANDLERS

5. ET WIRING MAY BE BROWN OR ORANGE.

TAM83

SEQUENCE OF OPERATION FOR *AM8

AM8 Sequence of Operation

Abbreviations

• AFC = Airow Control

• EVC = Expansion Valve Control

• EEV = Electronic Expansion Valve

• EHC = Electric Heat Control

• HHC= Hydronic Heat Control

This unit as shipped is ONLY compatible with Trane

and American Standard communicating thermo­stats and OD units. (24VAC thermostats cannot be
used)

With the addition of a BAYCC24VK01 accessory, this

unit can be compatible with a 24VAC single or
multistage heat pump or air conditioner.

The installing and servicing technician should have an

understanding of the sequence of operation to be
able to properly setup and diagnose functions of
the air handler.

See unit, auxiliary heat, and field wiring diagrams

for additional information.

Continuous Fan

IMPORTANT: If the indoor air exceeds 60% relative

humidity or simply feels uncomfortably humid, it is
recommended that the indoor fan only be used in
the AUTO mode.

1. When a fan request is received from the ther­mostat, the AFC sends a command to the serial
communicating blower motor to run. Airflow can be
adjusted through the thermostat

2. Humidity Control – When enabled in the thermo­stat, this feature will disable any blower off delays
and disable continuous fan mode when the humid­ity is above the dehumidification setpoint. This will
help prevent coil condensation from being evapo­rated back into the air stream.

Cooling mode

1. When a request for 1st stage cooling is received,
the AFC sends a command to the serial commu­nicating blower motor to run at 1st stage cooling
airflow. (Delay profiles from the thermostat may
change blower motor timing and actual airflow
demand)

TAM84

2. The EVC will receive input from the two tempera­ture sensors and start to control 1st stage super­heat.

3. When a request for 2nd stage cooling is received,
the AFC sends a command to the serial com­municating blower motor to run at 100 % cooling
airflow.

4. The EVC will now control superheat for 2nd stage.

5. When a request for cooling is removed, the AFC will
turn off the blower motor after any user selected
fan-off delays have expired.

NOTE: Delay profiles from the thermostat may change

blower motor timing and actual airflow demand

Heatpump (compressor only)

1. When a request for 1st stage heat is received, the
AFC sends a command to the serial communi­cating blower motor to run at 1st stage heating
airflow.

2. Humidifier contacts close

3. The EVC will drive the EEV to the heating position
and refrigerant will flow in the reverse cycle.

4. When a request for 2nd stage mechanical heat is
received, the AFC sends a command to the serial
communicating blower motor to run at 100 % heat­ing airflow.

5. When a request for heatpump is removed, the hu­midifier contacts open and the AFC will turn off the
blower motor after any user selected fan-off delays
have expired.

NOTE: Delay profiles from the thermostat may change

blower motor timing and actual airflow demand

Electric Heat

1. When a request for electric heat is received, the
AFC communicates to the EHC how much de­mand for auxiliary heat is being requested

2. The EHC determines the number of elements that
will be used for this request and sends a message
to the AFC for proper airflow. (The EHC deter­mines the amount of heat available per stage by
either factory programming or by the kw jumper
position)

3. The AFC sends a command to the serial communi­cating blower motor to run proper airflow and close
the blower interlock relay on the EHC.

4. Humidifier contacts close.

5. As demand from the thermostat increases, the EHC
will communicate to the AFC the required airflow
when energizing additional relays.

NOTE: The EHC has “lead-lag or rotating” logic built in

that energizes the electric heat relays based upon
cycle counts. To verify operation of all heating
elements, switch thermostat to Emergency Heat
and raise the setpoint of the thermostat at least 5
degrees above the actual room temperature.

Hydronic Heat

1. When the request for hydronic heat is received, the
AFC communicates to the HHC how much auxil­iary heat is being requested

2. The HHC will close the K1 relay contacts that en­able the boiler or circulating pump to start.

3. The HHC sends a signal to the AFC when the inlet
water temperature reaches 100 degrees for a
maximum of 60 seconds, and then determines the
amount of airflow needed for the heat demand.

4. The AFC sends a command to the serial communi­cating blower motor to run at the requested CFM.

5. Humidifier contacts close.

6. As demand from the thermostat increases, the
HHC will communicate to the AFC matching air­flow requirements.

Defrost

1. The OD unit will initiate defrost and send a mes­sage to the AFC.

2. The AFC will communicate to the EVC that the OD
is in defrost and the EVC will start to control the
correct superheat.

3. Electric or hydronic heat will be energized to help
temper the air. (Auxiliary heat options for defrost
can be adjusted through the Display Assembly
Configuration Menu)

Optional Condensate Switch

1. An optional OEM Condensate Switch can be in­stalled within the unit. This switch is only available
through the National Distribution Center or Global
Parts.

2. OEM Condensate Switch contacts are Normally
Open and will close when water level inside the
unit rises. A closed switch will de-energize the OD
unit.

3. The OEM Condensate Switch is only operational
during the cooling mode and is not operational
during heating or defrost modes.

Note: Standard aftermarket condensate switches

(Normally Closed) can be wired in series with the
“External Switch” contacts on the AFC.

Important: The switch action must be selected in the

Configuration Menu section of the Display Assem­bly to either “Disable Cool” or “Disable All”.

Freeze Protection

1. The EVC control has the ability to sense when the
indoor coil is beginning to ice. If this event should
occur, the AFC will send a message to de-energize
the OD unit.

2. The indoor blower motor will continue running to aid
in defrosting the coil.

3. After 5 minutes, the OD will be turned back on.
(*CONT900 and the 1st release of the *ZONE950
will disable the indoor blower motor and OD unit for
30 minutes)

Unit Test Mode

Unit Test Mode will exit if any demand is given to the

unit.

To enter Unit Test Mode:

1. Set System Switch on comfort control to Off

2. Scroll to the Control Menu on the Display Assembly

3. Scroll down to the Unit Test selection and push the
“Enter” key

Sequence of Unit Test Mode (OD unit is not ener-

gized during the Unit Test Mode)

1. EVC drives the EEV motor to the 1st stage position
for 5 seconds

2. EVC drives the EEV motor to the 2nd stage position
for 5 seconds

3. AFC energizes the blower at 50% and then contin­ues to ramp until it reaches 100% cooling airflow.

4. Humidifier contacts close when the blower starts

5. EHC energizes the circuit relay(s) for 5 seconds
each in 5 second intervals.

6. All relays de-energize and the blower shuts off five
seconds after the last bank of heat is energized.

7. HHC energizes its K1 relay that interfaces with
the boiler system or circulating pump. The blower
continues to run for 30 seconds and then K1 relay
contacts open and the blower shuts off.

If an error occurs during the Unit Test Mode, the Fault

LED will flash a code and continue the test.

TAM85

Fault Reporting

Control boards in this unit store active and historical

faults. Each control board will report active faults
continuously and will report the last four faults
stored after a power cycle of the unit. See Fault
Table section for list of fault codes

The active and historical faults can also be accessed

through the Alert Menu in the Display Assembly.

Clearing Fault History

Option 1:

a) Scroll to the Alert Menu in the Display Assembly

b) Scroll to the Alert History section.

c) Scroll to the Clear History selection and push the

Enter key. At the “Are You Sure” question, push the
Enter again.

Option 2:

a) Press and hold the Unit Test Button for 10-12 sec-

onds.

b) Release the Unit Test button and “wait” 5 seconds.

c) Cycle 230VAC power to the unit. (the blower panel

can be removed to achieve this)

CLEAR HISTORY? ↕
YES

Unit Test Button

J6

J11

Airflow Control (AFC)

<ENTER>

24 VAC

TEST

J4

13.8 VDC

Control Layout - Refrigerant Dip Switch

Refrigerant Switch SW1

• Set the system refrigerant to either R-410A or R-22
using the Refrigerant Switch located on the Expan­sion Valve Control board (EVC) in the Control Pocket.

• Factory default is R-410A.

• Note: The power must be shut off and then re-applied
in order for the EVC to recognize the change.

TAM86

SW1 Dip

Switch

Electronic Expansion Valve Control (EVC)

291

A

A

A

A

A

A

A

A

A

X

134

329

101

76

400

49

425

EXTERNAL STATIC PRESSURE

22

416

CFM

Watts

Powe r

Airflow

290

HEATING

AIRFLOW

CFM/ton

SETTING

434

152

507

129

542

101

69

550

37

532

CFM

Watts

350

CFM/ton

614

197

658

169

679

136

99

680

62

660

CFM

Watts

430

CFM/ton

650

208

690

180

709

145

710

108

69

690

CFM

Watts

450

CFM/ton

527

172

582

147

608

116

82

613

48

593

CFM

Watts

290

CFM/ton

679

218

716

189

734

153

734

115

75

714

CFM

Watts

350

CFM/ton

849

290

874

254

884

213

881

168

862

122

CFM

Watts

430 †

CFM/ton

889

310

912

273

921

231

917

184

899

136

CFM

Watts

450

CFM/ton

707

229

742

198

758

162

757

122

81

738

CFM

Watts

290

CFM/ton

864

297

888

261

898

220

895

174

876

127

CFM

Watts

350

CFM/ton

418

1066

375

1084

326

1089

272

1083

215

1064

CFM

Watts

430

CFM/ton

453

1116

410

1133

360

1139

304

1133

244

1115

CFM

Watts

450

CFM/ton

859

295

883

259

894

217

890

172

871

125

CFM

Watts

290

CFM/ton

401

1041

358

1059

310

1064

257

1058

202

1040

CFM

Watts

350

CFM/ton

470

1138

478

1220

487

1300

432

1302

368

1291

CFM

Watts

430

CFM/ton

462

1128

468

1208

476

1286

483

1360

422

1355

CFM

Watts

450

CFM/ton

4. Torque mode will reduce airflow when static is above approximately

0.3” water column.

5. All heating modes default to Constant CFM.

6. Cooling airflow values are with wet coil, no filter

BAYEVBC20BK1A

BAYEVCB15LG3A

279 / NA

133 / NA

439 / NA

154 / NA

559 / NA

181 / NA

653 / NA

209 / NA

531 / NA

174 / NA

681 / 383

219 / 145

787 / 561

261 / 183

888 / 689

310 / 225

709 / 473

229 / 162

863 / 680

297 / 221

989 / 821

367 / 280

451 / 354

858 / 674

295 / 219

399 / 307

485 / 408

464 / 464

1120 / 1120

465 / 399

469 / 469

1203 / 1203

339 / NA

102 / NA

514 / NA

131 / NA

612 / 325

155 / 101

694 / 494

181 / 128

588 / 241

149 / 95

720 / 534

190 / 137

818 / 666

228 / 174

913 / 777

274 / 214

745 / 596

199 / 153

890 / 770

262 / 211

1009 / 901

1113 / 961

327 / 270

409 / 345

1132 / 1034

1039 / 877

885 / 764

259 / 209

1058 / 953

1154 / 1046

358 / 297

1205 / 1115

*AM8A0A24 AIRFLOW PERFORMANCE

BAYEVAC10LG3AA BAYEVBC15BK1A

77 / NA

102 / 73

408 / NA

CONSTANT CFM MODE / CONSTANT TORQUE MODE

0.1 0.3 0.5 0.7 0.9 0.1 0.3 0.5 0.7 0.9

EXTERNAL STATIC PRESSURE (Constant CFM / Constant Torque)

Powe r

Airflow

SETTING

AIRFLOW

COOLING

548 / 373

50 / 48

431 / 412

555 / 541

22 / 40

419 / 554

534 / 638

CFM

CFM

Watts

290

350

CFM/ton

123 / 96

636 / 513

70 / 67

88 / 85

639 / 626

37 / 56

52 / 71

617 / 705

CFM

Watts

Watts

400

CFM/ton

CFM/ton

714 / 613

714 / 703

692 / 770

CFM

450

117 / 90

146 / 119

614 / 481

83 / 80

108 / 105

617 / 605

69 / 89

48 / 67

595 / 688

CFM

Watts

Watts

290

CFM/ton

CFM/ton

738 / 643

154 / 127

832 / 751

737 / 727

115 / 112

829 / 821

75 / 96

716 / 792

809 / 877

CFM

CFM

Watts

350

400 †

CFM/ton

190 / 161

924 / 852

231 / 200

147 / 144

920 / 913

185 / 182

103 / 125

900 / 964

136 / 161

CFM

Watts

Watts

450

CFM/ton

CFM/ton

762 / 692

163 / 141

901 / 845

761 / 769

123 / 125

897 / 907

81 / 108

740 / 829

878 / 957

CFM

CFM

Watts

290

350

CFM/ton

220 / 196

281 / 255

1017 / 967

175 / 178

231 / 236

1012 / 1023

127 / 158

178 / 215

993 / 1070

CFM

Watts

Watts

400

CFM/ton

CFM/ton

359 / 330

896 / 840

1139 / 1095

1133 / 1148

1115 / 1193

CFM

450

218 / 194

304 / 312

893 / 902

173 / 176

244 / 290

873 / 953

125 / 156

CFM

Watts

Watts

290

CFM/ton

CFM/ton

310 / 282

1065 / 1018

1059 / 1072

1041 / 1118

CFM

350

415 / 386

1214 / 1175

257 / 264

358 / 368

1210 / 1227

202 / 242

295 / 347

1194 / 1271

CFM

Watts

Watts

400

CFM/ton

CFM/ton

476 / 476

1284 / 1284

483 / 491

1360 / 1373

422 / 476

1355 / 1421

CFM

Watts

450

CFM/ton

SEE AIR HANDLER NAMEPLATE

WITHOUT HEAT PUMP / WITH HP

BAYEVAC10LG1A

BAYEVAC10BK1A

MINIMUM HEATER AIRFLOW CFM - HEATER MATRI

BAYEVAC08LG1A

BAYEVAC08BK1A

BAYEVAC05LG1A

BAYEVAC05BK1A

(TONS)

OUTDOOR

MULTIPLIER

1.5 tons

2 tons †

2.5 tons

3 tons

NOTES:

1. * Models start with "A" or "T"

2. † Factory Setting

3. Status LED will blink once per 100 CFM requested. In torque mode, actual airflow may be lower.

*AM8A0A24V21SAA 638/713 638/900 675/900 600/713 -- -- --

MODEL NO.

AM8A0A24 Minimum Heating Airflow Settings

NOTE: Minimum auxiliary heating airflow is automatically configured by the air

handler model and the auxiliary heater model number. This is not field adjustable.

TAM87

A

A

A

A

A

A

A

A

A

X

301

130

97

350

69

393

44

437

EXTERNAL STATIC PRESSURE

21

485

CFM

Watts

Powe r

Airflow

290

HEATING

AIRFLOW

CFM/ton

SETTING

458

146

489

115

85

517

56

545

29

574

CFM

Watts

350

CFM/ton

614

177

636

143

653

108

75

669

42

683

CFM

Watts

430

CFM/ton

649

186

669

151

685

115

80

698

45

709

CFM

Watts

450

CFM/ton

533

160

560

127

95

582

64

604

35

625

CFM

Watts

290

CFM/ton

678

193

696

157

710

120

84

722

49

731

CFM

Watts

350

CFM/ton

853

248

864

205

869

161

871

116

73

868

CFM

Watts

430 †

CFM/ton

895

263

905

219

908

172

908

126

80

902

CFM

Watts

450

CFM/ton

706

201

723

164

736

126

88

746

52

753

CFM

Watts

290

CFM/ton

869

254

879

210

884

165

884

120

75

881

CFM

Watts

350

CFM/ton

342

1078

290

1087

234

1084

176

1074

119

1057

CFM

Watts

430

CFM/ton

366

1128

314

1139

255

1136

194

1125

133

1104

CFM

Watts

450

CFM/ton

863

252

874

208

879

164

880

118

74

877

CFM

Watts

290

CFM/ton

330

1053

279

1061

224

1058

168

1049

112

1034

CFM

Watts

350

CFM/ton

446

1271

398

1300

337

1309

267

1298

193

1271

CFM

Watts

430

CFM/ton

472

1314

427

1350

369

1368

299

1363

221

1338

CFM

Watts

450

CFM/ton

4. Torque mode will reduce airflow when static is above approximately

0.35” water column.

5. All heating modes default to Constant CFM.

6. Cooling airflow values are with wet coil, no filter

BAYEVBC20BK1A

BAYEVCB15LG3A

279 / NA

130 / NA

449 / NA

146 / NA

554 / NA

164 / NA

647 / NA

186 / NA

528 / NA

159 / NA

676 / NA

193 / NA

788 / NA

97 / NA

338 / NA

484 / NA

115 / NA

582 / NA

132 / NA

151 / 91

557 / NA

669 / 231

157 / 94

127 / NA

696 / 299

226 / NA

803 / 463

186 / 115

704 / NA

895 / 394

264 / 138

907 / 621

219 / 141

723 / 409

201 / NA

869 / 401

254 / 139

164 / 105

881 / 625

211 / 142

307 / 177

1001 / 609

1128 / 784

258 / 180

1010 / 777

1141 / 925

366 / 226

863 / 391

252 / 138

314 / 227

875 / 619

209 / 140

330 / 195

1053 / 681

1196 / 886

279 / 197

1063 / 836

1217 / 1016

403 / 261

471 / 347

1311 / 1086

352 / 261

427 / 345

1350 / 1201

*AM8A0B30 AIRFLOW PERFORMANCE

85 / 60

69 / NA

388 / NA

CONSTANT CFM MODE / CONSTANT TORQUE MODE

0.1 0.3 0.5 0.7 0.9 0.1 0.3 0.5 0.7 0.9

EXTERNAL STATIC PRESSURE (Constant CFM / Constant Torque)

Powe r

Airflow

SETTING

AIRFLOW

COOLING

515 / 270

44 / 42

438 / 406

546 / 523

21 / 30

490 / 587

578 / 672

CFM

CFM

Watts

290

350

CFM/ton

99 / 72

605 / 413

56 / 54

67 / 65

626 / 607

29 / 39

37 / 48

646 / 738

CFM

Watts

Watts

400

CFM/ton

CFM/ton

686 / 520

700 / 683

712 / 803

CFM

450

95 / 69

115 / 86

582 / 380

80 / 77

64 / 62

605 / 585

45 / 59

35 / 46

628 / 721

CFM

Watts

Watts

290

CFM/ton

CFM/ton

121 / 91

712 / 552

812 / 668

84 / 81

724 / 708

818 / 803

49 / 62

734 / 824

819 / 908

CFM

CFM

Watts

350

400 †

CFM/ton

145 / 112

911 / 775

173 / 136

103 / 100

910 / 896

126 / 122

63 / 79

80 / 99

904 / 993

CFM

Watts

Watts

450

CFM/ton

CFM/ton

737 / 617

126 / 102

886 / 778

89 / 91

748 / 760

887 / 899

52 / 71

755 / 870

883 / 996

CFM

CFM

Watts

290

350

CFM/ton

165 / 137

206 / 173

1010 / 908

120 / 123

153 / 156

1004 / 1016

75 / 100

101 / 131

991 / 1107

CFM

Watts

Watts

400

CFM/ton

CFM/ton

256 / 218

881 / 773

1139 / 1041

1126 / 1141

1106 / 1226

CFM

450

164 / 136

194 / 199

882 / 894

119 / 121

74 / 99

133 / 172

879 / 992

CFM

Watts

Watts

290

CFM/ton

CFM/ton

224 / 189

1061 / 960

1052 / 1065

1036 / 1153

CFM

350

291 / 251

1217 / 1126

168 / 172

224 / 231

1202 / 1221

113 / 146

158 / 203

1179 / 1304

CFM

Watts

Watts

400

CFM/ton

CFM/ton

370 / 333

1369 / 1302

300 / 311

1365 / 1391

222 / 282

1338 / 1471

CFM

Watts

450

CFM/ton

BAYEVAC10LG3AA BAYEVBC15BK1A

SEE AIR HANDLER NAMEPLATE

WITHOUT HEAT PUMP / WITH HP

BAYEVAC10LG1A

BAYEVAC10BK1A

MINIMUM HEATER AIRFLOW CFM - HEATER MATRI

BAYEVAC08LG1A

BAYEVAC08BK1A

BAYEVAC05LG1A

BAYEVAC05BK1A

(TONS)

OUTDOOR

MULTIPLIER

1.5 tons

2 tons †

2.5 tons

3 tons

NOTES:

1. * Models start with "A" or "T"

2. † Factory Setting

3. Status LED will blink once per 100 CFM requested. In torque mode, actual airflow may be lower.

*AM8A0B30V21SAA 723/808 723/1020 765/1020 680/808 765/1063 850/1105 --

MODEL NO.

AM8A0B30 Minimum Heating Airflow Settings

NOTE: Minimum auxiliary heating airflow is automatically configured by the air

handler model and the auxiliary heater model number. This is not field adjustable.

TAM88

A

A

A

A

A

A

A

A

A

X

551

153

551

119

87

557

58

574

EXTERNAL STATIC PRESSURE

31

607

CFM

Watts

Powe r

Airflow

290

HEATING

AIRFLOW

CFM/ton

SETTING

695

185

14

695

697

111

77

705

44

721

CFM

Watts

350

CFM/ton

845

277

844

186

843

144

843

102

62

847

CFM

Watts

420

CFM/ton

908

248

906

204

903

159

900

115

72

900

CFM

Watts

450

CFM/ton

723

192

722

154

724

117

81

730

47

744

CFM

Watts

290

CFM/ton

882

239

880

196

878

153

876

110

68

878

CFM

Watts

350

CFM/ton

307

1062

257

1060

205

1052

152

1046

101

1033

CFM

Watts

420

CFM/ton

340

1138

288

1137

232

1128

175

1116

119

1102

CFM

Watts

450

CFM/ton

877

238

875

195

873

151

871

108

67

873

CFM

Watts

290

CFM/ton

307

1062

257

1060

205

1052

152

1043

101

1033

CFM

Watts

350

CFM/ton

405

1270

351

1277

289

1270

224

1253

158

1231

CFM

Watts

420 †

CFM/ton

448

1348

397

1365

334

1365

264

1349

192

1324

CFM

Watts

450

CFM/ton

292

1026

248

1024

197

1017

141

1005

93

1002

CFM

Watts

290

CFM/ton

388

1236

333

1239

272

1230

209

1215

148

1199

CFM

Watts

350

CFM/ton

476

1394

456

1468

395

1484

327

1480

246

1452

CFM

Watts

420

CFM/ton

469

1383

476

1505

451

1573

385

1584

306

1573

CFM

Watts

450

CFM/ton

4. Torque mode will reduce airflow when static is above approximately

0.35” water column.

5. All heating modes default to Constant CFM.

6. Cooling airflow values are with wet coil, no filter

BAYEVBC20BK1A

BAYEVCB15LG3A

556 / NA

153 / NA

741 / NA

553 / NA

119 / NA

740 / 297

195 / NA

805 / 374

213 / 128

156 / 90

803 / 554

172 / 122

725 / 30

909 / 485

245 / 142

906 / 636

201 / 137

723 / 413

191 / 156

935 / 488

254 / 143

153 / 101

931 / 639

209 / 138

282 / 196

1011 / 731

1138 / 823

234 / 189

1008 / 848

1136 / 933

334 / 222

879 / 480

235 / 141

281 / 215

876 / 632

192 / 136

328 / 196

369 / 278

1123 / 731

1213 / 984

275 / 189

313 / 269

1120 / 848

1212 / 1086

441 / 321

293 / 184

1028 / 687

1352 / 1091

386 / 312

244 / 178

1024 / 808

1364 / 1189

422 / 262

471 / 386

1301 / 942

1386 / 1228

369 / 254

422 / 377

1311 / 1046

1410 / 1324

470 / 443

1379 / 1334

477 / 434

1499 / 1429

*AM8A0C36 AIRFLOW PERFORMANCE

86 / 62

118 / 85

556 / 321

739 / 530

802 / 707

81 / 77

744 / 706

803 / 846

47 / 63

759 / 858

812 / 974

CFM

CFM

Watts

370

400

CFM/ton

132 / 115

92 / 103

54 / 85

Watts

CFM/ton

CONSTANT CFM MODE / CONSTANT TORQUE MODE

57 / 58

573 / 573

0.1 0.3 0.5 0.7 0.9 0.1 0.3 0.5 0.7 0.9
610 / 758

CFM

Powe r

290

SETTING

30 / 47

Watts

CFM/ton

EXTERNAL STATIC PRESSURE (Constant CFM / Constant Torque)

Airflow

AIRFLOW

COOLING

115 / 96

902 / 774

156 / 129

723 / 602

79 / 86

899 / 903

112 / 116

729 / 761

69 / 96

45 / 71

746 / 903

900 / 1024

CFM

CFM

Watts

Watts

450

290

CFM/ton

CFM/ton

927 / 776

163 / 130

1001 / 961

923 / 905

117 / 116

944 / 1070

73 / 97

922 /1026

988 / 1175

CFM

CFM

Watts

370

400

CFM/ton

184 / 177

225 / 202

1127 / 1040

134 / 160

168 / 183

1114 / 1143

86 / 137

112 / 159

1100 / 1243

CFM

Watts

Watts

450

CFM/ton

CFM/ton

872 / 771

148 / 128

1112 / 961

871 / 900

105 / 115

1099 / 1070

64 / 96

874 / 1022

1087 / 1175

CFM

CFM

Watts

290

370 †

CFM/ton

220 / 177

253 / 254

1202 / 1185

163 / 160

192 / 233

1188 / 1280

109 / 137

132 / 207

1170 / 1373

CFM

Watts

Watts

400

CFM/ton

CFM/ton

321 / 296

193 / 167

1016 / 925

1360 / 1284

251 / 275

1344 / 1377

1322 / 1465

CFM

450

138 / 150

1009 / 1037

90 / 128

181 / 247

1006 / 1144

CFM

Watts

Watts

290

CFM/ton

CFM/ton

306 / 239

360 / 361

1306 / 1146

1416 / 1416

238 / 219

289 / 338

1404 /1505

1290 / 1244

170 / 193

213 / 310

1266 / 1338

1378 / 1591

CFM

CFM

Watts

Watts

370

400

CFM/ton

CFM/ton

451 / 419

1572 / 1519

385 / 396

1585 / 1607

307 / 367

1575 / 1691

CFM

Watts

450

CFM/ton

BAYEVAC10LG3AA BAYEVBC15BK1A

SEE AIR HANDLER NAMEPLATE

WITHOUT HEAT PUMP / WITH HP

BAYEVAC10LG1A

BAYEVAC10BK1A

MINIMUM HEATER AIRFLOW CFM - HEATER MATRI

BAYEVAC08LG1A

BAYEVAC08BK1A

BAYEVAC05LG1A

BAYEVAC05BK1A

(TONS)

OUTDOOR

MULTIPLIER

2 tons

2.5 tons

3 tons †

3.5 tons
NOTES:

1. * Models start with "A" or "T"

2. † Factory Setting

3. Status LED will blink once per 100 CFM requested. In torque mode, actual airflow may be lower.

*AM8A0C36V31SAA 876/979 876/1236 927/1236 824/979 927/1288 1030/1339 1236/1442

MODEL NO.

AM8A0C36 Minimum Heating Airflow Settings

NOTE: Minimum auxiliary heating airflow is automatically configured by the air

handler model and the auxiliary heater model number. This is not field adjustable.

TAM89

A

A

A

A

A

A

A

A

A

X

734

209

890

738

170

894

740

130

894

90

741

744

51

892

889

EXTERNAL STATIC PRESSURE

259

215

169

123

76

308

1016

160

1019

209

1018

156

1016

103

1006

366

1140

313

1144

256

1142

196

1135

136

1124

885

889

889

887

884

257

214

168

121

75

330

1066

280

1069

227

1067

171

1062

115

1053

403

1212

349

1219

289

1218

225

1209

160

1196

480

1342

430

1366

367

1371

295

1363

220

1347

315

1031

327

1173

214

1033

160

1028

107

1020

417

1236

362

1244

301

1243

236

1234

169

1220

475

1355

458

1411

395

1421

322

1416

244

1440

463

1315

473

1434

474

1545

428

1592

347

1589

383

1174

330

1179

271

1177

209

1169

147

1157

475

1335

458

1411

395

1421

322

1416

244

1400

462

1313

471

1431

474

1545

444

1615

363

1615

452

1297

458

1411

462

1528

453

1629

430

1716

CFM

CFM

Watts

Powe r

Airflow

290

350

HEATING

AIRFLOW

CFM/ton

SETTING

739 / NA

207 / NA

741 / 342

168 / 106

944 / 458

947 / 655

*AM8A0C42 AIRFLOW PERFORMANCE

742 / 591

127 / 102

CONSTANT CFM MODE / CONSTANT TORQUE MODE

0.1 0.3 0.5 0.7 0.9 0.1 0.3 0.5 0.7 0.9

EXTERNAL STATIC PRESSURE (Constant CFM / Constant Torque)

Powe r

Airflow

946 / 823

87 / 94

743 / 764

942 / 956

48 / 77

747 / 905

937 / 1072

CFM

CFM

Watts

CFM

Watts

Watts

400

CFM/ton

CFM/ton

273 / 155

302 / 177

1019 / 586

227 / 155

253 / 178

1022 / 760

179 / 151

201 / 173

1020 / 903

129 / 139

148 / 159

1014 / 1027

80 / 118

95 / 138

1006 / 1136

CFM

Watts

Watts

CFM

CFM

Watts

Watts

450

290

CFM/ton

CFM/ton

357 / 223

889 / 341

1142 / 768

1146 / 911

1143 / 1035

1135 / 1146

1122 / 1247

CFM

254 / 143

303 / 224

892 / 590

209 / 139

245 / 216

891 / 763

163 / 136

185 / 200

889 / 904

116 / 125

70 / 106

125 / 176

885 / 1026

CFM

Watts

Watts

CFM

CFM

Watts

Watts

350

400

CFM/ton

CFM/ton

350 / 217

393 / 256

1128 / 747

1215 / 868

297 / 218

337 / 255

1131 / 893

1221 / 999

240 / 210

276 / 246

1128 / 1019

1218 / 1115

181 / 195

212 / 229

1120 / 1132

1208 / 1220

121 / 171

147 / 204

1108 / 1233

1194 / 1316

CFM

CFM

Watts

Watts

CFM

CFM

Watts

Watts

450

290

CFM/ton

CFM/ton

469 / 334

308 / 182

1034 / 609

1352 / 1061

413 / 331

259 / 183

1037 / 779

1368 / 1175

348 / 320

206 / 178

1034 / 919

1371 / 1279

275 / 300

1361 / 1374

1343 / 1463

CFM

152 / 164

1028 / 1041

99 / 142

200 / 272

1020 / 1149

CFM

Watts

Watts

CFM

CFM

Watts

Watts

350

400 †

CFM/ton

CFM/ton

441 / 303

1304 / 981

1315 / 1110

1314 / 1218

1304 / 1317

1287 / 1408

CFM

480 / 364

1369 / 1124

384 / 301

440 / 361

1415 / 1233

320 / 291

374 / 348

1421 / 1334

250 / 272

300 / 328

1413 / 1427

179 / 245

221 / 299

1395 / 1514

CFM

Watts

Watts

CFM

CFM

Watts

Watts

450

290

CFM/ton

CFM/ton

468 / 477

383 / 249

1174 / 848

1350 / 1326

477 / 472

319 / 248

1181 / 981

1474 / 1425

467 / 458

1576 / 1518

1593 / 1605

1584 / 1687

CFM

259 / 239

1178 / 1098

399 / 435

197 / 222

1169 / 1205

313 / 405

135 / 197

1156 / 1302

CFM

Watts

Watts

CFM

CFM

Watts

Watts

350

400

CFM/ton

CFM/ton

470 / 429

1319 / 1248

1445 / 1350

1496 / 1445

1500 / 1534

1487 / 1618

CFM

463 / 463

1301 / 1301

481 / 425

472 / 472

1423 / 1423

441 / 411

475 / 475

1543 / 1543

369 / 389

443 / 464

1614 / 1646

288 / 359

363 / 433

1616 / 1728

CFM

Watts

Watts

CFM

Watts

4. Torque mode will reduce airflow when static is above approximately

450

CFM/ton

453 / 453

1273 / 1273

460 / 460

1393 / 1393

465 / 465

1514 / 1514

456 / 456

1621 / 1621

432 / 432

1711 / 1711

CFM

Watts

0.35” water column.

5. All heating modes default to Constant CFM.

6. Cooling airflow values are with wet coil, no filter

MINIMUM HEATER AIRFLOW CFM - HEATER MATRI

BAYEVBC20BK1A

BAYEVCB15LG3A

BAYEVAC10LG3AA BAYEVBC15BK1A

SEE AIR HANDLER NAMEPLATE

WITHOUT HEAT PUMP / WITH HP

BAYEVAC10LG1A

BAYEVAC10BK1A

BAYEVAC08LG1A

BAYEVAC08BK1A

COOLING

OUTDOOR

290

SETTING

AIRFLOW

(TONS)

MULTIPLIER

370

CFM/ton

CFM/ton

400

CFM/ton

2.5 tons

450

CFM/ton

290

CFM/ton

370

CFM/ton

400

3 tons

450

CFM/ton

CFM/ton

290

CFM/ton

370 †

CFM/ton

400

450

CFM/ton

3.5 tons †

290

CFM/ton

CFM/ton

370

CFM/ton

400

4 tons

450

CFM/ton

CFM/ton

NOTES:

1. * Models start with "A" or "T"

2. † Factory Setting

3. Status LED will blink once per 100 CFM requested. In torque mode, actual airflow may be lower.

BAYEVAC05LG1A

BAYEVAC05BK1A

*AM8A0C42V31SAA 978/1093 978/1380 1035/1380 920/1093 1035/1438 1150/1495 1380/1610

MODEL NO.

AM8A0C42 Minimum Heating Airflow Settings

NOTE: Minimum auxiliary heating airflow is automatically configured by the air

handler model and the auxiliary heater model number. This is not field adjustable.

TAM810

864

A

A

A

A

230

883

197

893

159

900

EXTERNAL STATIC PRESSURE

Airflow

118

72

893

CFM

Watts

Powe r

290

HEATING

AIRFLOW

CFM/ton

SETTING

295

1049

257

1062

213

1070

164

1073

112

1068

CFM

Watts

350

CFM/ton

359

1196

315

1206

266

1212

212

1212

154

1207

CFM

Watts

400

CFM/ton

436

1344

387

1352

331

1354

270

1352

206

1344

CFM

Watts

450

CFM/ton

281

1014

244

1028

202

1037

154

1040

103

1034

CFM

Watts

290

CFM/ton

371

1220

326

1230

276

1236

221

1235

162

1229

CFM

Watts

350

CFM/ton

465

1394

413

1400

356

1403

293

1400

226

1392

CFM

Watts

400

CFM/ton

577

1567

521

1574

457

1576

386

1572

310

1561

CFM

Watts

450

CFM/ton

341

1157

299

1168

251

1174

198

1176

141

1168

CFM

Watts

290

CFM/ton

465

1394

413

1400

356

1403

293

1400

226

1392

CFM

Watts

350

CFM/ton

595

1591

538

1599

474

1601

402

1597

325

1586

CFM

Watts

400 †

CFM/ton

655

1667

665

1766

620

1800

544

1801

459

1794

CFM

Watts

450

CFM/ton

403

1301

355

1309

310

1311

252

1310

189

1302

CFM

Watts

290

CFM/ton

563

1569

505

1575

439

1575

367

1570

290

1557

CFM

Watts

350

CFM/ton

659

1701

663

1794

594

1801

515

1799

428

1789

CFM

Watts

400

CFM/ton

628

1660

634

1757

643

1863

656

1975

605

2018

CFM

Watts

450

CFM/ton

6. If the air handler is applied in downflow or horizontal configurations, the

airflow should not exceed 2000 CFM. Airflow above 2000 CFM could result in

water blow-off.

7. All heating modes default to Constant CFM.

8. Cooling airflow values are with wet coil, no filter

229 /

871 / 445

886 / 622

195 / 137

*AM8A0C48 AIRFLOW PERFORMANCE

896 / 767

900 / 897

0.1 0.3 0.5 0.7 0.9 0.1 0.3 0.5 0.7 0.9

894 / 1018

CFM

Powe r

290

SETTING

157 / 130

114 / 114

69 / 91

Watts

CFM/ton

CONSTANT CFM MODE / CONSTANT TORQUE MODE

EXTERNAL STATIC PRESSURE (Constant CFM / Constant Torque)

Airflow

AIRFLOW

COOLING

292 / 194

354 / 249

1053 / 738

1199 / 926

252 / 192

309 / 244

1065 / 859

1208 / 1029

208 / 180

259 / 229

1072 / 972

1213 / 1128

158 / 160

203 / 206

1073 / 1078

1212 / 1222

106 / 132

145 / 176

1205 /1314

1067 / 1180

CFM

CFM

Watts

Watts

350

400

CFM/ton

CFM/ton

427 / 313

279 / 182

1018 / 690

1346 / 1098

377 / 305

240 / 181

1031 / 817

1353 / 1190

320 / 289

197 / 170

1038 / 934

1355 / 1280

259 / 264

149 / 150

1352 / 1367

1041 / 1044

98 / 123

193 / 232

1343 / 1451

1034 / 1149

CFM

CFM

Watts

Watts

450

290

CFM/ton

CFM/ton

365 / 259

1224 / 955

1232 / 1056

1236 / 1153

1235 / 1246

1228 / 1336

CFM

350

455 / 336

1395 / 1154

319 / 253

402 / 328

1401 / 1244

268 / 238

343 / 311

1403 / 1331

212 / 215

280 / 286

1399 / 1415

212 253

152 / 185

1389 / 1498

CFM

Watts

Watts

400

CFM/ton

CFM/ton

563 / 432

336 / 242

1160 / 905

1568 / 1351

505 / 422

293 / 237

1575 / 1434

1170 / 1010

439 / 404

244 / 223

1575 / 1514

1175 / 1109

367 / 377

191 / 200

1570 / 1592

1175 / 1205

290 / 343

133 / 170

1558 / 1669

1168 / 1298

CFM

CFM

Watts

Watts

450

290

CFM/ton

CFM/ton

455 / 346

580 / 459

1395 / 1177

1593 / 1401

402 / 338

521 / 450

1401 / 1266

1600 / 1483

343 / 321

455 / 431

1403 / 1352

1601 / 1562

280 / 295

382 / 546

1399 / 1436

1595 / 1639

212 / 262

303 / 370

1389 / 1517

1583 / 1714

CFM

CFM

Watts

Watts

400

350 †

CFM/ton

CFM/ton

660 / 601

1698 / 1625

1793 / 1701

1808 / 1775

1800 / 1848

1790 / 1918

CFM

450

404 / 302

1302 / 1071

663 / 592

355 / 294

1309 / 1165

594 / 573

300 / 278

1312 / 1256

515 / 546

241 / 253

1310 / 1344

429 / 511

177 / 222

1301 / 1429

CFM

Watts

Watts

290

CFM/ton

CFM/ton

563 / 444

660 / 601

1568 / 1373

1698 / 1625

505 / 434

663 / 592

1575 / 1455

1793 / 1701

439 / 415

594 / 573

1575 / 1535

1801 / 1775

367 / 389

515 / 546

1570 / 1613

1800 / 1848

290 / 354

429 / 511

1558 / 1688

1790 / 1918

CFM

CFM

Watts

Watts

350

400

CFM/ton

CFM/ton

631 / 631

1651 / 1651

637 / 637

1749 / 1749

645 / 645

1857 / 1857

656 / 656

1973 / 1973

605 / 605

2018 / 2018

CFM

Watts

450

CFM/ton

SEE AIR HANDLER NAMEPLATE

WITHOUT HEAT PUMP / WITH HP

MINIMUM HEATER AIRFLOW CFM - HEATER MATRIX

BAYEVAC10LG1AA BAYEVAC10LG3AA BAYEVBC15BK1AA BAYEVCB15LG3AA BAYEVBC20BK1AA BAYEVCC25BK1AA

BAYEVAC10BK1A

BAYEVAC08LG1AA

BAYEVAC08BK1A

1063/1188 1063/1500 1125/1500 1000/1188 1125/1563 1250/1625 1500/1750 1625/1813

BAYEVAC05LG1AA

BAYEVAC05BK1A

(TONS)

OUTDOOR

MULTIPLIER

TAM811

3 tons

3.5 tons

4 tons †

4.5 tons**

1. * Models start with "A" or "T"

2. † Factory Setting

3. ** Not an actual OD size

4. Status LED will blink once per 100 CFM requested. In torque mode, actual airflow may be lower.

5. Torque mode will reduce airflow when static is above approximately 0.4” water column.

*AM8A0C48V41SA

MODEL NO.

AM8A0C48 Minimum Heating Airflow Settings

NOTE: Minimum auxiliary heating airflow is automatically configured by the air

handler model and the auxiliary heater model number. This is not field adjustable.

283

A

1045

247

1063

203

1071

151

1065

EXTERNAL STATIC PRESSURE

95

1039

CFM

Watts

Powe r

Airflow

290

HEATING

AIRFLOW

CFM/ton

SETTING

363

1248

321

1263

270

1270

213

1266

150

1247

CFM

Watts

350

CFM/ton

439

1409

392

1421

337

1426

274

1423

206

1407

CFM

Watts

400

CFM/ton

529

1569

476

1578

416

1582

348

1578

274

1564

CFM

Watts

450

CFM/ton

337

1187

297

1203

248

1210

192

1206

131

1185

CFM

Watts

290

CFM/ton

439

1409

392

1421

337

1426

274

1423

206

1407

CFM

Watts

350

CFM/ton

543

1592

490

1601

428

1604

360

1600

285

1587

CFM

Watts

400

CFM/ton

671

1782

611

1788

543

1788

467

1783

385

1770

CFM

Watts

450

CFM/ton

396

1322

352

1336

300

1342

240

1338

174

1321

CFM

Watts

290

CFM/ton

529

1569

476

1578

416

1582

348

1578

274

1564

CFM

Watts

350

CFM/ton

671

1782

611

1788

543

1788

467

1783

385

1770

CFM

Watts

400 †

CFM/ton

856

2011

788

2014

711

2011

626

2003

534

1989

CFM

Watts

450

CFM/ton

463

1454

415

1466

358

1471

294

1467

224

1452

CFM

Watts

290

CFM/ton

636

1734

578

1740

511

1741

437

1736

357

1723

CFM

Watts

350

CFM/ton

833

1985

766

1988

690

1985

606

1978

515

1964

CFM

Watts

400

CFM/ton

2186

1023

2252

1016

934

2252

842

2245

741

2232

CFM

Watts

450

CFM/ton

6. If the air handler is applied in downflow or horizontal configurations, the

airflow should not exceed 2000 CFM. Airflow above 2000 CFM could result in

water blow-off.

7. All heating modes default to Constant CFM.

8. Cooling airflow values are with wet coil, no filter

283 / 165

1046 / 607

1314 / 945

247 / 175

1066 / 799

1329 / 1068

*AM8A0C60 AIRFLOW PERFORMANCE

203 / 168

EXTERNAL STATIC PRESSURE (Constant CFM / Constant Torque)

Powe r

Airflow

AIRFLOW

1075 / 941

151 / 148

1068 / 1056

0.1 0.3 0.5 0.7 0.9 0.1 0.3 0.5 0.7 0.9
94 / 119

1040 / 1151

CFM

Watts

290

CFM/ton

SETTING

1336 / 1174

1332 / 1264

1312 / 1343

CFM

370

CONSTANT CFM MODE / CONSTANT TORQUE MODE

COOLING

392 / 251

440 / 325

1410 / 1154

349 / 250

393 / 319

1423 / 1256

296 / 235

337 / 301

1429 / 1346

236 / 210

274 / 273

1425 / 1426

171 / 178

206 / 238

1408 / 1496

CFM

Watts

Watts

400

CFM/ton

CFM/ton

529 / 407

337 / 233

1189 / 887

1569 / 1343

477 / 398

1580 / 1432

1584 / 1512

1579 / 1585

1565 / 1650

CFM

450

297 / 234

1206 / 1018

416 / 378

248 / 220

1213 / 1128

348 / 348

192 / 196

1208 / 1223

274 / 312

131 / 164

1186 / 1304

CFM

Watts

Watts

290

CFM/ton

CFM/ton

479 / 334

543 / 430

1482 / 1177

1592 / 1399

430 / 327

490 / 420

1495 / 1277

1602 / 1475

372 / 308

429 / 399

1499 / 1365

1606 / 1554

306 / 280

360 / 369

1495 / 1444

1602 / 1625

235 / 245

285 / 332

1480 / 1514

1587 / 1689

CFM

CFM

Watts

Watts

370

400

CFM/ton

CFM/ton

671 / 546

1782 / 1597

1788 / 1675

1789 / 1747

1784 / 1813

1770 / 1873

CFM

450

397 / 292

1323 / 1069

612 / 534

353 / 288

1338 / 1179

543 / 512

300 / 271

1345 / 1274

468 / 481

240 / 245

1340 / 1358

386 / 443

174 / 211

1322 / 1431

CFM

Watts

Watts

290

CFM/ton

CFM/ton

582 / 417

1653 / 1363

1662 / 1451

1665 / 1530

1660 / 1602

1646 / 1667

CFM

370 †

671 / 546

1781 / 1597

527 / 407

612 / 534

1788 / 1675

463 / 386

543 / 512

1789 / 1747

392 / 357

468 / 481

1784 / 1813

315 / 320

386 / 443

1770 / 1873

CFM

Watts

Watts

400

CFM/ton

CFM/ton

855 / 716

2009 / 1842

2013 / 1913

2012 / 1980

2004 / 2042

1989 2099

CFM

450

463 / 356

1455 / 1231

788 / 703

415 / 348

1468 / 1327

712 / 681

358 / 329

1473 / 1413

627 / 650

294 / 301

1469 / 1489

535 / 612

224 / 265

1452 / 1557

CFM

Watts

Watts

290

CFM/ton

CFM/ton

708 / 515

1831 / 1544

1837 / 1624

1837 / 1698

1831 / 1765

1817 / 1826

CFM

370

832 / 695

1983 / 1814

647 / 503

766 / 682

1987 / 1886

576 / 481

690 / 660

1986 / 1953

499 / 451

607 / 629

1978 / 2015

415 / 451

516 / 590

1964 / 2073

CFM

Watts

Watts

400

CFM/ton

CFM/ton

1024 / 941

2185 / 2104

1015 / 930

2252 / 2171

934 / 908

2252 / 2233

842 / 879

2245 / 2292

741 / 842

2231 / 2347

CFM

Watts

450

CFM/ton

SEE AIR HANDLER NAMEPLATE

WITHOUT HEAT PUMP / WITH HP

MINIMUM HEATER AIRFLOW CFM - HEATER MATRIX

BAYEVAC10LG1AA BAYEVAC10LG3AA BAYEVBC15BK1AA BAYEVCB15LG3AA BAYEVBC20BK1AA BAYEVCC25BK1AA

BAYEVAC10BK1AA

BAYEVAC08LG1AA

BAYEVAC08BK1AA

1063/1188 1063/1500 1125/1500 1000/1188 1125/1563 1250/1625 1500/1750 1625/1813

BAYEVAC05LG1AA

BAYEVAC05BK1AA

(TONS)

OUTDOOR

MULTIPLIER

TAM812

3.5 tons

4 tons

4.5 tons **†

5 tons

1. * Models start with "A" or "T"

2. † Factory Setting

3. ** Not an actual OD size

4. Status LED will blink once per 100 CFM requested. In torque mode, actual airflow may be lower.

5. Torque mode will reduce airflow when static is above approximately 0.4" water column.

*AM8A0C60V51SA

MODEL NO.

AM8A0C60 Minimum Heating Airflow Settings

NOTE: Minimum auxiliary heating airflow is automatically configured by the air

handler model and the auxiliary heater model number. This is not field adjustable.

A

A

A

AM8 HEATER ATTRIBUTE DATA

Heater Attribute Data

*AM8A0A24V21SA

240 Volt

Heater Model No.

No Heater 0 - - 3.0** 4 15 - - 3.0** 4 15
BAYEVAC05++1 1 4.80 16400 20.0 29 30 3.60 12300 17.3 25 25
BAYEVAC08++1 1 7.68 26200 32.0 44 45 5.76 19700 27.7 38 40
BAYEVAC10++1 1 9.60 32800 40.0 54 60 7.20 24600 34.6 47 50
BAYEVAC10LG3 1-3 PH 9.60 32800 23.1 32 35 7.20 24600 20.0 28 30

Note: * May be "A" or "T"
Note: ** Motor Amps

Heater Model No.

No Heater 0 - - 3.0** 4 15 - - 3.0** 4 15
BAYEVAC05++1 1 4.80 16400 20.0 29 30 3.60 12300 17.3 25 25
BAYEVAC08++1 1 7.68 26200 32.0 44 45 5.76 19700 27.7 38 40
BAYEVAC10++1 1 9.60 32800 40.0 54 60 7.20 24600 34.6 47 50
BAYEVAC10LG3 1-3 PH 9.60 32800 23.1 32 35 7.20 24600 20.0 28 30
BAYEVBC15LG3 1-3 PH 14.40 42000 34.6 47 50 10.80 36900 30.0 41 45

BAYEVBC15BK1 - Circuit 1 1

BAYEVBC15BK1 - Circuit 2

Note: * May be "A" or "T"
Note: ** Motor Amps

1 MCA and MOP for circuit 1 contains the motor amps

No. of

Circuits

No. of

Circuits

2

Capacity Minimum

kW BTUH kW BTUH

Capacity Heater

kW BTUH kW BTUH

9.60 32800 40.0 54 60 7.20 24600 34.6 47 50

4.80 16400 20.0 25 25 3.60 12300 17.3 22 25

Heater
mps per
Circuit

240 Volt

mps per
Circuit

Circuit

Ampacity

Heater Attribute Data

*AM8A0B30V21SA

Minimum

Circuit

Ampacity

Maximum

Overload

Protection

Maximum

Overload

Protection

Capacity Heater

Capacity

208 Volt

Amps per

Circuit

208 Volt

Heater

Amps per

Circuit

Minimum

Circuit

Ampacity

Minimum

Circuit

Ampacity

Maximum

Overload

Protection

Maximum

Overload

Protection

Heater Attribute Data

*AM8A0C36V31SA

240 Volt 208 Volt

Heater Model No.

No Heater 0 - - 3.0** 4 15 - - 3.0** 4 15
BAYEVAC05++1 1 4.80 16400 20.0 29 30 3.60 12300 17.3 25 25
BAYEVAC08++1 1 7.68 26200 32.0 44 45 5.76 19700 27.7 38 40
BAYEVAC10++1 1 9.60 32800 40.0 54 60 7.20 24600 34.6 47 50
BAYEVAC10LG3 1-3 PH 9.60 32800 23.1 32 35 7.20 24600 20.0 28 30
BAYEVBC15LG3 1-3 PH 14.40 42000 34.6 47 50 10.80 36900 30.0 41 45

BAYEVBC15BK1 - Circuit 1 1

BAYEVBC15BK1 - Circuit 2

BAYEVBC20BK1 - Circuit 1 1

BAYEVBC20BK1 - Circuit 2

Note: * May be "A" or "T"
Note: ** Motor Amps

1 MCA and MOP for circuit 1 contains the motor amps

No. of

Circuits

2

2

Capacity Heater

kW BTUH kW BTUH

9.60 32800 40.0 54 60 7.20 24600 34.6 47 50

4.80 16400 20.0 25 25 3.60 12300 17.3 22 25

9.60 32800 40.0 54 60 7.20 24600 34.6 47 50

9.60 32800 40.0 50 50 7.20 24600 34.6 43 45

mps per
Circuit

Minimum

Circuit

Ampacity

Maximum

Overload

Protection

Capacity Heater

Amps per

Circuit

Minimum

Circuit

Ampacity

Maximum

Overload

Protection

TAM813

A

A

A

AM8 HEATER ATTRIBUTE DATA

Heater Attribute Data

*AM8A0C42V31SA

240 Volt

Heater Model No.

No Heater 0 - - 3.0** 4 15 - - 3.0** 4 15
BAYEVAC05++1 1 4.80 16400 20.0 29 30 3.60 12300 17.3 25 25
BAYEVAC08++1 1 7.68 26200 32.0 44 45 5.76 19700 27.7 38 40
BAYEVAC10++1 1 9.60 32800 40.0 54 60 7.20 24600 34.6 47 50

BAYEVAC10LG3 1-3 PH 9.60 32800 23.1 32 35 7.20 24600 20.0 28 30
BAYEVBC15LG3 1-3 PH 14.40 42000 34.6 47 50 10.80 36900 30.0 41 45

BAYEVBC15BK1 - Circuit 1 1

BAYEVBC15BK1 - Circuit 2

BAYEVBC20BK1 - Circuit 1 1

BAYEVBC20BK1 - Circuit 2

Note: * May be "A" or "T"
Note: ** Motor Amps

1 MCA and MOP for circuit 1 contains the motor amps

Heater Model No.

No Heater 0 - - 4.2** 5 15 - - 4.2** 5 15
BAYEVAC05++1 1 4.80 16400 20.0 30 30 3.60 12300 17.3 27 30
BAYEVAC08++1 1 7.68 26200 32.0 45 45 5.76 19700 27.7 40 40
BAYEVAC10++1 1 9.60 32800 40.0 55 60 7.20 24600 34.6 49 50

BAYEVAC10LG3 1-3 PH 9.60 32800 23.1 34 35 7.20 24600 20.0 30 30
BAYEVBC15LG3 1-3 PH 14.40 42000 34.6 48 50 10.80 36900 30.0 42 45

BAYEVBC15BK1 - Circuit 1 1

BAYEVBC15BK1 - Circuit 2

BAYEVBC20BK1 - Circuit 1 1

BAYEVBC20BK1 - Circuit 2

BAYEVCC25BK1 - Circuit 1 1

BAYEVCC25BK1 - Circuit 2
BAYEVCC25BK1 - Circuit 3

Note: * May be "A" or "T"
Note: ** Motor Amps

1 MCA and MOP for circuit 1 contains the motor amps

Heater Model No.

No Heater 0 - - 5.5** 7 15 - - 5.5** 7 15
BAYEVAC05++1 1 4.80 16400 20.0 30 30 3.60 12300 17.3 27 30
BAYEVAC08++1 1 7.68 26200 32.0 45 45 5.76 19700 27.7 40 40
BAYEVAC10++1 1 9.60 32800 40.0 55 60 7.20 24600 34.6 49 50
BAYEVAC10LG3 1-3 PH 9.60 32800 23.1 34 35 7.20 24600 20.0 30 30
BAYEVBC15LG3 1-3 PH 14.40 42000 34.6 48 50 10.80 36900 30.0 42 45

BAYEVBC15BK1 - Circuit 1 1

BAYEVBC15BK1 - Circuit 2

BAYEVBC20BK1 - Circuit 1 1

BAYEVBC20BK1 - Circuit 2

BAYEVCC25BK1 - Circuit 1 1

BAYEVCC25BK1 - Circuit 2
BAYEVCC25BK1 - Circuit 3

Note: * May be "A" or "T"
Note: ** Motor Amps

1 MCA and MOP for circuit 1 contains the motor amps

No. of

Circuits

2

2

No. of

Circuits

2

2

3

No. of

Circuits

2

2

3

Capacity Heater

kW BTUH kW BTUH

9.60 32800 40.0 54 60 7.20 24600 34.6 47 50

4.80 16400 20.0 25 25 3.60 12300 17.3 22 25

9.60 32800 40.0 54 60 7.20 24600 34.6 47 50

9.60 32800 40.0 50 50 7.20 24600 34.6 43 45

Capacity Heater

kW BTUH kW BTUH

9.60 32800 40.0 55 60 7.20 24600 34.6 49 50

4.80 16400 20.0 25 25 3.60 12300 17.3 22 25

9.60 32800 40.0 55 60 7.20 24600 34.6 49 50

9.60 32800 40.0 50 50 7.20 24600 34.6 43 45

9.60 32800 40.0 55 60 7.20 24600 34.6 49 50

9.60 32800 40.0 50 50 7.20 24600 34.6 43 45

4.80 16400 20.0 25 25 3.60 12300 17.3 22 25

Capacity Heater

kW BTUH kW BTUH

9.60 32800 40.0 55 60 7.20 24600 34.6 49 50

4.80 16400 20.0 25 25 3.60 12300 17.3 22 25

9.60 32800 40.0 55 60 7.20 24600 34.6 49 50

9.60 32800 40.0 50 50 7.20 24600 34.6 43 45

9.60 32800 40.0 55 60 7.20 24600 34.6 49 50

9.60 32800 40.0 50 50 7.20 24600 34.6 43 45

4.80 16400 20.0 25 25 3.60 12300 17.3 22 25

Minimum
mps per
Circuit

Ampacity

Heater Attribute Data

*AM8A0C48V41SA

240 Volt 208 Volt

Minimum
mps per
Circuit

Ampacity

Heater Attribute Data

*AM8A0C60V51SA

240 Volt 208 Volt

Minimum

mps per
Circuit

Ampacity

Circuit

Circuit

Circuit

Maximum

Overload

Protection

Maximum

Overload

Protection

Maximum

Overload

Protection

Capacity Heater

Capacity Heater

Capacity Heater

Notes:

1. See Product Data or Air Handler nameplate for approved combinations of Air Handlers and Heaters

2. Heater model numbers may have additional suffix digits.

TAM814

208 Volt

Amps per

Circuit

Amps per

Circuit

Amps per

Circuit

Minimum

Circuit

Ampacity

Minimum

Circuit

Ampacity

Minimum

Circuit

Ampacity

Maximum

Overload

Protection

Maximum

Overload

Protection

Maximum

Overload

Protection

WHEEL

BLOWER HOUSING

BELLY BAND

MOTOR

A

A is determined per chart

Wheel is centered in
Blower Housing

SUBCOOLING ADJUSTMENT

Indoor Unit Model No. Outdoor Unit Model No. Subcooling

*AM8A0B30V21CA 4A6H6024E, 4TWX6024E 9°

*AM8A0C36V31CA 4A6H6036E, 4TWX6036E 10°

*AM8A0C48V41CA 4A6H6048E, 4TWX6048E 8°

*AM8A0B30V21CA 4A7A6024E, 4TTX6024E 8°

*AM8A0C36V31CA 4A7A6036E, 4TTX6036E 8°

*AM8A0C48V41CA 4A7A6048E, 4TTX6048E 8°

*AM8A0B30V21CA 4TWZ0024A, 4A6Z0024A 9°

*AM8A0C36V31CA 4TWZ0036A, 4A6Z0036A 10°

*AM8A0C48V41CA 4TWZ0048A, 4A6Z0048A 12°

*AM8A0B30V21CA 4TTZ0024A, 4A7Z0024A 9°

*AM8A0C36V31CA 4TTZ0036A, 4A7Z0036A 11°

*AM8A0C48V41CA 4TTZ0048A, 4A7Z0048A 13°

* May be “A” or “T”
All other matches must be charged per the nameplate charging instructions.

DISTANCE FROM BELLY BAND TO SHAFT FACE OF MOTOR FOR MINIMUM VIBRATION

MODEL DIM "A"

*AM8A0A24V21CA 2-3/8

*AM8A0B30V21CA 2-3/8

*AM8A0C36V31CA 2-3/8

*AM8A0C42V31CA 2-3/8

*AM8A0C48V41CA 2-3/8

*AM8A0C60V51CA 2-3/8

* May be "A" or" T"

TAM815

Air Handler Control Panel - LEDs

Airflow Control (AFC)

J8

13.8 VDC

From DC Power Supply

24 VAC

From Transformer

J10

HUM

J7 - Motor

BM LED

J8

J2

J9 - EHC/HHC

13.8 VDC

13.8 VDC

Unit Test

TEST

J6

J5

J4

24 VAC

J11

J1

13.8 VDC

To EEV Stator

J2

J10 - Display Assembly

Distribution

Board

To Internal

J6

Condensate

Switch (Optional)

ET Sensor

J3

GT Sensor

See Table

Electronic Expansion Valve Control (EVC)

COMM LED

UNIT

BM

B

D

R

O

Y1

Y2

WIRE

TIE

STATUS

LED

STATUS

COMM

UNIT

LED

FAULT

FAULT

LED

TAM816

STATUS

LED

UNIT

STATUS

UNIT

LED

FAULT

FAULT

LED

OPEN

SW1

R410A / R22

TEST

CLOSE

OPEN

TEST

CLOSE

J4

AFC BM (Bit Master) LED (GREEN LED)

Airflow Control (AFC)

J7 - Motor

J10

TEST

Unit Test

24 VAC

J4

J8

J9 - EHC/HHC

13.8 VDC

J8

J2

13.8 VDC

r

AFC BM LED

Solid ON

Normal operation

Description

AFC COMM LED (AMBER LED)

WIRE
TIE

HUM

AFC COMM LED

Device count

Number of communicating devices*

Description

* Examples: communicating thermostat, communicating air cleaner, etc.

AFC STATUS CODES (GREEN LED)

AFC STATUS LED

ON SOLID Power up and during last 4 fault history sequence

1 Flash (per second) Stand-by or idle

Multiple Flash CFM demand - 1 flash per 100 cfm

Description

AFC UNIT LED (BLUE LED)

UnitLED

1Flash

Rapid

SOLIDON

Off

Normal(1flashevery4seconds)

CommunicationBusyError(2flashespersecond)
CommunicationscannotbeestablishedwiththeAFC

NoPower

Description

STATUS
LED

UNIT
LED

FAULT
LED

Y2

Y1

O

D

R

B

BM

COMM

STATUS

UNIT

FAULT

BM LED

COMM LED

J6

AFC FAULT CODES (RED LED)

AFC Fault

LED Description

OFF No Fault

SolidOn Internal control failure

1 24VAC fuse blown
2

3
4 Blower communication error (Status LED will be ON solid)
5
6

8
11
12

NOTES:

TAM817

PM Data Corrupt or Missing / Motor Mismatch

Communication error 3

Internal communication error (refer to Unit LED on EVC, EHC, HHC) (1)(2)

Indoor coil air sensor error

Twinning erro

EVC has detected a fault condition (refer to Fault LED on EVC)

EHC / HHC has detected a fault condition (refer to Fault LED on EHC / HHC)

1) If Unit LED on AFC is flashing 2 times/second, AFC is causing the error.

2) Unit LED on suspect control will flash 2 times/second on the suspect control.

3) Error is associated with the ComfortLink
All LED's will be off if power is not applied.

TM

II or AccuLinkTM communcating bus.

EVC STATUS CODES (GREEN LED)

A

A

y

EVC STATUS LED (Non Heat Pump Systems)

Flash

1 Cool mode selected / No active call
2 Active call for 1st stage cooling
3

NOTE:

ctive call for 2nd stage cooling (1)

(1) Single stage OD systems will report 2nd stage flash codes

EVC STATUS LED (Heat Pump Systems)

Flash

1 Cool mode selected / No active call
2 Active call for 1st stage cooling or defrost
3 Active call for 2nd stage cooling or defrost (1)
4 Heat mode selected or Thermostat system switch off
5 Active call for 1st stage heating
6

NOTE:

ctive call for 2nd stage heating (1)

(1) Single stage OD systems will report 2nd stage flash codes

EVC UNIT LED (BLUE LED)

STATUS
LED

UNIT
LED

FAULT
LED

SW1

R410A / R22

J4

OPEN
TEST
CLOSE

J11

STATUS

UNIT

FAULT

EVC

OPEN

TEST

CLOSE

UnitLED

1Flash

Rapid

SOLIDON

Off

Normal(1flashevery4seconds)

CommunicationBusyError(2flashespersecond)
CommunicationscannotbeestablishedwiththeAFC

NoPower

Description

EVC FAULT CODES (RED LED)

EVC

Fault LED Description

OFF Standb

1 Stepper Motor or wiring harness has an open circuit or intermittent short

Control has detected an internal failure (Verify EEV motor resistance and harness wiring)

2

Saturated Gas Sensor input out of range (Verify resistance, 5VDC output from control)

3
4 Evaporator Gas Sensor input out of range (Verify resistance, 5VDC output from control) (1)

Stepper Motor Coil is shorted

5

Valve is not responding to a change in position. (Possible stuck valve)

6

High superheat (Low charge or restriction)

7

Low superheat (Check airflow, possible stuck valve)

10

Condensate drain switch activated for 100 seconds (Check condensate switch and drain)

11

Indoor frost protection activated (Check refrigerant charge and airflow)

13

Internal communication fault (All operation is terminated) (Cycle power & check wire terminations)

14

Configuration fault (All operation is terminated) (Cycle power & check if PM error is present)

15

Outdoor status fault (All operation is terminated)

16

(2)

(3)

(2)

(1)

(2)

NOTES:

1) EEV will try to go to a safe position, cooling attempt allowed

2) K1 relay opens on EVC, Yo disabled

3) Cooling attempt allowed, 5 consecutive Y calls with same condition disables Yo

TAM818

PARK

T8

T7

+5V

GND

25KW

R63
R62

R19

T11

T9

R53

R52

R48

R47

D20

D1

9

C11

C9

P3

R43

R39

R38

R33

R32

D6

D5

C
10

C6

C4

C8

C2

K6

U3

R20 R25

U8 U9

T10

T12

R17

R16

R23

R22

R21

R24

K5

D21

R67

R68

D24

D25

EHC UNIT LED (BLUE LED)

EHC Fault

UnitLED

1Flash

Rapid

SOLIDON

Off

Normal(1flashevery4seconds)

CommunicationBusyError(2flashespersecond)
CommunicationscannotbeestablishedwiththeAFC

NoPower

Description

EHC STATUS CODES (GREEN LED)

EHC STATUS LED

1

2

3

4

5 5 heater relays energized

NOTES

1 heater relay energized or stand by (see note)

2 heater relays energized

3 heater relays energized

4 heater relays energized

Standby mode STATUS LED will flash 1 time per second

On a call for heat, STATUS LED will flash per the table above every 4 seconds

EHC FAULT CODES (RED LED)

Description

TAM819

LED Description

OFF Nofault

1 Internalcommunicationerror
2 Heatrelaystuckopen
3 Heatrelaystuckclosed
4 Non‐cyclinglimit(NTCO)orelementopen
5 Cyclinglimit(CTCO)open
6

Configurationerror

(1)

8 Blowerinterlockrelaystuckopenorstuckclosed

NOTES:

1) Confirm heater model and kw jumper match

UNIT
LED

STATUS
LED

FAULT
LED

T4

T2

T1

K1

R3

R44

R4

D1

U5

R5

TRANEU.S.INC.

R28

D12

UNIT

D9

R26

D10

D7

STATUS

R27

D11

D8

FAULT

C12

T3

K2

R1

R8

R9

R2

D2

+13.8V

D23

9

D16

2
R

D17

D22

R30

D14

D15

P1

AUX

PGC

R6

R45

R7

U6

D3

R10

C1

U1

U2

69

R31

R

JP1

6
6
R

C13

1

R41

R

D

D

G

D

CL

P

V

VSS

M

T6

T5

K3

R46

R13

R14

R40

R36

C7

X1

R59

R50

R57

C5

R34

R35

K4

R11

R18

R12

U7

D4

R15

8KW

15KW

10KW

5KW

20KW

R49

R37

4

5

R6

R6

1

U4

4

0

6
R

R56R55R5

R6

R73

R58

R70

C3

OV1

51

R72

R

M
1
R7

P2

B

ND

AA

A

G

T

13.8V
AT

D

DA

HHC FAULT CODES (RED LED)

HHC

Fault LED Description

OFF Nofault

1 Internalcommunicationerror
2 Watertempisat38Forlower
3 Watertempsensorisshorted
4 Watertempsensorisopen
5

Configurationerror

6 Heatdemanderror

(1)

NOTES:

1) Confirm heater model and dip switch configuration

HHC STATUS CODES (GREEN LED)

HHC STATUS LED

1 per second

2 per second

Standby or idle (see note)

Heating demand is present

HHC UNIT LED (BLUE LED)

UnitLED

1Flash
Rapid

SOLIDON
Off NoPower

Normal(1flashevery4seconds)
CommunicationBusyError(2flashespersecond)
CommunicationscannotbeestablishedwiththeAFC

Description

Description

13.8V

DATAA

DATAB

GND

MOV1

13.8VDC

D13

K1

P4

1

TAM820

D11

C1

R41

.

P1

R40

R44

R45

5
R2

3
2

R24

R

R22

C13

R28

R27

U2

R29

R26

30
R

32
R

1
3

Q1

R

5
1
R

R14

R16

GND

C9

TRANEU.S.INC.

C14

U3

C2

C3

0
R2

C10

R34

C8

R9

R11

R1

C15

C4

+5V

U1

R37

1
X

R13

R33

R48

R47

R46

39
R

C5

12
R

.

MCLR

R8

VDD

D8

D7

VSS

PGD

PGC

AUX

D9

10

P3

R

D10

Pb

D6

R19

D3

FAULT

8
R1

D5

D2

STATUS

R42

D4

R17

D1

R6

UNIT

D17

D15

D18

D14

R7

16
D

SW1

1

C17

D12

P6

R5

R4

R43

R35

C11

C12

C16

R36

R2

C6

P5

C7

R3

FAU LT

STATUS

UNIT

LED Codes - The three LED lights below appear on

the CCM control board. (BAYCC24VK01A)

CCM COM LED (AMBER LED)

CCM COMM LED

Device count

Number of communicating devices*

Description

* Examples: communicating thermostat,
communicating air cleaner, etc.

CCM STATUS LED (GREEN LED)

CCM STATUS LED

1 Flash per second

1 Flash per 4 seconds

2 Flash per 4 seconds

Idle / Standby

1st Stage

2nd Stage

Description

CCM FAULT LED (RED LED)

CCM FAULT LED

3 Flash

Communication Error

Description

COM

STATUS

FAU LT

TRANEU.S.INC

H1

R1

K2

K2

R2

K3

K3

R26

K4

K4

VR10

K1

K1

H3

H3

TRANEU.S.INC

7

C19

43

R3

CR28

1

1

O

VR7

VR8

C21

GNDNCUV

J3

R

D

D

1

1

4
4

J1

R

2
4

CR

R51
C

6
4
R

R48

C41

5

C32

LED

LED4

LED3

R73

C44

R49

FAULT

C43

C83

CR50

OFF

HP

ZR3

COM

R45

R82

83
R

STATUS

R81

BARCODE

BARCODE

U2

U1

U1

1

71
R

R89

R88

CR53

CR10

52
R

S1

C

R3

OFF

HP

1

1

1

1

L1

+

C27

1
1
D

183
TP

R32

RN1

C30

ZR7

TP181

C79

1
X

C77

R74

R158

R164

Q14

ON

R34

AC

R87

C20

4

2 STG

U4

R15

2CMP

Y1

Y1

Y2

Y2

CR43

C1

CR44

C2

P1

1MODE

C42

R47

R41

R40

C45

1

H2

H2

R

B

J2

C17

4
VR

R55

R61

CR26

R62

R60

65

R59

R

6
6
R

6
U

R57

R67

D19

C26

VR1

C36

+

+

C35

BEL

BEL

A

A

L

L

CR3

127

125

Q10

R

R

C78

6
R
C

8
7

Q11

D4

R

CR4

157
R

CR9

R98

126
R

2

R1

R

C

C

C29

R118

8

15

Q9

Q8

R1

R10

CR5

TP109

C31

Q7

H4

H4

R106

R119

TAM821

ALERT CODES FOR *AM8

d

r

y

t

y

y

r

e

t

y

y

r

e

)

(Op

)

(Op

)

)

w

,

n

T

ge,

n

g

p

p

n

,p

y

y)

y)

p

d

p

y)

d

d

AFC

EVC

EHC

Alert

Code

18 Control failure CNTRL FLT ERR18 ERR 18.0 Critical

19 Twinning fault TWIN ERR ERR19 ERR 19.0 Information 8 Air handler twinning error

52 Indoor air sensor error ICAS OPEN N/A N/A Information 6 Indoor air sensor is open Sensor open, unplugged, wiring harness

52 Indoor air sensor error ICAS SHORT N/A N/A Information

90 Communication busy fault SYS COM CRC N/A N/A Information 3 Excessive communication errors R & B to thermostat reversed polarity

91 Communication inactive fault

91 Communication inactive fault NO SYS CLK ERR91 ERR 91.03 Critical
92 Fuse failure CHECK FUSE N/A N/A Critical

104 Heater relay fault

104 Heater relay fault ALL RLY OPEN ERR104 ERR 104.02 Critical 12 2 All heater relay stuck open error Heater relay failure

104 Heater relay fault

105 Heater interlock rela
105 Heater interlock relay faul

106 External shutdown fault EXT SW OPEN ERR106 ERR 106.0 User Display 1 External shutdown input open error External float switch, other device open

114 PM bad or missing fault PM DATA ERR N/A N/A Information 2 PM data corrupt (Operation allowed) PM error

114 ID motor error ID MTR ERR ERR114 ERR 114.02 User Display 2

114 PM bad or missing fault PM MISSING ERR114 ERR 114.03 Critical 2

114 PM bad or missing fault PM UNIT ERR N/A N/A Information 2

114 PM bad or missing fault PM MEM ERR ERR114 ERR 114.05 Critical 2

114 PM bad or missing fault PM MISSING ERR114 ERR 114.06 Critical 2

114 ID motor error MTR PWR HI ERR114 ERR 114.07 User Display 2

123 Demand configuration fault EH CONFIG ERR123 ERR 123.0 User Display 12 6 Electric heat configuration rrror

152 Heater element fault

153 Thermal limit switch fault EH CTCO TRIP ERR153 ERR 153.0 User Display 12 5 Cycling thermal cut-out trip has occurred Low airflow, dirty coil/filter

154 EH airflow limit fault EH OFF/NO AF ERR154 ERR 154.0 Critical 12 7

154 EH airflow limit fault EH LIM/NO AF ERR154 ERR 154.1 User Display 12 7

155

155

156 System low on charge fault

157 Condensate fault

158 Coil freeze fault ID COIL FRST ERR158 ERR 158.0 User Display 11 13 Indoor coil freeze condition detected

159 Unit Bus fault

159 Unit Bus fault

159 Unit Bus fault

159 Unit Bus fault

159 Unit Bus fault

160 Indoor EEV control configuration error CONFIG FLT ERR160 ERR 160.0 User Display 11 15

161 Evaporator temperature sensor fault ET SEN ERR ERR161 ERR 161.0 User Display 11 3

161 Gas temperature sensor fault GT SEN ERR ERR161 ERR 161.01 User Display 11 4

163 Indoor EEV control fault EEV CNTL FLT ERR163 ERR 163.0 User Display 11 2

164 Indoor EEV fault

164 Indoor electronic expansionvValve fault

166 Superheat is flooding fault SYSTEM4 ERR ERR166 ERR 166.0 User Display 11 10 System 4 - Low superheat

167

168

169

170

171 Communication inactive fault

172 Display Assembly stuck key KEY FAULT ERR172 ERR 172.0 User Display Display Assembly has a stuck key Faulty Display Assembly

173

173

Alert Group

faul

Indoor electronic expansion valve
motor fault

Indoor electronic expansion valve
motor fault

Indoor electronic expansion valve
control is not controlling because
outdoor status is unknow

Indoor heat demand is not available to
hydronic heat control

Hydronic heat control configuration
fault
Hydronic heat control freeze condition
detected

Open coil freeze sensor (hydronic heat
onl
Shorted coil freeze sensor (hydronic
heat onl

Notes:

1. * AFC STATUS LED will be solid ON during this fault•

2. COMM LED (amber) will flash the number of communicating devices connecte

3. BM LED should be ON Solid when power is applied

4. STATUS LED will flash once per second in Idle mode.
Once a thermostat demand is received, it will flash 1 time/100 CFM requested

5. UNIT LED (blue) will flash once every four seconds when communications are norma

Display

ERR

EH RLY
OPEN#

EK RLY
WELD#

OP#

ERR

FL

ERR

ERR

ERR

ERR

ERR

ERR

ERR

ERR

SHORT

A/TCONT900 A/TZONE 950

ERR91 ERR 91.02 Critical 3 Loss of Heat/Cool demand message

ERR104 ERR 104.0 User Display 12 2 Heater relay stuck open error Heater relay failure

ERR104 ERR 104.01 Critical 12 3 Heater Relay Stuck Closed Error

ERR152 ERR 152.0 User Display 12 4 Heater element open Low airflow, dirty coil/filter

ERR156 ERR 156.0 User Display 11 7 System 1 - High superheat

ERR157 ERR 157.0 Critical 11 11 Condensate overflow condition detected Condensate line clogged

ERR159 ERR 159.0 Critical 5 14 1 1 AFC communication error

ERR159 ERR 159.01 User Display 5 1 EHC communication error

ERR159 ERR 159.02 User Display 5 1 HHC communication error

ERR159 ERR 159.03 User Display 5 14 EVC communication error

ERR159 ERR 159.04 Information 5 Display Assembly communication error

ERR164 ERR 164.0 User Display 11 6

ERR164 ERR 164.01 User Display 11 6

ERR171 ERR 171.0 Critical 4* Blower Communication is not detected Faulty wiring harness, VS motor

ERR173 ERR 173.0 User Display 12 3

Assembly Text

SYS COMM

BL INTLK OP ERR105 ERR 105.0 User Displa
BL INTLK CL ERR105 ERR 105.01 User Displa

EH ELMNT

EEV MTR ERR ERR155 ERR 155.0 User Display 11 5

EEV MTR ERR ERR155 ERR 155.01 User Display 11 1

SYSTEM1

CONDESAT

AFC COMM

EHC COMM

HHC COMM

EVC COMM

CDA COMM

EEV CLSE

EEV OPEN

OD DATA MISS ERR167 ERR 167.0 User Display 11 16 OD status unknown to EVC

HH FAULT ERR168 ERR 168.0 User Display 12 6

HH CONFIG ERR169 ERR 169.0 User Display 12 5

HH FRZ DET ERR170 ERR 170.0 User Display 12 2 Hydronic heat coil freeze detected

BLW COMM

HH FRZ OPEN ERR173 ERR 173.01 User Display 12 4

HH FRZ

Notification

Level

Fault

Fault

Code

Code

ON

6

3

1*

12 8
12 8

TAM822

Fault

Code

HHC
Fault

Code

Alert Description Possible Cause

Internal Control Error Control fault, replace AFC

Indoor air sensor is shorte

Loss of Bit Master Control fault, replace AFC

24V fuse open error 24VAC circuit short

Interlock Rela

Interlock Rela

Motor HP is < than PM value (Operation

PM missing with good local copy

Bad data in PM with good local copy

Bad data in PM with no local copy

PM missing with no local copy (Operation

Motor HP is > than PM value (Operation

Electric heat control locked out because of

Electric heat control is under restricted

operation because of insufficient airflow

EEV motor fault has been detected for 8

consecutive times and valve is locked out

EEV electric motor current indicates open

Configuration group index or evap

Indoor coil temperature sensor reading is

out of range, indicates open or short

Indoor coil temperature sensor reading is

out of range, indicates open or short

EEV electric motor drive or feedback or 12

EEV migrated to 'Close' position but

superheat is not at the desired set point,

valve is not responding to a change in

EEV migrated to 'Open' position but

superheat is not at the desired set point,

valve is not responding to a change in

Hydronic Heat is not controlling because

Indoor heat demand is not received

Hydronic heat capacity is unknown to

Hydronic coil freeze inlet temperature

Hydronic coil freeze inlet temperature

Stuck Open Erro

Stuck Closed Erro

not allowed)

(Operation allowed

eration allowed

eration allowed

not allowed

allowed)

insufficient airflo

or short

temperature sensor type are not

sensor o

sensor short condition detecte

ured

confi

V failure detected

osition

osition

dronic heat control

h

en condition detecte

More than one ID unit connected on the

communicating bus is not allowed

Sensor shorted, wiring harness

Open / Shorted data line / CCM

communication erro

Heater relay failure, open element, open

non cycling limit switch
Blower interlock relay failur
Blower interlock relay failur

Incorrect VS motor or PM installed

PM error

PM error

PM error

PM error

Incorrect VS motor or PM installed

KW jumper position on PARK

(replacement control only)

EHC locked out

Heater-Air handler mismatch

Faulty EEV motor / wiring harness

Faulty EEV motor / wiring harness

System low on charge, liquid line

ET/GT sensor calibratio

restriction

Low / incorrect airflow, low refirgerant

ET sensor calibratio

char

Wire harness between AFC and

distribution board

Wire harness between EHC and

distribution board

Wire harness between HHC and

distribution board

Wire harness between EVC and

distribution board

Wire harness between Display Assembly

and distribution board

PM programming or internal

communication error

Sensor open / shorted, unplugged, wiring

harness problem

Sensor open / shorted, unplugged, wiring

harness problem

EEV motor drive or motor feedback or 12v

Stuck valve, ET/GT sensor calibration,

If Comm LED on OD unit is flashing the

If Unit LED on HHC is flashing once every

Dip switch on HHC not set (replacement

Hydronic coil freeze inlet temperature

Sensor open, unplugged, wiring harness

Sensor short, wiring harness shorted

failure

Possible stuck valve, ET/GT sensor

calibration

Possible stuck valve, ET/GT sensor

calibration

restricted distributor line that ET is

connected to

correct device count, replace AFC

four seconds, replace HHC

control onl

sensor reading is less than 38ºF

en

o

EEV TEST PROCEDURES

Gas
Temperature
Sensor (GT)

Evaporator
Temperature
Sensor (ET)

Note: Some future
models may not
have external check
valve.

Electronic Expansion Valve Test Option 1

Access the Unit Test option through Display Assembly under the Control Menu.

Electronic Expansion Valve Test Option 2

Note: Close Valve and Open Valve Tests are active in any mode of operation

Test Pins: OPEN, CLOSE, TEST (See J4 on EVC Board)

Close Valve Test - Touch CLOSE pin to TEST pin.

EEV drives closed (5 seconds max) and stays closed for 1.5 minutes (90 seconds).

1) Status LED will be flashing.

2) Gauges should indicate suction pressure dropping.

• Valve is working.

• LPCO may trip.

Note: The Close Valve Test will exit after 1.5 minutes (90 seconds) and will not reinitiate (requires a break and make to

initialize). To clear faults stored in memory, apply a jumper between Close and Test pins for 10 seconds.

Open Valve Test - Touch OPEN pin to TEST pin.

EEV drives open (5 sec max) and stays open for 30 seconds.

1) Status LED will be flashing.

2) Temperature probe should indicate superheat falling.

• Valve is working.

Note: If jumper is left on pins, the OPEN VALVE TEST will be cleared after 30 seconds and will not reinitiate (requires a

break and make to reinitialize).

Exit Test Mode - The Open Valve Test or Closed Valve Test can be cancelled by momentarily jumping to the opposite

mode Test pin. The system will return to normal super heat control.

TAM823

EVC THERMAL RESISTANCE AND VOLTAGE TABLE

TEMPFTEMP

20 ‐6.7 45076 3.20 72 22.2 11024 1.54
21 ‐6.1 43764 3.17 74 23.3 10492 1.49
22 ‐5.6 42494 3.14 76 24.4 9990 1.44
23 ‐5.0 41266 3.10 78 25.6 9515 1.39
24 ‐4.4 40077 3.07 80 26.7 9065 1.34
25 ‐3.9 38927 3.04 82 27.8 8639 1.29
26 ‐3.3 37813 3.00 84 28.9 8236 1.25
27 ‐2.8 36736 2.97 86 30.0 7855 1.20
28 ‐2.2 35692 2.93 88 31.1 7493 1.16
29 ‐1.7 34681 2.90 90 32.2 7150 1.12
30 ‐1.1 33703 2.86 92 33.3 6825 1.08
31 ‐0.6 32755 2.83 94 34.4 6516 1.04
32 0.0 31838 2.80 96 35.6 6224 1.01
33 0.6 30949 2.76 98 36.7 5946 0.97
34 1.1 30087 2.73 100 37.8 5682 0.93
35 1.7 29253 2.69 102 38.9 5432 0.90
36 2.2 28445 2.66 104 40.0 5194 0.87
37 2.8 27661 2.62 106 41.1 4968 0.84
38 3.3 26902 2.59 108 42.2 4753 0.81
39 3.9 26166 2.56 110 43.3 4548 0.78
40 4.4 25452 2.52 112 44.4 4354 0.75
41 5.0 24761 2.49 114 45.6 4169 0.72
42 5.6 24090 2.45 116 46.7 3992 0.70
43 6.1 23440 2.42 118 47.8 3825 0.67
44 6.7 22810 2.39 120 48.9 3665 0.65
45 7.2 22198 2.35 122 50.0 3513 0.62
46 7.8 21605 2.32 124 51.1 3368 0.60
47 8.3 21030 2.29 126 52.2 3230 0.58
48 8.9 20472 2.25 128 53.3 3098 0.56
49 9.4 19931 2.22 130 54.4 2972 0.54
50 10.0 19405 2.19 132 55.6 2853 0.52
51 10.6 18896 2.16 134 56.7 2738 0.50
52 11.1 18401 2.12 136 57.8 2629 0.48
53 11.7 17921 2.09 138 58.9 2525 0.46
54 12.2 17455 2.06 140 60.0 2425 0.45
55 12.8 17002 2.03 142 61.1 2330 0.43
56 13.3 16563 2.00 144 62.2 2239 0.42
57 13.9 16137 1.97 146 63.3 2153 0.40
58 14.4 15723 1.94 148 64.4 2070 0.39
59 15.0 15320 1.91 150 65.6 1990 0.37

60 15.6 14930 1.88
61 16.1 14550 1.85
62 16.7 14182 1.82
63 17.2 13824 1.79
64 17.8 13476 1.76
65 18.3 13138 1.73
66 18.9 12810 1.70
67 19.4 12491 1.67
68 20.0 12181 1.65
69 20.6 11879 1.62
70 21.1 11586 1.59

C

THERMISTOR
RESISTANCE

(OHMS)

Volts DC at plug J3
EVAP TEMP (ET) - Orange to Orange
GAS TEMP (GT) - Black to Black

TEMPFTEMP

C

THERMISTOR

RESISTANCE

(OHMS)

Volts DC at plug J3
EVAP TEMP (ET) - Orange to Orange
GAS TEMP (GT) - Black to Black

Note: ET sensor wiring may be brown

TAM824

ET Sensor

GT Sensor

J3

See Ta ble

AFC SUPPLY AIR TEMPERATURE SENSOR TABLE

Temp.°FTemp.

0 -17.8 83247 2.946
1 -17.2 80645 2.936 76 24.4 9990 1.649
2 -16.7 78133 2.926 77 25.0 9749 1.629
3 -16.1 75709 2.915 78 25.6 9515 1.609
4 -15.6 73368 2.904 79 26.1 9287 1.589
5 -15.0 71108 2.893 80 26.7 9065 1.569
6 -14.4 68926 2.882 81 27.2 8849 1.549
7 -13.9 66818 2.870 82 27.8 8639 1.530
8 -13.3 64783 2.859 83 28.3 8435 1.510

9 -12.8 62816 2.847 84 28.9 8236 1.490
10 -12.2 60916 2.835 85 29.4 8043 1.471
11 -11.7 59081 2.822 86 30.0 7855 1.452
12 -11.1 57307 2.810 87 30.6 7671 1.433
13 -10.6 55593 2.797 88 31.1 7493 1.414
14 -10.0 53936 2.784 89 31.7 7319 1.395
15 -9.4 52333 2.771 90 32.2 7150 1.376
16 -8.9 50783 2.757 91 32.8 6985 1.357
17 -8.3 49284 2.743 92 33.3 6825 1.339
18 -7.8 47834 2.729 93 33.9 6669 1.320
19 -7.2 46432 2.715 94 34.4 6516 1.302
20 -6.7 45076 2.701 95 35.0 6368 1.284
21 -6.1 43764 2.686 96 35.6 6224 1.266
22 -5.6 42494 2.671 97 36.1 6083 1.248
23 -5.0 41266 2.656 98 36.7 5946 1.231
24 -4.4 40077 2.641 99 37.2 5812 1.213
25 -3.9 38927 2.626 100 37.8 5682 1.196
26 -3.3 37813 2.610 101 38.3 5555 1.179
27 -2.8 36736 2.594 102 38.9 5432 1.162
28 -2.2 35692 2.578 103 39.4 5311 1.145
29 -1.7 34681 2.561 104 40.0 5194 1.128
30 -1.1 33703 2.545 105 40.6 5079 1.112
31 -0.6 32755 2.528 106 41.1 4968 1.095
32 0.0 31838 2.511 107 41.7 4859 1.079
33 0.6 30949 2.494 108 42.2 4753 1.063
34 1.1 30087 2.477 109 42.8 4649 1.047
35 1.7 29253 2.459 110 43.3 4548 1.032
36 2.2 28445 2.442 111 43.9 4450 1.016
37 2.8 27661 2.424 112 44.4 4354 1.001
38 3.3 26902 2.406 113 45.0 4260 0.986
39 3.9 26166 2.388 114 45.6 4169 0.971
40 4.4 25452 2.369 115 46.1 4079 0.956
41 5.0 24761 2.351 116 46.7 3992 0.942
42 5.6 24090 2.332 117 47.2 3908 0.927
43 6.1 23440 2.313 118 47.8 3825 0.913
44 6.7 22810 2.294 119 48.3 3744 0.899
45 7.2 22198 2.275 120 48.9 3665 0.885
46 7.8 21605 2.256 121 49.4 3588 0.871
47 8.3 21030 2.237 122 50.0 3513 0.858
48 8.9 20472 2.217 123 50.6 3440 0.845
49 9.4 19931 2.197 124 51.1 3368 0.831
50 10.0 19405 2.178 125 51.7 3298 0.818
51 10.6 18896 2.158 126 52.2 3230 0.806
52 11.1 18401 2.138 127 52.8 3163 0.793
53 11.7 17921 2.118 128 53.3 3098 0.781
54 12.2 17455 2.098 129 53.9 3034 0.768
55 12.8 17002 2.078 130 54.4 2972 0.756
56 13.3 16563 2.058 131 55.0 2912 0.744
57 13.9 16137 2.037 132 55.6 2853 0.732
58 14.4 15723 2.017 133 56.1 2795 0.721
59 15.0 15320 1.997 134 56.7 2738 0.709
60 15.6 14930 1.976 135 57.2 2683 0.698
61 16.1 14550 1.956 136 57.8 2629 0.687
62 16.7 14182 1.935 137 58.3 2576 0.676
63 17.2 13824 1.915 138 58.9 2525 0.665
64 17.8 13476 1.894 139 59.4 2474 0.655
65 18.3 13138 1.874 140 60.0 2425 0.644
66 18.9 12810 1.853 141 60.6 2377 0.634
67 19.4 12491 1.833 142 61.1 2330 0.624
68 20.0 12181 1.812 143 61.7 2284 0.614
69 20.6 11879 1.792 144 62.2 2239 0.604
70 21.1 11586 1.771 145 62.8 2195 0.594
71 21.7 11301 1.751 146 63.3 2153 0.585
72 22.2 11024 1.730 147 63.9 2111 0.575
73 22.8 10754 1.710 148 64.4 2070 0.566
74 23.3 10492 1.690 149 65.0 2030 0.557
75 23.9 10238 1.669 150 65.6 1990 0.548

Thermistor
Resistance

°C

Ohms

Volts DC

@ plug J10

Temp.°FTemp.

Thermistor
Resistance

°C

Ohms

Volts DC

@ plug J10

Airflow Control (AFC)

J10

TAM825

Display Assembly

Display Assembly

Viewing Window

Push center button
to make selection

Display Assembly General Notes

Display Assembly General Notes

• Home Screen

o The System Status is shown continuously on the Home Screen.

The System Status will alternate with fault information if there
is an active fault. Low level faults do not appear on the Home
Screen.

• Technician Screens

o To Enter the technician menu section, press the Up/Down menu

keys simultaneously for 10 seconds.

o To Exit the technician menu section, press the Up/Down menu

keys simultaneously for 10 seconds.

o To move to the top of any menu tree, press the Left/Right menu

keys simultaneously for 1-2 seconds. Press the Left/Right
menu keys a second time for 1-2 seconds to return to the Home
Screen.

o While in a technician menu, after 5 minutes of inactivity, the

Home Screen will be displayed. This time can be increased to
20 minutes by pressing the Enter menu key for 2-3 seconds.

Push up & down to scroll
through setup menu

Push left & right to scroll
through menu options

Home Screen

SYSTEM STATUS
XXXXXXXXXXXXXX ↔

TAM826

Technician Screen

MONITOR MENU ↕
↔

To toggle between the Home Screen and the
Technician Screen menu, press the Up/Down
menu keys simultaneously for 10 seconds on
the Display Assembly.

ALERT MENU ↕
↔

CONFIG MENU ↕
↔

CONTROL MENU ↕
↔

Display Assembly Home Menu

Home Screen

Auto scroll

SYSTEM STATUS
XXXXXXXXXXXXXX ↔

ALERT 1 <Cntrl>
<Alert short text>

ALERT 2 <Cntrl>
<Alert short text>

ALERT 3 <Cntrl>
<Alert short text>

ALERT 4 <Cntrl>
<Alert short text>

UNIT DATA ↕
↔

UNIT MODEL # ↕
XXXXXXXXXXXXXXX

UNIT SERIAL # ↕
XXXXXXXXXX

Auto scroll

• UNIT CONTROLS
o AFC = Airflow Control
o EVC = Expansion Valve Control
o EHC = Electric Heat Control
o HHC = Hydronic Heat Control
o DA = Display Assembly

<Cntrl> = Control declaring fault
<Alert Short Text> = Short Text for Alarm (located in

Alert Code Addendum)

Note 1: System Status will rotate automatically with active
alerts. Only alerts with a notification level of User or Critical
are shown (same as the thermostat); up to four (4) alerts will
be shown, most recent first.

Note 2: Alerts shown will be only AFC faults for initial re­lease. Specific control alerts are in Alert menu section.

UNIT CONTROLS ↕
↔

AFC SW BUILD ↕
XXXXXXXXXX ↔

EVC SW BUILD ↕
XXXXXXXXXX ↔

EHC(HHC) SW BUILD ↕
XXXXXXXXXX ↔

CDA SW BUILD ↕
XXXXXXXXXX ↔

AFC SW VERSION
XXXXXXXXXX ↔

EVC SW VERSION
XXXXXXXXXX ↔

EHC (HHC) SW VERSION
XXXXXXXXXX ↔

CDA SW VERSION
XXXXXXXXXX ↔

• SYSTEM STATUS Messages
o STANDBY = Idle, no demand is present
o FAN = Continuous fan call
o ON CLG# = Compressor cooling, 1st or 2nd stage
o ON HP# = Heatpump heating, 1st or 2nd stage
o HP# + EH nnn = Heatpump heating + electric heating
o ON HPD# = Heatpump heating in defrost, 1st or 2nd

stage

o HPD# + EH nnn = Heatpump heating in defrost +

electric heating

o EH oooooo = Electric heat, elements detected but

not active
o EH nnnnoo = Electric heat, elements active
o EH nonnoo = Electric heat, element faulty

o HH = Hydronic heating
o ON HP# + HH = Heatpump heating + hydronic heating
o ON HPD# + HH = Heatpump heating in defrost +

hydronic heating

• When EHC is detected, boxes represent:

o = element configured but not energized
n = element configured and energized
o = element faulty, may or may not be energized

TAM827

Monitor Menu

CONTROL

menu

MONITOR MENU ↕
↔

EEV POSITION ↕
XXX / YYY STEPS

COIL TEMP ↕
XXX F

GAS TEMP ↕
XXX F

SUPERHEAT ↕
XXX F

ALERT

menu

Technician Monitor Menu

• The Monitor menu allows the technician to monitor the

different aspects of the system while the air handler is
running. No changes can be made in the Monitor Menu.

• Superheat is only shown in cooling and defrost modes

• Airflow Data

o The letters ESP (External Static Pressure) will

appear when the control mode of the motor is
Constant Torque; and the calculated CFM is greater
than 50 CFM from the demand. (Allow 90 seconds
for the motor ramping process to end to verify that
the motor cannot achieve the demand airflow)

• AUX HEAT DMD is only shown when an electic heat or

hydronic heat control has been detected.,

• EH RELAYS is only shown when an electric heat control

has been detected.

• H20 TEMP IN is only shown when a hydronic heat con­trol has been detected.

• COIL TEMP is calculated (CALC) during the cooling

and defrost modes.

AIRFLOW DATA ↕
<Control Mode> ↔

MOTOR DATA ↕

EXT STAT PRESS ↕
XX.XX IN CALC

LVG COIL AIR T ↕
XXX F

HUMIDIFIER ↕
ON/OFF

EXTERNAL SW ↕
CLOSED/OPEN ↔

CONDENS SW ↕
CLOSED/OPEN

AUX HEAT DMD ↕
XXX %

EH RELAYS ↕

H2O TEMP IN ↕
XXX F

↔

DEMAND AIRFLOW
XXXX CFM ↔

MOTOR SPEED
XXXX RPM ↔

EXT SW ACTION
IGNORE ↔

HH RELAY ↕

OR

H2O TEMP OUT ↕
XXX F ↔

CALC AIRFLOW
XXXX CFM ESP ↔

MOTOR TORQUE
XXX% ↔

General Notes:

• When EHC is detected, boxes represent:

o = element configured but not energized
n = element configured and energized
o = element faulty, may or may not be

energized

SYSTEM TIME ↕
DDDD:HH:MM:SS

CYCLE TIME ↕

CYCLE COUNT ↕

↔

↔

COOL RUN TIME
XXXXXX HRS ↔

COOL CYCLES
XXXXXX COUNT ↔

HP RUN TIME
XXXXXX HRS ↔

HP CYCLES
XXXXXX COUNT ↔

TAM828

AUX RUN TIME
XXXXXX HRS ↔

AUX CYCLES
XXXXXX COUNT ↔

Alert Menu

MONITOR

menu

ALERT MENU ↕
↔

ACTIVE ALERTS ↕
↔

BLW COMM ERR AF ↕
AH CB BI 01

(Example)

<Alert shrt text><Cntrl>↕
AH CH CC BI ##

ALERT HISTORY ↕
↔

<Alert shrt text><Cntrl>↕
AH CH CC BI ## ↔

<Alert shrt text><Cntrl>↕
AH CH CC BI ## ↔

CLEAR HISTORY? ↕
YES

<ENTER>

CONFIG

menu

<Alert shrt text><Cntrl>↕
DDDD:HH:MM:SS ↔

<Alert shrt text><Cntrl>↕
DDDD:HH:MM:SS ↔

ARE YOU SURE?
YES

<ENTER>

<Alert shrt text><Cntrl>↕
XXX COUNT ↔

<Alert shrt text><Cntrl>↕
XXX COUNT ↔

• The Alert menu allows the technician to view active and historical faults

that have occurred. Alerts are grouped by the control declaring the fault.
o AFC
o EVC
o EHC or HHC
o DA

• The first line of text contains the description of the fault and the compo-

nent that reported it. The abbreviations for the components are:

o AF = Air Flow control
o EV = Expansion Valve control
o EH = Electric Heat control
o HH = Hydronic Heat control
o DA = Display Assembly

• The second line of text contains any action that may take place because

of the fault and the order that the faults occurred. Some faults will shut-

down all or part of the system. See the System Actions below.

o AH = Auxiliary Heat is prohibited (electric or hydronic)
o CH = Compressor Heat is prohibited
o CC = Compressor Cooling is prohibited
o CB = Compressor Heat and Cooling is prohibited
o BI = Blower operation is prohibited*

* Applies only to states that are prohibited

• Timestamp (DDDD:HH:MM:SS)

o The elapsed time the fault occurred from when the unit was installed.

• COUNT

o The number of times the fault has occurred.
Note: When the fault history is cleared, the COUNT will also be cleared.

TAM829

Config Menu

ALERT

menu

CONFIG MENU ↕
↔

AIRFLOW MODE ↔↕
TRQ*

COOL CFM/TON ↔↕
XXX*

HEAT CFM/TON ↔↕
XXX*

SAT CONTROL ↔↕
MIDCFT*

EXT SWITCH ↔↕
IGNORE*

OD TONNAGE ↔↕
X.X*

EVC TYPE ↕
TT

TRQ

XXX

XXX

MIDCFT

IGNORE

XX

CONTROL

menu

AIRFLOW MODE ↔
CFM

TRQ

COOL CFM/TON & HEAT CFM/TON OPTIONS:
290 – 450 CFM/TON

SAT CONTROL ↔
HI-CFT

EXT SWITCH ↔
SH-CLG

MIDCFT

IGNORE

SAT CONTROL ↔
HI-EFF

EXT SWITCH ↔
DS-CLG

MIDCFT

IGNORE

Note:

“ denotes active value

“
“*” indicates factory value

SAT CONTROL ↔
NORMAL

EXT SWITCH ↔
DS-ALL

MIDCFT

IGNORE

RESTORE DFLT? ↕
YES

<ENTER>

ARE YOU SURE?
YES

• The Config Menu allows the technician to set blower mode,

airflow, supply air temperature control during defrost, and

the external switch actions.
o Checkmark is the active setting
o Asterisk is the factory default setting
o Torque mode is optional and is recommended for high

static applications. High static conditions dramatically

increase energy consumption with variable speed motors.

Evaluate the blower performance table in relationship to

the duct system to determine the benefit of each installa-

tion.
o HEAT CFM/TON is only shown when a communicating

heatpump is discovered and electric heat is present.
o SAT control is only shown when a communicating heat-

pump is discovered
o OD TONNAGE is only adjustable when a communicating

OD unit is not discovered.

• External Switch Options (See External Switch wiring section)
o IGNORE* = Ignore

When this option is selected, no action is taken.

o SH-CLG = Load Shed Cooling

When this option is selected, compressor cooling is dis-

abled.

o DS-CLG = Disable Cooling

When this option is selected, compressor cooling is dis-

abled. Used for external float switch.

o DS-ALL = Disable all

When this option is selected, all modes of operation are

disabled.

TAM830

<ENTER>

Note: Wiring to the External Switch inputs must be a normally

closed circuit with no power applied.

Note: Disable cool (DS-CLG) and disable all (DS-ALL) will gen-

erate an error on the thermostat.

• Supply Air Temperature Defrost Options
o MIDCFT* = Mid Comfort

When this option is selected, electric heat will be turned on

to maintain approximately 70 degree supply air tempera­ture, if enough electric heat capacity is available.

o NORMAL = Normal (standard)

When this option is selected, the thermostat takes control

of the amount of auxiliary heat that is energized. The Sup­ply Air Temperature sensor is not used in this mode.

o HI-EFF = High Efficiency

When this option is selected, no auxiliary heat is energized.

Thermostat heating demand is ignored.

o HI-CFT = High Comfort

When this option is selected, electric heat will be turned on

to maintain approximately 90 degree supply air tempera­ture, if enough electric heat capacity is available.

Note: When hydronic heat is applied, all selections but the High

Efficiency will default to Normal, allowing the thermostat to
control the auxiliary heat.

Control Menu

CONFIG

menu

CONTROL MENU ↕
↔

EVC TEST ↔↕
OPEN XXX

CONTROL CFM ↔↕
XXXX XXXX

UNIT TEST ↕
START? YES <ENTER>

MONITOR

menu

EVC TEST ↔↕
CLOSE XXX

TEST IN PROGRESS
EXPANSION VALVE

• EVC TEST: Scroll to desired test and push the <Enter> key.

o OPEN - When selected, the EEV will drive to the full open

position (OPEN 500).

o CLOSE - When selected, the EEV will drive to the closed

position (CLOSE 056).

• CONTROL CFM: Press <Enter> key to initiate control. (Unit

must be in Standby or Idle mode)

o First value is current selection, Second value is actual

airflow.

o Use left or right menu keys to decrease or increase airflow

in 100 CFM increments.

o Press ENTER to initiate new CFM demand. Actual airflow

is updated every six seconds.

TEST IN PROGRESS
BLOWER RUN

TEST IN PROGRESS
AUXILIARY HEAT

TEST COMPLETE

• UNIT TEST: Press <Enter> key to initiate test. (Unit must be

in Standby or Idle mode)

o Once test is started, the screen update automatically and

navigation is not allowed.

o UNIT TEST may only be interrupted by a thermostat

demand or turning off the power.

NOTE: EVC TEST and/or AUX HEAT TEST will be skipped if the

associated control(s) is/are not discovered.

TAM831

Troubleshooting

Verify connections for sensors are

plugged in and connected properly

Start Here

Sensor Check

Turn System switch on thermostat to

OFF and Fan to ON position

Does voltage(s) measured correspond

to return air temperature? +-3F

J3

4

5

6

7

Wait 10 minutes Measure return air temperature

YES

NO

Remove J3 connector

Is 4.5 – 5 VDC

measured between pins

4-5 and pins 6-7?

YES

Remove J3 connector and

measure resistance across

BK-BK and OR-OR

NO

Measure VDC at J3 connector on EVC.

(See EVC table for J3 location)

Proceed to next

step

Replace EVC

Do resistance readings

match chart (within +- 5%)

for the return air

temperature?

Measure resistance of each

sensor lead to ground

Are zero ohms

NO

measured from

any lead to

ground

TAM832

NO

Replace sensor(s)

Check sensor leads for

YESSensors are good

short to ground. Replace

or repair as needed

HIGH SUPERHEAT

Superheat above 30F at OD unit

Start Here

Verify that OD

condenser coils

are clean

Add refrigerant

until subcooling

reaches ~10F

Recheck

superheat

Verify line set is

properly sized for

application

EEV and coil are working.

Replace EVC

Check operation

YES

Does suction

pressure go

down?

NO

Is subcooling at the

outdoor unit

between 8-12F?

Perform “CLOSE

VALVE” test at

EVC.

Perform

YES

YES

temperature

sensor check

Is liquid line temperature

at the indoor unit within
8F of outdoor liquid line

temperature?

YES

Perform “OPEN

VALVE” test at

EVC.

Does

superheat drop

below 30F?

NO

Verify line set size

NO

maximum capacity and this

NO

and charge is

correct

The system is running at

may be causing the high

superheat. Wait until the

indoor temperature is less

than 80F and check the

superheat again.

YES

Is indoor

temperature

>85F?

Ohm coil per FIG 1?

Replace coil NO

Is ohm reading

correct?

YES

Replace EEV.

Check operation

Figure 1

4 - Phase Coil Control

4 - BLUE

5 - BROWN (COMMON)

6 - RED (COMMON)

3 - ORANGE

2 - YELLOW

1 - WHITE

● Brown (common) to Blue or Yellow should measure 46 ohms

● Red (common) to Orange or White should measure 46 ohms

TAM833

LOW SUPERHEAT

Superheat below 3F at OD unit

Start Here

Is filter, coil,

and blower

wheel clean?

Clean or replace

as needed

NO

Perform sensor

check

YES

Perform “CLOSE

VALVE” test at

EVC.

Does suction

pressure drop?

Perform “OPEN

VALVE” test at

EVC.

Does suction

pressure rise?

Replace EVC

YES

Replace EVC

YES

Replace EEV.

Check operation

Ohm coil per FIG1

Is ohm reading

correct?

YES

Replace coil

NO

NO

NO

F

B

R

Insure ID motor is running

Figure 1

4 - Phase Coil Control

5 - BROWN (COMMON)

6 - RED (COMMON)

4 - BLUE

3 - ORANGE

2 - YELLOW

1 - WHITE

● Brown (common) to Blue or Yellow should measure 46 ohms

● Red (common) to Orange or White should measure 46 ohms

TAM834

TAM835

Trane
6200 Troup Highway
Tyler, TX 75707
www.trane.com

For more information contact
your local dealer (distributor)

05/11

The manufacturer has a policy of continuous product and product data improvement, and it reserves the right
to change design and specifications without notice.