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INSTALLATION MANUAL
SINGLE PIECE
NON-VARIABLE SPEED AIR HANDLERS
MODELS: AHP SERIES
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
UNIT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
ELECTRIC HEATER INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . .7
LOW VOLTAGE CONTROL CONNECTIONS . . . . . . . . . . . . . . . . . .8
REQUIRED CONTROL SET-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Typical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Return Duct Attachment & Component Location . . . . . . . . . . . . . . . . .3
Condensate Deflector on Vertical Drain Pan . . . . . . . . . . . . . . . . . . . .4
Condensate Deflector on Horizontal Drain Pan Edge . . . . . . . . . . . . .5
S-Clip Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Duck Work Transition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Typical Horizontal Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
TXV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Low Voltage Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Fault Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Low Fan Control Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Blower Delays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Heat Relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Physical and Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Conversion Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Electrical Data - Cooling Only (60 Hz) . . . . . . . . . . . . . . . . . . . . . . . .11
Electrical Data - 208/230-1-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
SECTION I: GENERAL
The AHP single piece air handler provides the flexibility for installation
in any upflow, downflow, or horizontal application.
These versatile models may be used for cooling or heat pump operation
with or without electric heat.
A BRAND LABEL (available from Distribution) may be applied to the
center of the blower access panel.
The unit can be positioned for bottom return air in the upflow position,
top return air in the downflow position, and right or left return in the hor-
izontal position.
Top and side power wiring and control wiring, accessible screw termi-
nals for control wiring, easy to install drain connections and electric
heaters all combine to make the installation easy, and minimize installa-
tion cost.
SECTION II: SAFETY
This is a safety alert symbol. When you see this symbol on
labels or in manuals, be alert to the potential for personal
injury.
Understand and pay particular attention to the signal words DANGER,
WARNING, or CAUTION.
DANGER indicates an imminently hazardous situation, which, if not
avoided, will result in death or serious injury.
LIST OF SECTIONS
LINE POWER CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
BLOWER SPEED CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . 10
UNIT DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
LIST OF FIGURES
Proper Bulb Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Line Power Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Blower Speed Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Cooling Models with Electric Heat Wiring . . . . . . . . . . . . . . . . . . . . . 16
Single-Stage Cooling Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Wiring Diagram - AHP18-48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Wiring Diagram - AHP60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
LIST OF TABLES
Copper Wire - 208/230-1-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Copper Wire - 208/230-1-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Electrical Data - 208/230-3-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Copper Wire - 208/230-3-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Copper Wire - 208/230-3-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Air Flow Data - 60 Hz Models - 208 Volt . . . . . . . . . . . . . . . . . . . . . . 15
Air Flow Data - 60 Hz Models - 230 Volt . . . . . . . . . . . . . . . . . . . . . . 16
WARNING indicates a potentially hazardous situation, which, if not
avoided, could result in death or serious injury.
CAUTION indicates a potentially hazardous situation, which, if not
avoided may result in minor or moderate injury. It is also used to
alert against unsafe practices and hazards involving only property dam-
age.
Improper installation may create a condition where the operation of
the product could cause personal injury or property damage.
Improper installation, adjustment, alteration, service or mainte-
nance can cause injury or property damage. Refer to this manual
for assistance or for additional information, consult a qualified con-
tractor, installer or service agency.
This product must be installed in strict compliance with the installa-
tion instructions and any applicable local, state, and national codes
including, but not limited to building, electrical, and mechanical
codes.
ISO 9001
Certified Quality
Management System
278410-UIM-K-1010
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Summary of Contents for Johnson Controls AHP Series
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Page 1: Table Of Contents
INSTALLATION MANUAL SINGLE PIECE NON-VARIABLE SPEED AIR HANDLERS MODELS: AHP SERIES ISO 9001 Certified Quality Management System LIST OF SECTIONS GENERAL ..........1 LINE POWER CONNECTIONS . -
Page 2: Safety
There are no shipping or spacer brackets Proper electrical supply must be available. which need to be removed. Johnson Controls Unitary Products... -
Page 3: Typical Installation
WHEN ATTACHING DUCT WORK WITH SECONDARY DRAIN SIDES AND REAR OF UNIT SCREWS - KEEP SCREWS WITHIN 5/8” UPFLOW 3/4” THREADED OF SIDES AND BACK OF AIR HANDLER FIGURE 2: Return Duct Attachment & Component Location Johnson Controls Unitary Products... -
Page 4: Dimensions & Duct Connection Dimensions
NOTICE The condensate deflector should be installed in the s-clip section which is inside the drain pan edge. See Figure 6. S-CLIPS (3) VERTICAL CONDENSATE DRAIN PAN DEFLECTOR FIGURE 4: Condensate Deflector on Vertical Drain Pan Johnson Controls Unitary Products... -
Page 5: Condensate Deflector On Horizontal Drain Pan Edge
When an evaporator coil is installed in an attic or above a finished ceil- ing, an auxiliary drain pan should be provided under the air handler as is specified by most local building codes. Johnson Controls Unitary Products... -
Page 6: Typical Horizontal Installation
Remove the heat shield from the Customer Packet, soak in water, and install over coil tubing to prevent overheating of cabinet. Johnson Controls Unitary Products... -
Page 7: Electric Heater Installation
HUM OUT HEAT ENABLE EAC RELAY RELAY OUTPUT JUMPER OUTPUT LOW FAN RELAY OUTPUT MODE JUMPER HUM STAT JUMPER FUSE SPARE JUMPER FIGURE 11: Control Board Johnson Controls Unitary Products... -
Page 8: Low Voltage Control Connections
Table 3. The control will display the fault codes until power is removed from the control or the fault condition is no longer present. Johnson Controls Unitary Products... -
Page 9: Fault Codes
Y/Y2 and HUM de-energized with Dehumidification during cooling heat according to the thermostat inputs using normal timings. The HUM STAT jumper in YES position blower will remain locked on from the first long duration limit opening. Johnson Controls Unitary Products... -
Page 10: Line Power Connections
Figure 13. Airflow data is shown in Tables 16 & 17. motors. The 5 ton (060 model) has a programmed X-13 motor. Connect motor wires to motor speed tap receptacle for speed desired. See unit wiring label for motor wiring details. Johnson Controls Unitary Products... -
Page 11: Physical And Electrical Data
Minimum Circuit Ampacity Minimum Wire Max. O.C.P. Models 60 Hertz 60 Hertz Size A.W.G. Amps/Type 208V 230V 208V 230V 1. OCP = Over Current Protection device, must be HACR type Circuit Breaker or Time Delay fuse. Johnson Controls Unitary Products... -
Page 12: Electrical Data - 208/230-1-60
19.2 4HK16502506 Med-High/#2 18.0 24.0 61.5 81.9 10.8 14.4 18.0 24.0 1. See conversion Table 8. 2. 30B w/4HK165N1506 only approved for use up to 0.4” static. May be 0 (no breaker) or 1 (with breaker). Johnson Controls Unitary Products... -
Page 13: Electrical Data - (For Single Source Power Supply) - Copper Wire - 208/230-1-60
88.9 101.1 4HK16502006 80.0 96.2 109.5 4HK16502506 100.0 117.8 134.5 1. O.C.P. = Over Current Protection device, must be HACR type Circuit Breaker or Time Delay fuse. May be 0 (no breaker) or 1 (with breaker). Johnson Controls Unitary Products... -
Page 14: Electrical Data - (For Multi-Source Power Supply) - Copper Wire - 208/230-1-60
208/230 208/230 4HK16501825 31.9/35.4 22.4/25.9 – 35/40 25/30 – 10/10 – 4HK16502525 40.8/45.6 31.3/36.1 – 45/50 35/40 – – 1. O.C.P. = Over Current Protection device, must be HACR type Circuit Breaker or Time Delay fuse. Johnson Controls Unitary Products... -
Page 15: Electrical Data - (For Single Source Power Supply) - Copper Wire - 208/230-3-60
831 35.9 34.5 33.1 31.7 30.3 29.4 27.8 26.9 25.3 23.5 1. Includes return air filter and coil. Air handler units are UL Listed up to 1/2" w.c. external static pressure, including air filter, wet coil, and largest KW size heater, unless otherwise noted. Johnson Controls Unitary Products... -
Page 16: Cooling Models With Electric Heat Wiring
1. “Y” Terminal on Air Handler Control Board must be connected for full CFM and applications requiring 60 second blower off delay for SEER enhancement. 2. Move HUM STAT Jumper on AH Control Board to YES position if Humidistat is used. 3. MODE Jumper on AH control board should be set to A/C for air conditioners. Johnson Controls Unitary Products... -
Page 17: Maintenance
Calgon CalClean (mix one part CalClean to seven parts water). Allow solution to remain on coil for 30 minutes before rinsing with clean water. Solution should not be permitted to come in contact with painted sur- faces. Johnson Controls Unitary Products... -
Page 18: Wiring Diagram
278410-UIM-K-1010 SECTION XI: WIRING DIAGRAM FIGURE 16: Wiring Diagram - AHP18-48 Johnson Controls Unitary Products... -
Page 19: Wiring Diagram - Ahp60
278410-UIM-K-1010 FIGURE 17: Wiring Diagram - AHP60 Johnson Controls Unitary Products... - Page 20 .Subject to change without notice. Published in U.S.A 278410-UIM-K-1010 Copyright © 2010 by Johnson Controls, Inc. All rights reserved. Supersedes: 278410-UIM-J-0810 Johnson Controls Unitary Products 5005 York Drive Norman, OK 73069...
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