Johnson Controls AFFINITY BHX024 Installation Manual

R-410A
AFFINITY SERIES
BHX024-060
2-5 Ton
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Rigging And Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Ductwork . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Roof Curb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Service Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Power And Control Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . 8
1 Unit Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Unit Accessory Weights . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Unit Dimensions Front . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 Unit Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
5 Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6 Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
7 Side Duct Application . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
8 Bottom Duct Application . . . . . . . . . . . . . . . . . . . . . . . . . 15
1 Component Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Unit 4 Point Load Weight . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 Dimensions Front and Bottom . . . . . . . . . . . . . . . . . . . . . 6
5 Dimensions Back and Bottom . . . . . . . . . . . . . . . . . . . . . 6
6 Roof Curb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

General

®
YORK Affinity Model BHX units are factory assembled heat
pumps designed for outdoor installation on a roof top or a slab.
Field-installed electric heater accessories are available to
provide supplemental electric heat combined with electric
cooling and heating.
The units are completely assembled on rigid, removable base
rails. All piping, refrigerant charge, and electrical wiring is
factory installed and tested. The units require only electric
power and duct connections at the point of installation.
The electric heaters have nickel-chrome resistance wire
elements and utilize single point power connection.
Safety Considerations
This is a safety alert symbol
labels or in manuals, be alert to the potential for personal injury.
Understand and pay particular attention the signal words
DANGER, WARNING or CAUTION.

TABLE OF CONTENTS

LIST OF TABLES
LIST OF FIGURES
. When you see this symbol on
Compressors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Phasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Airflow Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Blower Speed Selection . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Cooling Sequence Of Operations . . . . . . . . . . . . . . . . . . . 18
Heating Sequence Of Operations . . . . . . . . . . . . . . . . . . . 19
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Normal Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
9 Additional Static Resistance . . . . . . . . . . . . . . . . . . . . . . 17
10 Electric Heat Minimum Supply Air . . . . . . . . . . . . . . . . . 17
11 Indoor Blower Specifications . . . . . . . . . . . . . . . . . . . . . . 17
12 Electric Heat Multipliers . . . . . . . . . . . . . . . . . . . . . . . . . 18
13 Delay Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
14 Thermostat Signals (Single Phase Units) . . . . . . . . . . . . 20
15 Thermostat Signals (Three Phase Units) . . . . . . . . . . . . 21
7 Field Control Wiring Diagram Single Stage Thermostat . 9
8 Field Control Wiring Diagram 2 Stage Thermostat . . . . . 9
9 Field Power Wiring Diagram . . . . . . . . . . . . . . . . . . . . . 10
10 Control Board Speed Tap Location . . . . . . . . . . . . . . . . 18
11 Demand Defrost "Curve" Selection Jumper . . . . . . . . . . 19
12 R-410A Quick Reference Guide . . . . . . . . . . . . . . . . . . 29
DANGER indicates an imminently hazardous situation, which,
if not avoided, will result in death or serious injury.
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 damage.
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 maintenance can cause injury or
property damage. Refer to this manual for assistance or
for additional information, consult a qualified contractor,
installer or service agency.
SO 9001
Certified Quality
Management System
155439-YIM-F-0211