Johnson Controls JRE Series Owner's manual

Water Source Heat Pumps
Installation, Operation, Maintenance Supersedes: Form: 14808-NOM1-0820
97B0081N06
Issue Date: August 19, 2020
JRE-Series
Water Source Heat Pump
MODELS JRE
3-20 Tons

WATER-SOURCE HEAT PUMPS
JRE-Series
Rev.: August 19, 2020
Installation, Operation, Maintenance
2
Table of Contents
Model Nomenclature 3
General Information 4
JRE036-072 Dimensional Data 5
JRE096-144 Dimensional Data 6
JRE168-240 Dimensional Data 7
Standard Roof Curb 8
Standard Curb with Vibration Isolation 9
Side Discharge Supply & Return Roof Curb 10
Side Discharge Supply & Return Isolation Curb 11
Installation 12
Piping Installation 13
Water Quality Standards 14
Electrical Wiring 15
Electrical – Low Voltage Wiring 16-17
Electrical – Thermostat Wiring 19
Electrical – Low Voltage Wiring for
External Motorized Water Valve 18
Electrical Data 20
Electrical Data – Reheat or Internal
Secondary Pump 21
TWD – Units with MPC DDC, Auxiliary Diagram 22
TWD – Units with LON DDC, Auxiliary Diagram 23
TWD – Units with Economizer Option 24
TWD – Single Compressor, DXM2 25
TWD – Typical Two Compressor Unit/DXM2 26
Nomenclature – Condenser Hot
Water Reheat Option 27
Condenser Hot Water Reheat –
Benets and Applications 28-29
Condenser Hot Water Reheat –
Sequence of Operation 30-31
Blower Performance Data –
Units w/ Condenser Hot Water Reheat 32
Flushing/Purging Units w/ Condenser Hot
Water Reheat 33
Unit Commissioning & Operating Conditions 34
Start-Up Preparation 35
Blower Adjustment 36
Tensioning V-Belt Drives 37
Unit System Checkout 38
Unit Start-up 38-39
Start-up Sheet Log 40
Preventive Maintenance 41
Revision History 44

JRE-Series
Rev.: August 19, 2020
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Installation, Operation, Maintenance 3
Model Nomenclature
Curb
J R 0 3 6 HD 1C A A A A B
1 2 4 5 6 7 8
9
10 11 12 13 14 15
JR = JOHNSON CONTROLS
SERIES
SERIES
REVISION LEVEL
VOLTAGE
CONTROLS
CABINET & FILTER
HEAT EXCHANGER OPTIONS
A = NONE
AIR DAMPER OPTIONS
A = NONE
POWER TERMINATION
B = DISCONNECT
C = DISCONNECT + GFI OUTLET
STANDARD
C = CXM
BLOWER DRIVE PACKAGE
D = DXM2
L = CXM w/LON
M = DXM2 w/LON
N = CXM w/MPC
P = DXM2 w/MPC
B = MANUAL ADJUSTABLE FRESH AIR DAMPER
B = STANDARD
UNIT SIZE
036
048
060
072
096
120
144
168
240
ETL APPROVED
USA & CANADA
A = STANDARD RPM & STANDARD MOTOR
B = LOW RPM & STANDARD MOTOR
C = HIGH RPM & STANDARD MOTOR
D = STANDARD RPM & LARGE MOTOR
E = HIGH RPM & LARGE MOTOR
D = CIRCUIT BREAKER
E = CIRCUIT BREAKER + GFI OUTLET
C = MOTORIZED FRESH AIR DAMPER
OPTION RANGE 2”, (50mm) FILTER
MERV 8 4”, (50mm) FILTER
MERV 8
4”, (100mm) FILTER
MERV 13
THROWAWAY FILTER OPTIONS
1
B
C
3
D
E
EXTENDED
RANGE
STANDARD
RANGE
YES NO NO
NO YES NO
NO NO YES
YES NO NO
NO YES NO
NO NO YES
F = MODULATING ENTHALPY ECONOMIZER
F = HOT GAS BYPASS
REHEAT COIL
3-WAY MOTORIZED VALVE
PROPORTIONAL CONTROL
CIRCULATING PUMP
PUMP CONTACTOR
HOT GAS BYPASS
REHEAT OPTION COMPONENTS
E = ROOFTOP WATER SOURCE
HEAT PUMP
COMPRESSOR TYPE
E
3
{
NON-COATED AIR COILS COATED AIR COILS
C
T
N
S
A
U
J
W
STANDARD
MOTORIZED VALVE
COPPER (CU)
COAX
CUPRO-NICKEL (CN)
COAX
E P D F
REHEAT
H Z G Y
INTERNAL
SECONDARY PUMP
COPPER (CU)
COAX
CUPRO-NICKEL (CN)
COAX
N = 575/60/3
D= CURRENT ALL SIZES
F = 460/60/3
H = 208-230/60/3 (FACTORY WIRED 208)
ACURBA A A A
1 2 3 4 5 9 10 11 12
Model Type
JRE 036 - 072 Standard Curb = AAA
CURB TYPE and/or Cabinet Size
Curb Constructions
B = Standard 24” High - JRE
C = Horizontal Discharge/RH & LH
Field Changeable - Supply and Return
JRE 168 - 240 Standard Curb = AAC
JRE 096 -144 Standard Curb = AAB
G
8
Revision Level
G= Current Revision
A = Standard 14” High - JRE
R T
6 7
ACURB = Curb
Series Type
RT = JRE Series
A
13
Curb Options
B = Welded
C = Welded Vibration Isolation
A = Knocked Down
S = Standard
N
14
Not Used
S
15
Standard
Note: Horizontal curb adapter for TRE only.
End return RH or LH supply, field changable.
Fits on top of digit 12 option A or B.
Digit 13 can be option A or C.

WATER-SOURCE HEAT PUMPS
JRE-Series
Rev.: August 19, 2020
Installation, Operation, Maintenance
4
General Information
WARNING! To avoid equipment damage, do not use these
units as a source of heat during the construction process.
The mechanical components and lters used in these units
will quickly become clogged with construction dirt and debris
which may cause system damage.
WARNING! Some units may be charged with refrigerants
other than 410A and are so labeled. Use appropriate
refrigerant handling techniques. Mixing refrigerants in units
is dangerous and can cause equipment damage. To avoid
the release of refrigerant into the atmosphere, the refrigerant
circuit of this unit must only be serviced by technicians who
meet local, state and federal prociency requirements.
5. Verify curb is proper size for unit. Install curb
according to manufacturer's instructions prior to
installing unit.
6. Properly size supply and return duct work. Mount
supply air duct to curb before installing unit.
Inspection - Upon receipt of shipment at the job site,
carefully check the shipment against the bill of lading.
Make sure all units have been received. Inspect the carton
or crating housing of each Rooftop Unit and inspect each
unit for damage. Assure that the carrier makes proper
notation of any shortages or damage on all copies of the
freight bill and that he completes a Carrier Inspection
Report. Concealed damage not discovered during
unloading must be reported to the carrier within 15 days
of receipt of shipment. NOTE: It is the responsibility
of the purchaser to le all necessary claims with the
carrier.
Storage - Upon the arrival of equipment at the job site,
immediately store units in a clean, dry area. Store units
in an upright position at all times. Stack unit model
numbers JRE-036 through JRE-120 no more than 2
units high. Do not stack units larger than model number
JRE-120. Do not remove equipment from pallets until
equipment is required for installation
Unit Protection - Cover rooftop units on the job site.
Cap the open ends of pipes. In areas where painting,
plastering, roong, or the spraying of reproof material
has not been completed, all due precautions must
be taken to avoid physical damage to the units and
contamination by foreign material. Physical damage and
contamination may prevent proper start-up and may
result in costly equipment cleanup.
Pre-Installation - Installation, operation and maintenance
instructions are provided with each unit. Before unit start-
up, read all manuals and become familiar with the unit
and its operation. Thoroughly check out the system before
operation.
Prepare rooftop units for installation as follows:
1. Compare the electrical data on the unit nameplate
with ordering and shipping information to verify that
the correct unit has been shipped.
2. Select an installation site on the roof which allows
adequate clearance for maintenance and servicing
of the unit. A minimum of two feet of clearance is
required on all service access and drain connection
sides of the unit.
3. Verify that refrigerant tubing is free of kinks or dents,
and that it has not been damaged during shipping.
4. Examine all pipes, ttings, valves and components
before installing the system. Remove any dirt found
on or in these components and assure that all
components are securely tted.
� WARNING! �
� WARNING! �
� CAUTION! �
CAUTION! Supply air duct is inaccessible from inside unit
once unit is installed.
WARNING! The installation of water-source heat pumps and
all associated components, parts, and accessories which
make up the installation shall be in accordance with the
regulations of ALL authorities having jurisdiction and MUST
conform to all applicable codes. It is the responsibility of
the installing contractor to determine and comply with ALL
applicable codes and regulations.
� WARNING! �
WARNING! This product can expose you to chemicals
including formaldehyde, which is known to the state of
California to cause cancer. For more information, go to
www.P65Warnings.ca.gov.
� WARNING! �

JRE-Series
Rev.: August 19, 2020
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Installation, Operation, Maintenance 5
JRE036-072 Dimensional Data
Optional Rain Hood
Optional Rain Hood
Pipe Chase
Top View of Base
S
e
rvi
ce
Ac
ce
ss
3
.
5
’
(
1
.1
me
t
e
r
s)
S
e
r
v
i
ce A
c
c
e
ss
3
.
5
’ (
1
.
1
m
e
t
ers
)
Size Outdoor Air Opening Water In/Out (IPT)
JRE36 12.57" X 30" 3/4" JRE48 12.57" X 30" 3/4" JRE60 12.57" X 30" 1" JRE72 12.57" X 30" 1 1/4"
Condensate
1" 1” 1” 1”

WATER-SOURCE HEAT PUMPS
JRE-Series
Rev.: August 19, 2020
Installation, Operation, Maintenance
6
JRE096-144 Dimensional Data
Top View of Base
Optional Rain Hood
Optional Rain Hood
S
e
rvi
ce
Ac
ce
ss
3
.
5
’
(
1
.1
me
t
e
r
s)
S
e
r
v
i
ce A
c
c
e
ss
3
.
5
’ (1.1
m
e
t
ers
)
Size Outdoor Air Opening Water In/Out (IPT)
JRE96 18.95" X 36" 1 1/4"
JRE120 18.95" X 36" 1 1/2" JRE144 18.95" X 36" 1 1/2"
Condensate
1" 1" 1"
Pipe Chase

JRE-Series
Rev.: August 19, 2020
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Installation, Operation, Maintenance 7
JRE168-240 Dimensional Data
Pipe Chase
Optional Rain Hood
Optional Rain Hood
S
e
r
v
i
c
e
A
c
c
e
s
s
3
.
5
’
(
1
.
1 me
t
e
r
s)
S
e
r
v
i
c
e
A
c
c
e
ss
3
.5’
(1.1
m
e
te
r
s
)
Top View of Base
Size Outdoor Air Opening Water In/Out
JRE168 18.95" X 74" 2" JRE240 18.95" X 74" 2"
Condensate
1" 1"

WATER-SOURCE HEAT PUMPS
JRE-Series
Rev.: August 19, 2020
Installation, Operation, Maintenance
8
Standard Roof Curb
Model A B C D E F*
JRE036/48/60/72 72.25” 18” 35.25” 72.25” 35.25” 14” or 24”
JRE096/120/144 82.25” 21” 41.25” 82.25” 41.25” 14” or 24”
JRE168/240 82.25” 21” 78.88” 82.25” 78.88” 14” or 24”
* “F” dimension can be 14” or 24”

JRE-Series
Rev.: August 19, 2020
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Installation, Operation, Maintenance 9
Standard Curb with Vibration Isolation
Model A B C D E F*
JRE036/48/60/72 72.25” 18” 35.25” 72.25” 35.25” 14” or 24”
JRE096/120/144 82.25” 21” 41.25” 82.25” 41.25” 14” or 24”
JRE168/240 82.25” 21” 78.88” 82.25” 78.88” 14” or 24”
* “F” dimension can be 14” or 24”
Note: Finish height is 12.5" taller than the base curb height.

WATER-SOURCE HEAT PUMPS
JRE-Series
Rev.: August 19, 2020
Installation, Operation, Maintenance
10
Side Discharge Supply & Return Roof Curb
Model A B C
JRE036/48/60/72 72.25” 18” 35.25”
JRE096/120/144 82.25” 21” 41.25”
JRE168/240 82.25” 21” 78.88”