MicroMetl ECD-SRTCA-D2 User manual
Foremost HVAC Accessory Manufacturer
Economizer
ECD-SRTCA-D2
Install Guide
Table of Contents
Topic Page Number
General 1
Topic Page Number
General Install Instructions 1
1
Since 1965
MicroMetl
Installation Instructions
Part No: ECD-SRT12CA-D2*H, ECD-SRT34CA-D2*H and ECD-SRT05CA-D2*H
CONTENTS
Safety Consideration. . . . . . . . . . . . . . . . . . . . . . . . .1
General Descriptions. . . . . . . . . . . . . . . . . . . . . . . .1
Usage Chart, Package Contents, Sensors . . . . . . 2
Accessories and Compliance. . . . . . . . . . . . . . .3
Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7
Economizer Performance Charts. . . . . . . . . . .8
Economizer Wiring Diagram (Non LC 07-12). . . .9
48/50LC 07-12 Instructions and Diagram. . . . .10-12
Enthalpy Accessory. . . . . . . . . . . . . . . . . . . . . . . .13
Dierential Return Sensor Accessory. . . . . . . . .14
Title 24 High Temp Limit, Demand Control
Ventilation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Remote Fault Detection & Diagnostics. . . . . . . 15
Economizer Jade Controller. . . . . . . . . . . . .16
Programming Jade W7220 Controller. . . . . . . .17
Controller Menu Structure. . . . . . . . . . . . . . .18-21
Checkout Tests & Controller Terminals. . . . . .21-22
Start-Up and Operation. . . . . . . . . . . . . . . . . . . . . .23
Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
SAFETY CONSIDERATIONS
Installation of this accessory can be hazardous due to system
pressures, electrical components and equipment, and equipment
locations (such as a roof or elevated surface). Only trained
qualied installers and service technicians should install, start-up,
and service this equipment.
When installing this accessory, observe precautions in the literature
and on any labels attached to the equipment and all other safety
precautions may apply.
• Follow all safety codes.
• Wear safety glasses and work gloves.
• Use care in handling and installing the accessory.
It is important to recognize safety information. This is the safety-
alert symbol . When you see this symbol on the unit and in
instructions or manuals, be alert to the potential for personal injury.
Understand the signal words DANGER, WARNING, CAUTION,
and NOTE. These words are used with the safety-alert symbol.
DANGER identies the most serious hazards which will result
in severe personal injury or death. WARNING signies hazards
which could result in personal injury or death. CAUTION is used to
identify unsafe practices, which may result in minor personal injury
or product and property damage.
NOTE is used to highlight suggestions which will result in enhanced
installation, reliability, or operation.
GENERAL
The Economizer system utilizes the latest technology available
for integrating the use of free cooling with mechanical cooling
for packaged rooftop units. The code compliant Jade W7220
control system optimizes energy consumption, zone comfort, and
equipment cycling by operating the compressors when the outdoor-
air is too humid, integrating the compressor with outdoor air when
free cooling is available, and locking out the compressor when
outdoor-air temperature is too cold. Demand control ventilation is
supported.
This Economizer can be used with 1 or 2 speed indoor fan motor
units.
The Economizer system utilizes gear-drive technology with a
direct-mount spring return actuator that will close upon loss
of power. The Economizer system comes standard with fault
detection and diagnostics (FDD), an outdoor air sensor, and mixed
air temperature sensor (also called supply air temperature sensor).
Outdoor enthalpy, indoor (return) dry bulb or enthalpy, and CO2
sensors are available for eld installation. See Table 5 for sensor
usage.
Standard integrated barometric relief dampers provide natural
building pressurization control. An optional power exhaust system
is available for applications requiring even greater exhaust
capabilities. The power exhaust set point is adjustable at the
Economizer controller.
See Table 1-3 for package usage. See Table 4 for package contents.
See Table 5 for sensor usage.
WARNING
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could cause personal injury or death. Before
performing service or maintenance operations on the unit, always turn o
main power switch to unit and install lock(s) and lockout tag(s). Unit may
have more than one power switch. Ensure electrical service to rooftop unit
agrees with voltage and amperage listed on the unit rating plate.
CAUTION
CUT HAZARD
Failure to follow this caution may result in personal injury.
Sheet metal parts may have sharp edges or burrs. Use care and wear
appropriate protective clothing, safety glasses and gloves when handling
parts and servicing roof top units.
CAUTION
Failure to follow this caution may result in personal injury and damage to
the unit. Cover the duct opening as a precaution so objects cannot fall into
the return duct opening. Be sure to remove the cover when installation is
complete.
!
!
!
Small Rooftop Units
3 to 12.5 Tons (48/50LC 14 Not Included)
Accessory Ultra Low Leak
Vertical Economizer Accessory
!
IMPORTANT: These economizers meet all economizer
damper requirements as specied in ASHRAE 90.1, IECC
and California’s Title 24. Economizer must be installed square
to avoid damper leakage or damper binding. Squareness
tolerance is ± 1/32 inch.
IMPORTANT: Read these instructions completely before
attempting to install accessory economizer.
2
Since 1965
MicroMetl
Table 1 - Carrier Usage Chart
Table 2 - Bryant Usage Chart
Table 3 - ICP Usage Chart
Table 4 - Package Contents
ECONOMIZER
PART NUMBER QTY CONTENTS
ECD-SRT12CA-D2*H,
ECD-SRT34CA-D2*H
1Economizer Damper Assembly with
Actuator and Outside Air Sensor
1Jade 9901-2020 (HW: W7220) Controller
with Attached Harness*
19901-2021 (HW: C7250) Mixed Air Temp
Sensor*
19962-0407-SAOEXT 4-Wire Harness*
1Hood Assembly with Top and 2 Sides
1Hood Divider
1Aluminum Filter
1Hardware Bag*
ECD-SRT05CA-D2*H
1Economizer Damper Assembly with
Actuator and Outside Air Sensor
1Jade 9901-2020 (HW: W7220) Controller
with Attached Harness*
19901-2021 (HW: C7250) Mixed Air Temp
Sensor*
19962-0407-SAOEXT 4-Wire Harness*
1Hood Assembly with Top and 2 Sides
1Hood Divider
1Hood Filter Divider
2Aluminum Filter
1Hardware Bag*
CARRIER MODEL NUMBER ECONOMIZER
PART NUMBER
Small Cabinet
48/50HC, LC 04-06
48/50TC 04-07
50TCQ 04-07
50HCQ 04-06
50KCQ04-06
48/50KC 04-06
Dry Bulb OA Sensor =
ECD-SRT12CA-D2DH
Enthalpy OA Sensor =
ECD-SRT12CA-D2EH
Large Cabinet
48/050HC 07-12
48/50LC 07
48/50TC 08-14
50TCQ 08-12
50HCQ 07-09
Dry Bulb OA Sensor =
ECD-SRT34CA-D2DH
Enthalpy OA Sensor =
ECD-SRT34CA-D2EH
Extra Large Cabinet
48/50HC 14
48/50LC 08-12
48/50TC 16
50TCQ 14
50HCQ 12
Dry Bulb OA Sensor =
ECD-SRT05CA-D2DH
Enthalpy OA Sensor =
ECD-SRT05CA-D2EH
BRYANT MODEL NUMBER ECONOMIZER
PART NUMBER
Small Cabinet
581J/551J 04-06
549J/547J/559J/582J 04-06
548J/580J/558J 04-07
Dry Bulb OA Sensor =
ECD-SRT12CA-D2DH
Enthalpy OA Sensor =
ECD-SRT12CA-D2EH
Large Cabinet
581J/551J 07-12
580J/558J 08-14
548J 08-12
549J 07-09
Dry Bulb OA Sensor =
ECD-SRT34CA-D2DH
Enthalpy OA Sensor =
ECD-SRT34CA-D2EH
Extra Large Cabinet
581J/551J 14
580J/558J 16
548J 14
549J 12
Dry Bulb OA Sensor =
ECD-SRT05CA-D2DH
Enthalpy OA Sensor =
ECD-SRT05CA-D2EH
ICP MODEL NUMBER ECONOMIZER
PART NUMBER
Small Cabinet
RGH/RAH 036-060
RGS/RAS 036-072
RHS 036-072
RHX/RHH 036-060
RGX/RAX 036-060
Dry Bulb OA Sensor =
ECD-SRT12CA-D2DH
Enthalpy OA Sensor =
ECD-SRT12CA-D2EH
Large Cabinet
RGH/RAH 072-120
RAS/RGS 090-150
RHH 072-102
RHS 090-120
Dry Bulb OA Sensor =
ECD-SRT34CA-D2DH
Enthalpy OA Sensor =
ECD-SRT34CA-D2EH
Extra Large Cabinet
RGH/RAH 150
RAS/RGS 180
RHS 150
RHH 120
Dry Bulb OA Sensor =
ECD-SRT05CA-D2DH
Enthalpy OA Sensor =
ECD-SRT05CA-D2EH
Table 5 - Economizer Sensor Usage
APPLICATION ECONOMIZER WITH OUTDOOR AIR SENSOR
Accessories Required
Outdoor Air
Dry Bulb
The 9901-2021 (C7250) outdoor air dry bulb sensor is
factory installed on "D2DH" economizer.
Single
Enthalpy
The 9901-2022 (C7400S) outdoor air enthalpy sensor is
factory installed on "D2EH" economizers
Mixed Air
Sensor
9901-2021 (C7250) provided with economizer and eld
installed in blower compartment.
Dierential
Dry Bulb or
Enthalpy
9901-2022-DIFF JC2*
* Includes 9901-2022 sensor and wiring harness.
* Shipped in hardware kit for eld installation
HW = Honeywell
On some models the 9962-0407-SAOEXT harness is built in to the
standard harness attached to the controller.
1
1
1
3
Since 1965
MicroMetl
ACCESSORIES LIST - The Economizer system has several
eld-installed accessories available to optimize performance. Refer
to Table 6 for authorized parts and power exhaust descriptions.
Fig. 1 - Economizer Component Locations —
(ECD-SRT12CA-D2*H Shown)
Outside Air
Sensor
(In Operating
Position)
Actuator Economizer
Wiring Harness
Outside
Air Damper
Outside Air Sensor
(In Shipping Position)
Barometric Relief
Dampers
Table 6 —Economizer Field-Installed
Accessories
DESCRIPTION PART NUMBER
208/230v 1PH Prop Power Exhaust for Small
Cabinet PPD-SRT12CA-D-1V
460v 3PH Prop Power Exhaust for Small
Cabinet PPD-SRT12CA-D-4V
208/230v 1PH Prop Power Exhaust for Large
Cabinet PPD-SRT34CA-D-1V
460v 3PH Prop Power Exhaust for Large
Cabinet PPD-SRT34CA-D-4V
208/230v 1PH Prop Power Exhaust for Extra
Large Cabinet PPD-SRT05CA-D-1V
460v 3PH Prop Power Exhaust for Extra Large
Cabinet PPD-SRT05CA-D-4V
Enthalpy Sensor (OA) 9901-2022
Dierential (Return) Sensor 9901-2022-DIFF JC2
Economizer Angle Seal Kit for use on unit's
with Hinged Filter Door - for Small Cabinet 0640-0100-HDANGL
Economizer Angle Seal Kit for use on unit's
with Hinged Filter Door - for Large Cabinet 0640-0200-HDANGL
Economizer Angle Seal Kit for use on unit's
with Hinged Filter Door - for Extra Large
Cabinet
0640-0300-HDANGL
Compliance — Economizers meet California Energy
Commission Title 24 prescriptive section 140.4 (damper leakage
etc.), and mandatory section 120.2.i for Fault Detection and
Diagnostic controls.
Economizers meet ASHRAE 90.1 damper leakage requirements
and Fault Detection and Diagnostic requirements.
Economizers meet IECC damper leakage and Fault Detection and
Diagnostic requirements.
NOTE: IECC requires dierential return air sensor, which must be
ordered separately. See Accessory 9901-2022-DIFF JC2.
Outside air, return air, and relief dampers are AMCA rated.
Fig. 2 - Typical Access Panel Locations
Compressor
Access Panel
Outdoor-Air Opening and
Indoor Coil Access Panel
Filter Access Panel
INSTALLATION
Note: If installing economizer on 48/50LC 07-12 units, see
special section beginning on page 10.
Step 1: Turn o power supply(s) and install lockout tag.
Step 2: Remove the existing unit lter access panel. Raise the
panel and swing the bottom outward. The panel is now disengaged
from the track and can be removed. See Figure 2. Set the lter door
aside for re-installation later.
Step 3: Remove the indoor coil access panel and discard. See
Figure 2.
Step 4: Slide the economizer assembly into the rooftop unit. See
Figure 3.
Fig. 3 - Economizer Installed on HVAC Unit
(ECD-SRT12CA-D2*H Shown)
HVAC Unit Filters
Insert
Screw in
Economizer
Flanges
Wiring
Harness
Economizer
Note: on small and large cabinets be sure to engage the rear
economizer ange under the tabs on the unit base in the return air
chamber. See Figure 4.
For 48/50LC 07-12 Instructions, see pages 10-12
4
Since 1965
MicroMetl
Step 5: Ensure economizer is square (tolerance +/- 1/32"). Screw
the economizer to the unit along both side anges and bottom
ange. See Figure 3.
Step 6: Remove the red tape securing the relief dampers for
shipping purposes. Relocate the outside air sensor from its shipping
location to its operating position, see Fig. 1
Step 7: If an economizer with a dry bulb sensor will be operating
with an enthalpy outside air sensor, remove the factory installed
9901-2021 dry bulb sensor from the front face of the economizer
(see Figure 1), and install the accessory enthalpy sensor 9901-
2022 in the same location as the dry bulb sensor. Connect the (2)
wire gray harness with plug from the economizer to the enthalpy
sensor. See wiring diagram Figures 23 and 28. Refer to "9901-
2022 Outside Air Enthalpy Sensor” section for more details on
enthalpy settings
Figure 5 – Connect Economizer Harness to Unit
PL6 Economizer Harness
Step 8: Remove and save the 12-pin jumper plug from the unit
economizer harness – located in the upper left corner of the unit.
Insert the economizer plug into the unit wiring harness. See Figure
5. Note: the 12-pin jumper plug should be saved for future use, in
the event that the economizer is ever removed. The jumper plug is
not needed as long as the economizer is installed.
Fig. 6 - Typical Indoor Fan Motor
Access Panel Locations
Indoor Blower
Access Panel
Unit Control
Box Panel(s)
Center Post
Step 10: In the hardware kit provided with the economizer is the
9901-2020 Jade controller (Honeywell W7220). The controller is
attached to a mounting bracket and the economizer harness is
attached to the controller. Mount the controller assembly on the
left side of the unit control box. Screw bracket to the control box
through pre-punched holes in control box. See Figure 7.
Figure 7 – Mount Controller Assembly in Unit
Control Box
(Some control box congurations may dier)
Step 11: Unplug the 10-pin female ECON plug currently connected
to the Central Terminal Board (CTB). See Figure 8.
Rooftop Unit’s
12-Pin Male Plug
Economizer
12-Pin Female Plug
For 48/50LC 07-12 Instructions, see pages 10-12
Fig. 4 - Rear Economizer Flange Installation
(ECD-SRT12CA-D2*H and ECD-SRT34CA-D2*H)
Unit Filter
Rack
Unit Base
Economizer
Hold Down Tab
Economizer Rear Flange
Economizer
Step 9: Remove the indoor blower access panel and the panel(s)
covering the unit control box. See Figure 6.
5
Since 1965
MicroMetl
Figure 8 – Unplug ECON plug from Central
Terminal Board (CTB)
For 48/50LC 07-12 Instructions, see pages 10-12
Step 12: Connect the 10-pin female ECON plug removed from the
CTB to the 10-pin male plug from the Jade controller harness. See
Figures 9 and 23.
Figure 9 – Connect 10-pin Plugs Together
Step 13: Connect the 10-pin female plug from the Jade controller
harness to ECON on the CTB. See Figures 10 and 23.
Figure 10 – Connect 10-Pin Jade Plug to
Central Terminal Board
Figure 11 – Connect Red and Brown Wires
to Central Terminal Board
Step 14: Connect the White wire from the Jade controller harness
to the W1 terminal on the CTB. See Figures 10 and 23.
Step 15: Connect the red and brown wires from the Jade controller
harness to the CTB. See Figures 11 and 23. The red wire connects
to “R” on the CTB, and the brown wire connects to “C”.
Central
Terminal
Board
White
Wire
10-Pin
Female
Plug from
Controller
Step 16: Locate the green wire with yellow stripe from the Jade
controller harness and screw it to the control box (ground). See
Figure 12 below.
Central
Terminal
Board
6
Since 1965
MicroMetl
Note :
On some models the 9962-0407-SAOEXT is built in to and is a
part of the standard harness attached to the Jade W7220 controller
terminals "MAT" and "OAT".
Figure 12 – Connect Ground Wire From Controller
Step 17: Locate the 9962-0407-SAOEXT harness (with 4-pin
female plug) provided in the economizer hardware kit. Connect the
9962-0407-SAOEXT harness to the 4-wire harness with a male
plug from the Jade controller harness. See Figures 13 and 23.
Important - See note below.
For 48/50LC 07-12 Instructions, see pages 10-12
Figure 13 – Connect 9962-0407-SAOEXT Harness
to Harness from Controller (See note )
Step 18: Route the 4-wire 9962-0407-SAOEXT harness through
the divider between the control box and the indoor blower section.
See Figure 14. Important - See note below.
Figure 14 – Route 9962-0407-SAOEXT Harness
to Indoor Blower Section (See note below)
(Some control box congurations may dier)
Step 19: Screw the 9901-2021 mixed air (MAT) sensor (Honeywell
C7250) to the left side edge of indoor blower through pre-
punched holes, see Figure 15. Conrm that the screws do not
interfere with blower rotation. Connect the 2-pin plug from the
9962-0407-SAOEXT harness to the MAT sensor. See Figures 15
and 23. Important - See note below.
Figure 15 – Mount and connect Mixed Air Sensor
4-Pin Male Plug
from Controller
Control
Box
9962-0407-SAOEXT
Harness (See note below)
Indoor
Blower
Section
9962-0407-SAOEXT
Harness (See note )
Brown and Orange wire from
9962-0407-SAOEXT (See note below)
Indoor blower
Mixed Air
Temperature
Sensor 9901-2021
A
A
A
A
A
A
A
A
A
7
Since 1965
MicroMetl
Step 20: Connect the pink and violet wires from the 4-wire
9962-0407-SAOEXT harness to the pink and violet terminals in the
wire bundle in the indoor blower section. See Figures 16 and 23.
See note .
Figure 16 – Connect Pink and Violet Wires in
Indoor Blower Section
Step 21: If using dierential return sensor or DCV sensor install it
now. See installation details later in the instructions, and the wiring
diagram for further information.
Step 22: Assemble the economizer hood by screwing the hood
divider to the hood subassembly (top and sides). See Figure 17.
Note on the ECD-SRT05CA-D2*H there is also a center hood lter
divider – screw in place. See Figure 18.
Indoor
Blower
Pink and
Violet Wires From
9962-0407-SAOEXT
Harness
See note
For 48/50LC 07-12 Instructions, see pages 10-12
Figure 17 – Economizer Hood Assembly
ECONOMIZER P/N A B C D SHIP WT.
ECD-SRT12CA-D2*H 30.37” 17.43” 19.05” 29.5” 55 lb
ECD-SRT34CA-D2*H 40.37” 22.28” 24.48” 36.27” 80lb
ECD-SRT05CA-D2*H 52.92” 27.03” 33.41” 49.92” 98lb
NOTE: The ECD-SRT05CA-D2*H hood has 2 aluminum lters and a
hood lter divider that installs between the lters.
AB
CHood Top and
Side Assembly
Hood Divider
D
Figure 18 – Filter Divider on
ECD-SRT05CA-D2*H Hood
Step 23: Install aluminum lter(s) in economizer hood. Clips at top
of hood will hold lters in place. See Figure 19.
Hood Filter
Divider
Figure 19 – Fully Assembled Hood
Hood Top Filter Clip
Outside Air
Cleanable
Aluminum Filter
Barometric
Hood
Divider
Step 24: Install economizer hood over economizer. Screw hood in
place through pre-punched holes. Reinstall the unit’s lter access
door. See Figure 20. Re-install the Indoor blower access panel.
See Figure 6.
A
A
8
Since 1965
MicroMetl
Figure 20 – Install Economizer Hood and Unit
Filter Access Door
Figure 21 – Barometric Relief Flow Capacity
Figure 22 – Return Air Pressure Drop
Step 25: After powering controller, program the Jade W7220
controller per the instructions to follow. See Table 8 for summarized
controller set up instructions. After all settings have been made, re-
install the unit control box panel. See Figure 6.
Economizer performance charts are below. See base unit
installation manual to make adjustments to meet building ventilation
requirements.
Economizer
Hood
Filter Door
0
500
1000
1500
2000
2500
0 0.05 0.1 0.15 0.2 0.25 0.3
RELIEF FLOW (CFM)
RETURN DUCT STATIC PRESSURE (in. wg)
ECD-SRT12CA-D2*H
ECD-SRT34CA-D2*H
and
ECD-SRT05CA-D2*H
0
1000
2000
3000
4000
5000
6000
0 0.1 0.2 0.3 0.4
RETURN AIR FLOW (CFM)
RETURN DUCT STATIC PRESSURE DROP (in. wg)
ECD-SRT12CA-D2*H
ECD-SRT34CA-D2*H
ECD-SRT05CA-D2*H
For 48/50LC 07-12 Instructions, see pages 10-12
9
Since 1965
MicroMetl
Mixed Air Sensor
Field Mount on
Indoor Blower
1
9901-2021
HONEYWELL C7250
Dry Bulb
Outside Air
Sensor
12-Pin Female
Plug from Economizer
Economizer
Harness
In Unit
BLU
BLK
GRA
GRA
GRA
GRA
PNK PNK
BLU
BLK
PNK
GRA
GRA
GRA
RED
PNK
ORG
BRN
YEL
VIO VIO VIO
ORG ORG
BRN BRN
6
7
2
3
10
11
5
1
12
9
4
8
RED
ORG
Economizer
Actuator
1
2
3
4
9901-2022
1
2
1
Enthalpy Outside
Air Sensor (C7400S)
To Optional
Power Exhaust
PL6
Plug 12-Pin Male
Plug in Unit
9962-0407-SAOEXT
Harness with
4-Pin Female Plug 4-Pin Male
Plug
10-Pin Male
Plug
PNK
BLU
BLK
GRA
GRA
RED “R” ON CTB
ORG
BRN
YEL
“C” ON CTB
BLU
BLK
GRN / YEL
WHT
BLU
GRA
ORG
YEL
BLK
BRN
RED
VIO
1
1
2
2
3
3
4
10
6
4
5
9
1
3
8
2
7
1
2
3
4
5
6
7
8
9
10
4
9
3
8
10
2
6
7
5
1
4
10-Pin Female
Plug Disconnected
from CTB CO2
(Optional)
Ground
“W1” on CTB
W7220 JADE
Controller.
Field Mounted in
Unit Control Box
MAT
MAT
OAT
OAT
ACT 24V
ACT COM
S-BUS
S-BUS
EXH1
IAQ COM
ACT 2-10
AUX1 OUT
IAQ 2-10
E-GRD
AUX2 IN
Y1 IN
Y1 OUT
Y2 OUT
Y2 IN
OCC
C
R
10-Pin Female
Plug Connects to
ECON on
Central Terminal
Board
BRN
YEL
Either the OAT or the Enthalpy
Sensor can be used but not both.
Refer to Figures 33 and 34 for Remote
Fault Detection and Diagnostic Monitoring.
LEGEND
3
4
Refer to Figure 31 for wiring optional
Differential Return Air Sensor kit.
On some models there is a separate
9962-0407-SAOEXT harness and on
other models these 4 wires are a part
of the standard harness attached to
Jade W7220 controller.
ECONOMIZER RETURN CHAMBER
INDOOR BLOWER SECTION UNIT CONTROL BOX COMPARTMENT
DA
RA
OA
1 2 3
S-Bus
Temp & Humidity
HH57AC081
S-Bus
CTB: Central Terminal Board
MAT: Mixed Air Temperature Sensor
OAT: Outside Air Temperature Sensor
9901-2021
HONEYWELL C7250
4
Figure 23 – Typical Economizer Wiring Diagram for 1 or 2 Speed Units
(Not for 48/50LC 07-12 Units)
10
Since 1965
MicroMetl
Step LC1. Follow steps 1 through 10 earlier in these instructions.
Step LC2. The 48/50LC 07-12 units require dierent wiring than
is factory-attached to the W7220 Jade controller. Disconnect the
complete wiring harness factory-attached to the W7220 Jade
controller, as shown below in Figure 24. Set this harness aside as
a small section may be used for LC units, see Figure 27.
Instructions for 48/50LC 07-12 Units Only
Important: This page is for economizer installation instructions on 48/50LC 07-12 units only.
Figure 24 – Remove Complete Harness Factory-
Attached to W7220 Controller
Figure 24A – 9962-0407-SAOEXT Not Used on
48/50LC 07-12 Units
Note: The complete 4-wire 9962-0407-SAOEXT harness provided
with the economizer will also NOT be used on the 48/50LC07-12
units, see Figure 24A. However, a small section may be used for
the MAT, see Figure 27.
Step LC3. The 48/50LC 07-12 units that do not have a factory-
installed economizer will have a new Jade W7220 controller wiring
harness shipped in the control box section of the HVAC unit. This
harness, Carrier part number 48LCHSRADH—A00, is shown
below in Figure 25 and 26.
Figure 25 – 48LCHSRADH--A00 W7220 Controller Harness Shipped With 48/50LC 07-12 Units
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Since 1965
MicroMetl
Figure 26 – Photo of 48LCHSRADH--A00 W7220
Controller Harness Shipped With 48/50LC 07-12
Units
Figure 27 - Use Part of 9962-0407-SAOEXT Harness for MAT Sensor on LC Units
Step LC4. The connectors on the right side of Figure 25 on
the 48LCHSRADH—A00 harness attach to the Jade W7220
controller installed in the unit control box. See Figures 25 and 28.
48LCHSRADH—A00 harness connectors are labeled to easily
identify the plug-in location on the controller.
Step LC5. Locate the Compressor Staging Control (CSC) board
in the HVAC unit. When a eld-installed economizer is used the J5
jumper on the CSC must be removed. Remove the J5 jumper. See
Figure 28
Step LC6. The connectors on the left side of Figure 25 on the
48LCHSRADH—A00 harness attach to the unit’s CSC board.
Connect J3 and J5 plugs to the CSC board.
Step LC7. Screw the green wire with yellow stripe in the
48LCHSRADH—A00 harness to the control box (ground). See
Figures 12 and 28.
Step LC8. Mount the provided 9901-2021 mixed air temperature
(MAT) sensor (C7250) to the indoor blower. Conrm that the screws
do not interfere with blower rotation. See Figure 15.
IMPORTANT:
The brown and orange wires in the indoor blower section for the
mixed air sensor have spade terminals, and will not connect directly
to the MAT sensor, which requires a 2-pin plug.
Some Economizer Models:
Locate brown and orange MAT wires on the 9962-0407-SAOEXT
harness, see Figure 15. Cut the orange and brown leading to the
2-pin MAT plug. Splice these 2 wires to the brown and orange wires
in the indoor blower section. Connect the 2-pin plug to the mixed air
sensor, see Figures 27 and 28.
Other Economizer Models:
Locate the brown and orange wire on the original Jade harness,
see Figure 27. Disconnect the terminals on the brown and orange
MAT wires, see Figure 27. Connect these terminals to the brown
and orange wires factory installed in the blower section. Connect
the 2-pin plug to the mixed air sensor, see Figure 28.
Step LC9. Follow steps 21 through 25 earlier in instructions.
Instructions for 48/50LC 07-12 Units Only
Important: This page is for economizer installation instructions on 48/50LC 07-12 units only.
2-Pin Plug
to MAT
BRN
ORG
BRN
ORG
Disconnect Terminals
or Cut and Splice
Use This Section
on LC Units for
Mixed Air Sensor
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Since 1965
MicroMetl
Figure 28 - Typical Wiring Diagram For 48/50LC 07-12 Units
NOTES:
1. Harness shown in bold is 48LCHSRADH--A00 harness, which
is shipped in the control box of 48/50LC 07-12 units and must
be eld connected to the W7220 controller provided with the
economizer.
2. Harness attached to the W7220 controller from the Carrier
factory is removed and not used with 48/50LC 07-12 units
Instructions for 48/50LC 07-12 Units Only
Important: This page is for economizer installation instructions on 48/50LC 07-12 units only.
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Economizing
Figure 29 – Enthalpy Curve Boundaries
9901-2022 SINGLE OUTSIDE AIR ENTHALPY
SENSOR
When using the 9901-2022 (Honeywell C7400S) enthalpy sensor
(See Figure 30) for outside air changeover, the existing 9901-2021
(Honeywell C7250) dry bulb sensor must be removed if applicable.
See Figure 1. When the enthalpy sensor’s OA temperature,
enthalpy and dew point are below the respective setpoints, the
outside air can be used for free-cooling. When any of these is
above the setpoint, free-cooling will not be available. Figure 29
shows the enthalpy boundaries in the W7220 Jade controller.
There are (5) enthalpy boundaries (setpoints ES1 thru ES5), which
are dened by dry bulb temperature, enthalpy, and dew point. ES3
is the default setting. Table 7 shows the High Limit Curves for each
setting. Important: to use the 9901-2022 sensor for outside air
sensor, the dipswitches on the sensor must be set to OFF-OFF-
OFF. See Table 8.
The (2) gray wires with a plug from the economizer harness in the
return chamber plug directly into the 9901-2022 enthalpy sensor.
See Figures 23 and 28 for wiring.
Table 7 – Single Enthalpy and Dual Enthalpy High Limit Curves
ENTHALPY
CURVE
TEMP. DRY
BULB (F)
TEMP.
DEWPOINT (F)
ENTHALPY
(btu/lb/da)
POINT P1 POINT P2
TEMP. (F) HUMIDITY
(%RH) TEMP. (F) HUMIDITY
(%RH)
ES1 80 60 28.0 80 36.8 66.3 80.1
ES2 75 57 26.0 75 39.6 63.3 80.0
ES3 70 54 34.0 70 42.3 59.7 81.4
ES4 65 51 22.0 65 44.8 55.7 84.2
ES5 60 48 20.0 60 46.9 51.3 88.5
HL 86 66 32.4 86 38.9 72.4 80.3
Figure 30 - 9901-2022 (C7400S) Dimensional,
connection and switching information
Table 8 – 9901-2022 Sensor Dip Switch Settings
USE DIP SWITCH POSITIONS FOR SWITCHES 1, 2, AND 3
1 2 3
DA OFF ON OFF
RA ON OFF OFF
OA OFF OFF OFF
DA - Discharge Air (not used on economizer)
RA - Return Air
OA - Outside Air
Default Setting = OFF-OFF-OFF
DA
RA
OA
1 2 3
S-Bus
Temp & Humidity
9901-2022
4-1/4
2-3/4
2-1/64
S-Bus
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INSTALLING DIFFERENTIAL RETURN AIR
SENSOR
The 9901-2022-DIFF JC2 dierential return sensor kit must be
eld mounted in the system’s return duct work. The kit includes a
wiring harness, that connects the economizer harness in the return
chamber of the unit, to the provided 9901-2022 sensor. Wire per
Figure 31.
In addition to using the 9901-2022 (Honeywell C7400S) sensor
(See Figure 30) for a single enthalpy sensor, it can also be used as
a dierential return enthalpy or dry bulb sensor. Figure 29 shows
the dual enthalpy boundaries in the W7220 Jade controller. With
dual enthalpy The HIGH LIMIT boundary is ES1 when there are no
stages of mechanical cooling energized and HL (high limit) when
a compressor stage is energized. Table 7 shows the High Limit
Curves for each setting. Important: to use the 9901-2022 sensor for
dierential return air, the dipswitches on the sensor must be set to
ON-OFF-OFF. See Table 8.
When using the 9901-2022-DIFF JC2 dierential return enthalpy
or dry bulb temperature option, see Table 9 for California Title 24
setting requirements by region.
Figure 31 – Wiring Dierential Return Air Sensor
CALIFORNIA’S TITLE 24 HIGH TEMPERATURE
LIMIT SETTINGS
California’s Title 24 code requires a high temperature limit
setting for all dry bulb outside air economizer change over. The
temperatures vary by the region within California. See Table 9 for
high limit settings.
Table 9 – California Title 24 Regional High Limit
Dry Bulb Temperature Settings
12-Pin Female
Plug from Economizer
BLU
BLK
GRA GRA GRA
GRA GRA
GRA
GRA
PNK
VIO 6
7
2
3
10
11
5
1
12
9
4
8
RED
ORG
PL6
Plug 12-Pin Male
Plug in Unit
BRN
YEL
*9901-2022
Differential Return
Sensor. Field Mounted
in Return Duct
Wiring
Harness*
*Provided in
9901-2022-DIFF JC2 Kit
DEVICE TYPE* CLIMATE
ZONES
REQUIRED HIGH LIMIT
(ECONOMIZER OFF
WHEN):
DESCRIPTION
FIXED DRY BULB
1, 3, 5, 11-16 OAT exceeds 75°F
2, 4, 10 OAT exceeds 73°F
6, 8, 9 OAT exceeds 71°F
7OAT exceeds 69°F
DIFFERENTIAL
DRY BULB
1, 3, 5, 11-16 OAT exceeds RA Temp.
2, 4, 10 OAT exceeds -2°F
6, 8, 9 OAT exceeds -4°F
7 OAT exceeds -4°F
FIXED ENTHALPY†
+ FIXED DRY BULB ALL OAT exceeds 28 Btu/lb of
dry air or OAT exceeds 75°F
* Only the high limit control devices listed are allowed to be used and at the setpoints listed. Others
such as Dew Point, Fixed Enthalpy, Electronic Enthalpy, and Dierential Enthalpy Controls, may
not be used in any climate zone for compliance with Section 140.4(e)1 unless approval for use is
provided by the Energy Commission Executive Director.
† At altitudes substantially dierent than sea level, the Fixed Enthalpy limit value shall be set to
the enthalpy value at 75°F and 50% relative humidity. As an example, at approximately 6,000 foot
elevation, the xed enthalpy limit is approximately 30.7 Btu/lb.
DEMAND CONTROL VENTILATION
Refer to economizer wiring diagram Figures 23 and 28 and DCV
instructions if demand control ventilation (CO2 sensor) is used.
CO2 sensor will wire into the blue and black connections at the
Jade controller as shown in Figures 23, 28 and 32. If a eld installed
CO2 sensor is connected to the economizer controller, a demand
controlled ventilation strategy will operate automatically. As the CO2
level in the space increases above the setpoint (on the economizer
controller), the minimum position of the dampers will be increased
proportionally, until the Maximum Ventilation setting is reached. As
the space CO2 level decreases because of the increase in fresh
air, the outdoor damper will follow the higher demand condition
from the DCV mode or from the free cooling mode.
Figure 32 – CO2 wiring connections to Jade
controller
Black Wire
IAQ 2-10 Vdc
Blue Wire
IAQ COM
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MicroMetl
MAT
JADE Setting: Under the “System Setup” menu, set AUX1-OUT to
“SYS” which will close JADE relay on fault detection
Examples of annunciator lights
would include these Grainger lights:
- Item #20C841
- Item #20C846
*Light solution cannot exceed 1.5A steady state @ 30VAC and
7.5A inrush at 30VAC
AUC2-1
OCC
E-GND
EXH1
AUX1-0
Y21
Y2O
Y1I
Y1O
C
IAQ COM
IAQ (2-10V)
IAQ 24V
ACT (2-10V)
ACT COM
ACT 24V
MAT
OAT
OAT
To “C” Terminal
To “AUX1-0” Terminal
Annunciator Light*
REMOTE (DOWNSTAIRS) MONITORING OF
CONTROLLER’S FAULT DETECTION AND
DIAGNOSTICS
Many codes including IECC, Title 24, and ASHRAE 90.1 require
that the economizer’s faults be accessible by operating or service
personal, or annunciated locally on zone thermostat. To setup
remote monitoring on the controller, under SYSTEM SETUP,
AUX1-OUT must be set to SYS.
The latest versions of Honeywell’s TH8321WF or TH8321R
thermostats are options for meeting this requirement. Figure 33
shows an example of the thermostat wiring to the Jade controller.
Follow instructions provided with Honeywell thermostat.
Figure 33 – Thermostat Wired For Remote FDD
W7220 Economizer Controller Module
Another option that is acceptable to some codes is an annunciator
light visible by service personnel. See Figure 34 for typical wiring
to the Jade controller. Refer to codes for proper labeling of light.
Figure 34 – Annunciator Light Wired for Remote FDD
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Since 1965
MicroMetl
Using the Keypad with Settings and Parameters
To use the keypad when working with Setpoints, System Setup
Advanced Settings, Checkout Tests and Alarms:
1. Navigate to the desire menu.
2. Press the (Enter) button to display the rst item in the
currently displayed menu.
3. Use the ▲ and ▼ buttons to scroll to the desired parameter.
4. Press the (Enter) button to display the value of the currently
displayed item.
5. Press the ▲ button to increase (change) the displayed
parameter value.
6. Press the ▼ button to decrease (change) the displayed
parameter value.
NOTE: When values are displayed, pressing and holding the ▲
or ▼ button causes the display to automatically increment.
7. Press the (Enter) button to accept the displayed value and
store it in nonvolatile RAM.
8. “CHANGE STORED” displays.
9. Press the (Enter) button to return to the current menu
parameter.
10. Press the ↑ (Menu Up/Exit) button to return to the previous
menu.
Menu Structure
Table 11 illustrates the complete hierarchy of menus and parameters
for the economizer system.
The Menus in display order are:
• STATUS
• SETPOINTS
• SYSTEM SETUP
• ADVANCED SETUP
• CHECKOUT
• ALARMS
W7220 ECONOMIZER
The economizer controller used on electro mechanical units is the
Honeywell W7220 which is to be located in the RTU base unit’s
Control Box. See Fig 35 for button description of the W7220
controller. The W7220 controller provide the following:
• 2-line LCD interface screen for setup, conguration and
troubleshooting.
• On-board fault detection and diagnostics
• Sensor failure loss of communications identication
• Automatic sensor detection
• Capabilities for use with multiple-speed indoor fan systems
Fig. 35 - W7220 Controller
IMPORTANT NOTE: The default setting on the W7220 controller
is for a “Fan Type” with 2 speed. If your unit is 1 speed, the
setting under SYSTEM SETUP > FAN TYPE must be changed
to 1 speed. NOTE: Some models' default may vary.
User Interface
The user interface consists of a LCD display and a 4-button keypad
on the front of the economizer controller.
Keypad
The four navigation buttons (see Figure 35) are used to scroll
through the menus and menu items, select menu items, and to
change parameter and conguration settings.
Using the Keypad with Menus
To use the keypad when working with menus:
• Press the ▲ (Up arrow) button to move to the previous menu.
• Press the ▼ (Down arrow) button to move to the next menu.
• Press the (Enter) button to display the rst item in the
currently displayed menu.
• Press the ↑ (Menu Up/Exit) button to exit a menu’s item and
return to the list of menus.
General Jade W7220 Controller and Sensor Information
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Since 1965
MicroMetl
PROGRAMMING THE JADE W7220
CONTROLLER
The next several pages detail the dierent status displays,
setpoints, setup, and alarms available on the controller. This list
below and Table 10 summarizes the inputs required for a standard
application with a single outside air sensor. NOTE: instead of
setting the SETPOINTS you can use the defaults already set in
the Jade controller – see default settings below. See Table 10 for
summerized standard settings or for more detail see Table 11 –
Menu Structure.
SETPOINTS
‒ MAT SET: this sets the mixed air temperature (MAT) setting.
The controller has a default of 53 degrees, but the range is
anywhere from 38 to 70 degrees F.
‒ LOW T LOCK: This setting locks out the compressor (or
mechanical cooling) at a given temperature. The default is 32
degrees F, but the controller’s range is from -45 to 80 degrees
F.
‒ DRYBULB SET: if you have an economizer with a dry bulb
outside air sensor you will see and set the DRYBULB SET. The
default setting is 63 degrees F but the controller’s range is 48
to 80 degrees F.
‒ ENTH CURVE: if you have a single enthalpy outside air sensor
instead of a dry bulb, you will see and set the ENTH CURVE
setting. There are 5 setting options: ES1 thru ES5. Check the
economizer literature for the limits for each of these settings.
ES3 is the default setting.
SYSTEM SETUP
‒ INSTALL: Allows you to set the current date. Use the keypad
buttons to scroll to the correct date.
‒ EQUIPMENT: Always set to CONV even if the unit is a heat
pump.
‒ AUX2 IN: Always set to W1.
‒ FAN TYPE: Set for either single or 2 speed. The default is 2
speed.
‒ AUX1 OUT: If remote Fault Detection and Diagnostic (FDD)
monitoring is required select SYS.
‒ OCC: occupancy, always set to INPUT
‒ MIN POS: The minimum position allows for ventilation even
when not in the free-cooling mode. If you have a single speed
unit there will be only one minimum position setting. The
default is 2.8 volts, but the range is 2-10Vdc.
o MIN POS H and MIN POS L: If your unit is 2 speed, there
will be 2 minimum position settings that show up on the menu.
The rst is MIN POS H (for high speed) which has a default of
2.8 volts. The second is MIN POS L (for low speed), which has
a default of 3.2. Note that MIN POS H and MIN POS L are only
displayed if under SYSTEM SETUP: AUX2 IN is set to “W1”,
and FAN TYPE is set to 2 speed.
FOR SINGLE SPEED UNIT FOR 2 SPEED UNITS
Controller Menu
Item Default Set To: Default Set To: Note
SETPOINTS
MAT SET 53°F 38° to 70°F 53°F 38° to 70°F
LOW T LOCK 32°F -45° to 80°F 32°F -45° to 80°F
DRYBLB SET 63°F 48° to 80°F 63°F 48° to 80°F Only displayed if using single DB OA sensor
ENTH CURVE ES3 ES1 to ES5 ES3 ES1 to ES5 Only displayed if using a single enthalpy OA sensor
MIN POS 2.8 Vdc 2 to 10 Vdc NA Only displayed if set up for single speed unit
MIN POS H NA NA 2.8 Vdc 2 to 10 Vdc Only displayed if set up for 2 speed unit
MIN POS L NA NA 3.2 Vdc 2 to 10 Vdc Only displayed if set up for 2 speed unit
SYSTEM SETUP
INSTALL 1/1/2010 Current date 1/1/2010 Current date
EQUIPMENT CONV CONV CONV CONV Always set to CONV, even on HP units
AUX2 I W1* W1 W1* W1 Always set to W1
FAN TYPE 2 speed* 1 speed 2 speed* 2 speed Default may vary on some models
AUX1 OUT NONE SYS NONE SYS Set to SYS for remote FDD monitoring
OCC INPUT INPUT INPUT INPUT Always set to INPUT
Table 10 - Standard Jade W7220 Controller Conguration
Note 1: For 2 speed unit, under SYSTEM SETUP: EQUIPMENT= CONV, AUX2 I = W1, and FAN TYPE = 2 SPEED
Note 2: More sophisticated controller setups, including for DCV or power exhaust, are available by referring to Table 11 options
NA = Not applicable
*Available on Firmware 1.15 June 2018 and later
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Since 1965
MicroMetl
Table 11 ─ Menu Structure*
Menu Parameter
Parameter
Default
Value
Parameter
Range and IncrementbNotes
STATUS
ECON AVAIL NO YES/NO ECONOMIZING AVAILABLE
YES = economizing available; the system can use outside air for free
cooling when required
ECONOMIZING NO YES/NO ECONOMIZING ACTIVE
YES = Outside air being used for 1st stage cooling.
NO = Economizing not active
OCCUPIED NO YES/NO OCCUPIED
YES = OCC signal received from space thermostat
or unitary controller.
YES = 24 Vac on terminal OCC.
NO = 0 Vac on terminal OCC
HEAT PUMP n/acCOOL
HEAT
HEAT PUMP MODE
(Not available on 2‒Speed conguration)
COOL Y1─IN OFF ON/OFF FIRST STAGE COOLING DEMAND (Y1---IN)
Y1‒I signal from space thermostat or unitary controller for Cooling Stage 1.
ON = 24 Vac on terminal Y1‒I
OFF = 0 Vac on terminal Y1‒I
COOL Y1─OUT OFF ON/OFF FIRST STAGE COOLING RELAY OUTPUT
ON = 24 Vac on terminal Y1‒O; Stage 1 mechanical cooling called on
OFF = 0 Vac on terminal Y1‒O; no mechanical cooling
COOL Y2─IN OFF ON/OFF SECOND STAGE COOLING DEMAND (Y2---IN)
Y2‒I signal from space thermostat or unitary controller for Cooling Stage 2.
ON = 24 Vac on terminal Y2‒I
OFF = 0 Vac on terminal Y2‒I
COOL Y2─OUT OFF ON/OFF SECOND STAGE COOLING RELAY OUTPUT
ON = 24 Vac on terminal Y2‒O; Stage 2 mechanical cooling called on
OFF = 0 Vac on terminal Y2‒O; no Stage 2 mechanical cooling
MA TEMP nn°F (or °C) 0 to 140°F
( -18 to 60°C)
MIXED AIR TEMPERATURE, Cooling Mode
Displays value of measured mixed/cooled air from MAT sensor in fan section.
Displays ‒ ‒.‒ if not connected, short or out‒of‒range.
DA TEMP nn°F (or °C) 0 to 140°F
( -18 to 60°C)
DISCHARGE AIR TEMPERATURE, after Heating section
(Accessory sensor required)
Displays when Discharge Air sensor is connected and displays measured
discharge temperature.
Displays ‒ ‒ ‒ ‒ ‒ ‒ if sensor sends invalid value, if not connected, short
or out‒of‒range.
OA TEMP nn°F (or °C) -40 to 140°F
( -40 to 60°C)
OUTSIDE AIR TEMPERATURE
Displays measured value of outdoor air temperature.
Displays ‒ ‒ ‒ ‒ ‒ if sensor sends invalid value, if not connected, short
or out‒of‒range.
OA HUM nn% 0 to 100% OUTSIDE AIR RELATIVE HUMIDITY
Displays measured value of outdoor humidity from accessory OA enthalpy sensor.
RA TEMP nn°F (or °C) 0 to 140°F
( -18 to 60°C)
RETURN AIR TEMPERATURE
(Accessory sensor required)
Displays measured value of return air temperature from return air sensor.
RA HUM nn% 0 to 100% RETURN AIR RELATIVE HUMIDITY
(Accessory enthalpy sensor required)
Displays measured value of return air humidity from return air sensor.
IN CO2 ___ppm 0 to 2000 ppm SPACE/RETURN AIR CO2
(CO2 sensor required, accessory or factory option)
Displays value of measured CO2 from CO2 sensor.
Invalid if not connected, short or out‒of‒range
DCV STATUS n/a ON/OFF DEMAND CONTROL VENTILATION STATUS
(CO2 sensor required, accessory or factory option)
Displays ON if IN CO2 value above setpoint DCV SET and OFF if below
setpoint DCV SET.
DAMPER OUT 2.0V 2.0 to 10.0V Displays voltage output to the damper actuator.
0% = OA Damper fully closed
100%= OA Damper full open
ACT POS nn% 0 to 100% Displays actual position of outdoor air damper actuator
2.0V = OA Damper fully‒closed
10.0V = OA Damper full open
ACT COUNT n/a 1 to 65535 Displays number of times actuator has cycled.
1 Cycle equals accrued 180° of actuator movement in any direction
ACTUATOR n/a OK/Alarm
(on Alarm menu)
Displays Error if voltage or torque is below actuator range
EXH1 OUT OFF ON/OFF EXHAUST STAGE 1 RELAY OUTPUT
Output of EXH1 terminal:
ON = relay closed
OFF = relay open
* Table 11 illustrates the complete hierarchy. your menu parameters may be different depending on your configuration.
Table of contents
