62-0331–03 - Jade™ Economizer Controller

62-0331–03 - Jade™ Economizer Controller
JADE™ Economizer Module
(MODEL W7220)
INSTALLATION INSTRUCTIONS
Inputs
A Mixed air (MA) analog sensor is required on all W7220
units; either an OA (Outdoor Air) sensor for dry bulb change
over or an OA Sylkbus sensor for outdoor enthalpy change
over is required in addition to the MA sensor. An additional
Return Air (RA) Sylkbus sensor can be added to the system
for differential enthalpy changeover.
DCV (CO2) Sensor (C7232): 2-10 Vdc control signal; minimum impedance >50k ohm.
Outputs
Actuator signal: 2-10 Vdc; minimum actuator impedance is
2k ohm
Exhaust fan and AUX: Contact closure (24 Vac)
This document describes wiring, power up, basic
troubleshooting, and common installation issues for the
JADE™ Economizer Module (Model W7220). For further
information on mounting and operation, refer to Honeywell
document 63-2700.
24 Vac Out: 100 VA Class 2 transformer
When Installing This Product
1.
BEFORE INSTALLATION
2.
Review the following before installing the The W7220:
3.
Electrical
4.
Read these instructions carefully. Failure to follow them
could damage the product or cause a hazardous condition.
Check ratings given in instructions and on the product to
ensure the product is suitable for your application.
Installer must be a trained, experienced service
technician.
After installation is complete, check out product
operation as provided in these instructions.
Rated Voltage: 20 to 30 Vac RMS; 50/60 Hz
Relay Contact Rating: 30 Vac
IMPORTANT
All inputs and outputs must be Class 2 wiring.
INSTALLATION AND SETUP
The Economizer module may be mounted in any orientation.
However, mounting in the orientation shown above permits
proper viewing of the LCD display and use of the keypad.
E4436
62-0331-03
JADE™ ECONOMIZER MODULE
WIRING
CAUTION
Equipment Damage Hazard.
Electrostatic discharge can short equipment
circuitry.
Ensure that you are properly grounded before
handling the unit.
All wiring must comply with applicable electrical codes and
ordinances, or as specified on installation wiring diagrams.
Module wiring in the field is terminated to the four screw
terminal blocks located on the left and right sides.
Module wiring at the OEM factory is terminated via the header
pin terminals located on the left and right sides. The header
terminal pins and the terminal blocks have common
terminations for the appropriate input or output. The part
number for the OEM female mating connector is 003997.
WARNING
Electrical Shock Hazard.
Can cause severe injury, death or property
damage.
Disconnect power supply before beginning wiring, or
making wiring connections, to prevent electrical shock
or equipment damage.
Each terminal can accommodate the following gauges of wire:
• Single wire – from 18 AWG to 22 AWG solid or stranded
• Multiple wires – up to two 22 AWG stranded
• For the 24 Vac connections: single wire – from 14 to 18
AWG solid or stranded
Refer to Fig. 1 through Fig. 4 on page 5 for common wiring
configurations.
1
ROOF TOP UNIT
MA TEMP
SENSOR
20K NTC
W7220 ECONOMIZER CONTROLLER MODULE
Y1
O/B
N
MA
MA
OAT
OAT
OA TEMP
SENSOR
20K NTC
CO2
SENSOR
2-10 VDC
(OPTIONAL)
W2
SD-O/B
OCC
E-GND
AUX
Y2I
IAQ (2-10V)
IAQ COM
IAQ 24V
Y2O
Y1I
ACT (2-10V)
ACT COM
ACT 24V
TR
Y1O
C R
24 VAC
2
TR1
IN
+
IN
-
M7215
(OPTIONAL COMMUNICATING DCA)
1
NOTE THAT THE C7250 20K NTC SENSOR CAN BE MOUNTED IN THE OAT ONLY IN THIS CONFIGURATION.
2
IF THE COMMUNICATING ACTUATOR IS USED, IT IS CONNECTED TO THE S-BUS TERMINALS USING
2-WIRE SYLKBUS WIRING.
THERMOSTAT
Fig. 1. Stand-alone dry bulb Economizer configuration with black motor M7215.
62-0331—03
G
W1
Y2
2
M28980
JADE™ ECONOMIZER MODULE
1
MA TEMP
SENSOR
20K NTC
ROOF TOP UNIT
W7220 ECONOMIZER CONTROLLER MODULE
N
MA
MA
OAT
OAT
OA TEMP
SENSOR
20K NTC
CO2
SENSOR
2-10 VDC
(OPTIONAL)
G
W1
Y1
O/B
Y2
W2
SD-O/B
OCC
E-GND
AUX
Y2I
IAQ (2-10V)
IAQ COM
IAQ 24V
ACT (2-10V)
ACT COM
ACT 24V
Y2O
Y1I
Y1O
C R
24 VAC
2
3
MS7503
(OPTIONAL COMMUNICATING DCA)
1
NOTE THAT THE C7250 20K NTC SENSOR CAN BE MOUNTED IN THE OAT ONLY IN THIS CONFIGURATION.
2
IF THE COMMUNICATING ACTUATOR IS USED, IT IS CONNECTED TO THE S-BUS TERMINALS USING
2-WIRE SYLKBUS WIRING.
THERMOSTAT
M32284
Fig. 2. Stand-alone dry-bulb Economizer configuration with Honeywell MS7503 Direct Coupled Actuator.
3
62-0331—03
JADE™ ECONOMIZER MODULE
1
MA TEMP
SENSOR
20K NTC
ROOF TOP UNIT
W7220 ECONOMIZER CONTROLLER MODULE
O/B
MA
MA
Y2
W2
SD-O/B
OCC
E-GND
S-BUS
AUX
S-BUS
CO2
SENSOR
2-10 VDC
(OPTIONAL)
G
W1
Y1
N
Y2I
IAQ (2-10V)
IAQ COM
IAQ 24V
Y2O
Y1I
ACT (2-10V)
ACT COM
ACT 24V
Y1O
C R
24 VAC
TR
2
TR1
IN
+
IN
-
M7215
(OPTIONAL COMMUNICATING DCA)
THERMOSTAT
OUTSIDE AIR
TEMP/HUMIDITY (ENTHALPY)
SYLKBUS SENSOR
1
DISCHARGE AIR
TEMP/HUMIDITY (ENTHALPY)
SYLKBUS SENSOR
1
IN THIS CONFIGURATION, THE MAT IS REQUIRED AND AN OPTIONAL DISCHARGE
AIR TEM/HUMIDITY (ENTHALPY) SYLKBUS SENSOR CAN BE ADDED FOR
ADVANCED CONTROL AS SHOWN IN THE LOWER LEFT OF THIS FIGURE.
2
IF THE COMMUNICATING ACTUATOR IS USED, IT IS CONNECTED TO THE S-BUS
TERMINALS USING 2-WIRE SYLKBUS WIRING.
M28979
Fig. 3. Economizer with Sylk Bus sensors for enthalpy configuration with Honeywell M7215 black motor.
62-0331—03
4
JADE™ ECONOMIZER MODULE
1
MA TEMP
SENSOR
20K NTC
ROOF TOP UNIT
W7220 ECONOMIZER CONTROLLER MODULE
O/B
Y1
N
MA
MA
W2
SD-O/B
OCC
E-GND
S-BUS
S-BUS
CO2
SENSOR
2-10 VDC
(OPTIONAL)
G
W1
Y2
AUX
Y2I
IAQ (2-10V)
IAQ COM
IAQ 24V
ACT (2-10V)
ACT COM
ACT 24V
Y2O
Y1I
Y1O
C R
MS7503
24 VAC
2
3
MS7503
(OPTIONAL COMMUNICATING DCA)
THERMOSTAT
OUTSIDE AIR
TEMP/HUMIDITY (ENTHALPY)
SYLKBUS SENSOR
1
DISCHARGE AIR
TEMP/HUMIDITY (ENTHALPY)
SYLKBUS SENSOR
1
IN THIS CONFIGURATION, THE MAT IS REQUIRED AND AN OPTIONAL DISCHARGE
AIR TEM/HUMIDITY (ENTHALPY) SYLKBUS SENSOR CAN BE ADDED FOR
ADVANCED CONTROL AS SHOWN IN THE LOWER LEFT OF THIS FIGURE.
2
IF THE COMMUNICATING ACTUATOR IS USED, IT IS CONNECTED TO THE S-BUS
TERMINALS USING 2-WIRE SYLKBUS WIRING.
M32285
Fig. 4. Economizer with Sylk Bus sensors for enthalpy configuration with a Honeywell MS7305 Direct Coupled Actuator.
5
62-0331—03
JADE™ ECONOMIZER MODULE
POWER UP
If one or more alarms are present and there has been no
keypad activity for at least 5 minutes, the Alarms menu
displays and cycles through the active alarms.
After the module is mounted and wired, apply power.
You can also navigate to the Alarms menu at any time.
Power Up Delay
Upon power up (or after a power outage or brownout), the
W7220 controller module begins a 5 minute power up delay
before enabling mechanical cooling.
Table 1. Alarms Menu.
Menu
ALARMS(_)
Alarm
MA T SENS ERR
Initial Menu Display
CO2 SENS ERR
On initial start up, Honeywell displays on the first line and
Economizer W7220 on the second line. After a brief pause,
the revision of the software appears on the first line and the
second line will be blank.
OA T SENS ERR
DA ENTHL ERR
SYS ALARMa
NOTES:
1.
Power Loss (Outage or Brownout)
All setpoints and advanced settings are restoreda after any
power loss or interruption.
2.
NOTE: If power goes below 18 Vac, the W7220 controller
module assumes a power loss and the 5 minute
power up delay will become functional when power
returns above 18 Vac.
a
TROUBLESHOOTING
The Alarms menu displays only when alarm(s)
are active and includes the number of active
alarms in parenthesis ().
The alarms listed are a few examples. Additional
alarms display depending on the parameter
settings and configuration.
When AUX is set to SYS and there is any alarm (e.g., failed sensors,
etc.), the AUX terminal has 24 Vac out and the LCD displays the SYS
ALARM.
Clearing Alarms
Power Loss (Outage or Brownout)
Once the alarm has been identified and the cause has been
removed (e.g. replaced faulty sensor), the alarm can be
cleared from the display.
NOTE: If power goes below 18 Vac, the W7220 controller
module assumes a power loss and the 5 minute
power up delay will become functional when power
returns above 18 Vac.
To clear an alarm, perform the following:
1. Navigate to the desired alarm.
2. Press the ↵ button.
3. ERASE? displays.
4. Press the ↵ button.
5. ALARM ERASED displays.
All setpoints and advanced settings are restoreda after any
power loss or interruption.
Alarms
6.
The Economizer module provides alarm messages that
display on the 2-line LCD.
NOTE: If an the alarm still exists after you clear it, it redisplays within 5 seconds.
NOTE: Upon power up, the module waits several seconds
before checking for alarms. This allows time for all
the configured devices (e.g. sensors, actuator) to
become operational.
a All
settings are stored in non-volatile flash memory.
62-0331—03
Press the
button (MenuUp/Exit) to complete the
action and return to the previous menu.
6
JADE™ ECONOMIZER MODULE
COMMON INSTALLATION ISSUES AND CONCERNS
Table 2. Installation Issues and Concerns.
Area
Configuration
Wiring
Operation or
Use
Issue or Concern
Possible Cause and Remedy
Are the old sensors in the
unit (C7400A, C7150 or
C7232) compatible with the
economizer controller?
No, the C7400A and C7150 sensors are not compatible with the W7220. The
enthalpy sensor for the W7220 is the C7400S. The Mixed Air or Outdoor air dry
bulb sensors are the C7250A. The C7232 CO2 sensor is compatible with the
W7220.
The unit has a W7459
economizer and black
motor. Do I need to change
the motor?
If you have a W7459 economizer with a M7415 motor you will need to change to a
M7215 motor. The W7220 has a 2 to 10 Vdc out to the motor, so you will need a
M7215 motor. The M7215 motors are used with the W7212 economizers. So if you
have one of these units, you will not have to change the motor.
I have 4 terminals on my
The economizer 24 Vac COM can be wired to the Honeywell actuator common
actuator and the wiring only (
or TR1). The actuators have internal ground circuits.
shows 3 wires.
There is an Earth Ground
terminal. Do I need to wire
to earth ground?
Yes, the economizer must be wired to earth ground.
What are the part numbers
of the 2 and 6 pin side
connectors?
The 2-pin connectors are Honeywell part number 50048926-001 and the 6-pin
connectors are Honeywell part number 50048926-002. Both are available in
accessory bags of 20 each.
My outdoor temperature
reading on the STATUS
menu is not accurate.
Check the sensor wiring. Enthalpy sensors are to be wired to the Sylk Bus
terminals. Temperature sensors are to be wired to the OAT and MAT terminals.
If my enthalpy sensor drifts The sensors are not able to be re-calibrated in the field. However there is a menu
in accuracy over time, can I item under the ADVANCED menu where you are able to input a limited offset in
re-calibrate it?
temperature and humidity for each sensor you have connected to the economizer.
Can I go back to factory
defaults and start over?
Under the SYSTEM SETUP menu you can change the setpoints to the factory
defaults.
Will I be able to see the LCD The LCD screen has a backlight that is always illuminated.
screen when it is in the unit?
What is a good setpoint for
the Mixed Air Temperature
(MAT)?
The mixed air temperature is the temperature of air that you want to supply to the
space. In a commercial building, this is between 50 to 55°F (10 to 13°C). The
mixed air is the mixing of the return air and the outdoor air.
I am using enthalpy
In the event the humidity sensor in the enthalpy sensors fails, the backup
sensors. Why did the control algorithm in the control is to default to the temperature sensor in the enthalpy
ask me to input a dry bulb
sensor.
changeover temperature?
In checkout, the outdoor
damper closes when I
command it open.
Check the actuator linkage or rotation. In the CHECKOUT mode, the outdoor
damper should drive open or closed with the return air damper having the opposite
effect.
How do I set my minimum
position?
The minimum position is set using the VENTMIN and VENTMAX setup in the
SETPOINTS menu. VENTMIN is the minimum ventilation required when using an
occupancy sensor and VENTMAX is the minimum ventilation when not using an
occupancy sensor for Demand Control Ventilation. The VENTMAX position is set
the same as with the potentiometer on the analog economizers and is the output
voltage to the damper actuator. The range is 2 Vdc closed OA damper and 10 Vdc
open OA damper.
What if my damper does not Check the damper linkage or hub to make sure the damper is able to close
go completely closed in the completely.
checkout operation?
How do I set the OCC?
There are two settings for the OCC setting, INPUT and ALWAYS. INPUT is from
the space thermostat, if it has an occupancy output. ALWAYS is the unit in the
occupied mode, if the economizer is powered (fan on).
Does the economizer save
my program values if the
unit loses power?
Yes, once the changes are stored in the controller they will be stored until they are
changed by the operator.
7
62-0331—03
JADE™ ECONOMIZER MODULE
Automation and Control Solutions
Honeywell International Inc.
1985 Douglas Drive North
Golden Valley, MN 55422
Honeywell Limited-Honeywell Limitée
35 Dynamic Drive
Toronto, Ontario M1V 4Z9
customer.honeywell.com
® U.S. Registered Trademark
© 2010 Honeywell International Inc.
62-0331—03 M.S. 11-10
Printed in U.S.A.
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