Carrier 40QQ Series - Economizer Checkout and Wiring; Performing Checkout Tests; W7220 Economizer Module Wiring

25
Checkout Tests
Use the Checkout menu (see Table 6) to test the damper
operation and any configured outputs. Only items that are
configure d are shown in the Checkout menu.
NOTE: See User Int erface for information about menu
naviga tion and use of the keypa d.
To perform a Checkout test:
1. Scroll to the desired test in the Checkout menu using
the
and buttons.
2. Press the
button to select the item.
3. RUN? appears.
4. Press the
button to start the test.
5. The unit pauses and then displays IN PROGRESS.
6. When the test is complete, DONE appears.
7. When all desired parameters have been tested, press
the
(Menu up) button to end the test.
Checkout test can be performed at any time during the
operation of the system as a test that the system is
operable.
CAUTION
!
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in damage
to equipment.
Be sure to allow enough time for compressor startup
and shutdown between checkout tests so that you do
not short- cycle the compressors.
Setup and Configuration
W7220 Economizer Modu le Wiring
Use Fig. 30 and Tables 7 and 8 to locate the wiring
terminals for the economizer module.
NOTE: The four terminal blocks are removable. You can
slide out each terminal block, wire it, and then slide it
back into place.
NA
AUX2-
OCC
E-GND
EXH1
AUX1-O
Y2-
Y1-
Y2-O
Y1-O
C
R
50048848-002
Rev. A
NA
A2
EX
OCC
A1
Y2O
Y2I
Y1O
Y1I
C
R
Cert Product
HJW10
California Title 24, Part 6
www.energy.ca.gov
MAT
MAT
OAT
OAT
S-BUS
S-BUS
IAQ 2-10
IAQ COM
IAQ 24V
ACT 2-10
ACT 24V
ACT COM
MA
MA
OA
OA
SB
SB
SB
SB
SB
SB
V
C
R
NA
V
C
R
50040839-001
Rev. G
Fig. 31 - W7220 Economizer Module Terminal
Connection Labels
Table 8 – Economizer Module - Left Hand Terminal
Blocks
Label Type Descr iption
Top Left Terminal Block
MAT
20k NTC
and COM
Mixed Air Temperature Sensor
(Polarity insen sitive connections)
OAT 20k NTC
and COM
Outdoor Air Temperature Sensor
(Polarity insen sitive connections)
S- BUS S- BUS
(Sylk BUS)
Enthalpy Control S ensor
(Polarity insen sitive connections)
Bottom Left Terminal Block
IAQ 2- 10 2- 10 VDC Air Quality Sensor Input (e.g. CO2
sensor)
IAQ COM COM Air Quality Sensor Common
IAQ 24 24 VAC Air Quality Sensor 24 VAC Source
ACT 2- 10 2- 10 VDC Damper Actuator Output (2- 10
VDC)
ACT COM COM Damper Actuator Output Common
ACT 24 24 VAC Damper Actuator 24 VAC Source
40QQ