16
Remote (Downstairs) Monitoring of Controller’s
Fault Detection and Diagnostics
Many codes including IECC, Title 24, and ASHRAE 90.1 re-
quire 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 35
shows an example of the thermostat wiring to the Jade control-
ler. Follow instructions provided with Honeywell thermostat.
Another option that is acceptable to some codes is an annunci-
ator light visible by service personnel. See Fig. 36 for typical
wiring to the Jade controller. Refer to codes for proper labeling
of light.
Fig. 35 — Thermostat Wired for Remote FDD
Fig. 36 — Annunciator Light Wired for Remote FDD
C
R
AUX2-1
OCC
E-GND
EXH1
AUX1-0
Y2-I
Y2-O
Y1-I
Y1-O
C
R
W7220 JADE
ECONOMIZER
U1
U1
R
Rc
C
A-L/A
FURNACE, AIR HANDLER,
OR RTU
TH8321R OR
TH8321WF
SUB-BASE
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
AUC2-1
OCC
E-GND
EXH1
AUX1-0
Y21
Y2O
Y1I
Y1O
=CR
IAQ COM
IAQ (2-10V)
IAQ 24V
ACT (2-10V)
ACT COM
ACT 24V
MAT
OAT
OAT
T
O
“C”
T
E
RMINAL
T
O
“AUX1-0”
T
E
RMINAL
Annunciator Light*
W7220 Economizer Controller Module
