Economizer Module Wiring Diagrams - Honeywell Home TH8110R1008/U Manual

Economizer Module Wiring Diagrams

Fig. 339. Economizer control with economizer fault alert using TH8321R without EIM.
Configure the TH8321R to control economizer (see settings for ISU 222).For the thermostat to economizer wiring other
than the U1 and A-L/A, see the other economizer diagrams in this section.
Wire a relay to one of the four sets of S terminals (as shown). Configure the RedLINK VisionPRO to control economizer (see
settings for ISU 222) and use a custom alert (see ISU settings 600, 617– 620). For the EIM to economizer wiring other than
the A-L/A and S contacts, see the other economizer diagrams in this section.
AUX2-1
OCC
E-GND
EXH1
AUX1-0
Y2-I
Y2-O
Y1-I
Y1-O
C
R
W7220 JADE
ECONOMIZER
FURNACE,
AIR-HANDLER,
OR RTU
C
R
AUX2-1
OCC
E-GND
EXH1
AUX1-0
Y2-I
Y2-O
Y1-I
Y1-O
C
R
W7220 JADE
ECONOMIZER
Fig. 340. Economizer control with custom alert when using an EIM.
FURNACE,
AIR-HANDLER,
OR RTU
R
C
U1
U1
R
RC
C
A-L/A
TH8321R
SUB-BASE
M36870
RELAY
A-L/A
REQUIRED
S1 (OR S2 OR S3 OR S4)
S1 (OR S2 OR S3 OR S4)
RC
RH
R
C
EIM
133
®
VISIONPRO 8000 WITH REDLINK™
M36871
68-0312—07