Honeywell TrueSTEAM Guia De Instalacion página 18

Installation Guide
WIRIng
Follow this diagram for a system with the VisionPRO IAQ
(humidification and fan call by thermostat).
D-1
R-2
C-3
B
VISIONPRO IAQ
24V
HVAC
24V
POWER
HUM
MASTER
HUM
C
GT
R
RT
GF
EXT
TrueSTEAM - INTERNAL
Follow this diagram if using a blower fan dedicated to the TrueSTEAM (a fan separate from the HVAC
equipment, as in hydronic or cooling-only applications).
HVAC
If AFS is used, ensure DIP 5
is in ON position.
69-2036EFS—07
EQUIPMENT INTERFACE MODULE (EIM)
1
2
3
C
R
RC
RH
H1
U
M2
D1
RECOMMENDED
H
AIR FLOW SWITCH
M2
(AFS)
V1
N
T2
R C
R8222
AT120
MECHANICAL
HUMIDISTAT
HUM
HUM
HAC
HAC
with operation dependent on HVAC power
TM
FAN
FURNACE BOARD
C
CONV. HP
HEAT 1 RELAY
W1 O/B
HEAT 2 RELAY
W2 AUX
HEAT 3 RELAY
W3 AUX2
COOL 1 RELAY
Y Y
COOL 2 RELAY
Y2 Y2
G
FAN RELAY
G G
M24761
120 VAC
24V
24V
RECOMMENDED
HUM
AIR FLOW SWITCH
HUM
(AFS)
L1
C
RED 120
GT
VAC
R
RT
L2
GF
EXT
BLACK
HUMIDISTAT
HUM
HUM
HAC
HAC
6
Set VisionPRO IAQ
TM
B
parameter 374 to 1. This
allows the thermostat to call
for fan at the same time as it
calls for humidification.
If AFS is not used, set DIP 4
ON and wire HUM terminals
only.
If AFS is used, set DIP 5 ON
and DIP 4 OFF and wire R, C,
and Hum terminals.
HVAC POWER MASTER
TrueSTEAM - INTERNAL
M24760
Remove Factory installed
jumper (R/RT)
ISU