D: Advanced Wiring - Honeywell TrueSTEAM Guide D'installation

D: Advanced Wiring

TrueSTEAM Wired to a Dedicated Fan/Blower
TrueIAQ
R 24V
1
C 24V
HUM
HUM
TrueSTEAM Wired to a Humidistat in a Zoned Application
1
Optional Air
Proving Switch
C G
R
W
Y
38
TrueSTEAM
Gen Purpose
SPST Relay
GF
Optional Air
Proving Switch
C C
C
R
20V Transformer
# AT120
TrueSTEAM
R
C
C
GF
HUM
HUM
R
GT
G
RH
W1/E
Y1
2
HZ432
Panel
TrueSTEAM nozzle must be inserted into
a dedicated duct box. Do not leave
Fan/Blower
#R8222
nozzle exposed.
min 250 CFM
120 VAC
• Requires 4-inch clearance from nozzle to
any duct surface.
Red
• Requires 24-inch open air space
downstream from nozzle.
• Install fan/blower on upstream end of
duct box.
L1 120 VAC L2
• Install a grille on downstream end of
M29637
duct box.
In TrueIAQ installer setup, set ISU #25 to 3.
1
• If air proving switch is used, set
TrueSTEAM DIP 4 down and DIP 5 up.
If air proving switch is used, set
1
TrueIAQ
TrueSTEAM DIP 4 down and DIP 5 up.
24V
Connect the thermostats, dampers,
2
24V
transformers, and sensor wires as shown
in the Truezone HZ432 panel instructions.
3 In TrueIAQ installer setup, set ISU #25
3
to 3.
M29638
TrueSTEAM Humidification System 69-2285EF—01