25
Fig. 37 — Typical Low-Voltage Control Connections
Fig. 38 — Field Control Wiring Raceway
HEAT ANTICIPATOR SETTINGS
Set heat anticipator settings at 0.14 amp for the first stage and
0.14 amp for second-stage heating, when available.
HUMIDI-MIZER
®
SYSTEM CONTROL CONNECTIONS
Humidi-MiZer — Space RH Controller
NOTE: The Humidi-MiZer system is a factory-installed option
which is only available for units equipped with belt-drive motors.
The Humidi-MiZer dehumidification system requires a field-
supplied and installed space relative humidity control device.
This device may be a separate humidistat control (contact clos-
es on rise in space RH above control setpoint) or a combination
thermostat-humidistat control device such as Carrier’s Edge
Pro Thermidistat with isolated contact set for dehumidification
control. The humidistat is normally used in applications where
a temperature control is already provided (units with Premier-
Link™ control).
To connect the Carrier humidistat (HL38MG029):
1. Route the humidistat 2-conductor cable (field-supplied)
through the hole provided in the unit corner post.
2. Feed wires through the raceway built into the corner post
(see Fig. 38) to the 24-v barrier located on the left side of
the control box. The raceway provides the UL-required
clearance between high-voltage and low-voltage wiring.
3. Use wire nuts to connect humidistat cable to the leads in
the low-voltage wiring (as shown in Fig. 41), connecting
PNK to PNK and PNK/BLK to PNK/BLK.
To connect the Thermidistat device (33CS2PPRH-01):
1. Route the Thermidistat multi-conductor thermostat cable
(field-supplied) through the hole provided in the unit cor-
ner post.
2. Feed wires through the raceway built into the corner post
(see Fig. 38) to the 24-v barrier located on the left side of
the control box. The raceway provides the UL-required
clearance between high-voltage and low-voltage wiring.
3. The Thermidistat has dry contacts at terminals D1 and D2
for dehumidification operation (see Fig. 42). The dry con-
tacts must be wired between CTB terminal R and the
PNK/BLK lead to the LTLO switch with field-supplied
wire nuts. Refer to the installation instructions included
with the Carrier Edge
®
Pro Thermidistat device for more
information.
Fig. 39 — Accessory Field-Installed Humidistat
Fig. 40 — Edge
®
Pro Thermidistat
Typical
Thermostat
Connections
Central
Terminal
Board
W1
Y2
Y1
R
W2
G
C
X
W1
Y2
Y1
R
W2
G
C
X
T–STAT
C
W2
G
W1
O/B/Y2
R
Y1
(see Note)
Note : Typical multi-function marking. Follow manufacturer’s configuration
instructions to select Y2.
Field Wiring
RACEWAY
HOLE IN END PANEL (HIDDEN)
% RELATIVE HUMIDITY
®
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