Heat Anticipator Settings; Humidi-Mizer Control Connections; Humidi-Mizer - Space Rh Controller - Carrier WeatherExpert 48LC 04 Series Installation Instructions Manual

Typical
Thermostat
Connections
C
G
W2
W1
O/B/Y2
(Note 1) (Note 2)
Y1
R
Note 1: Typical multi-function marking. Follow manufacturer's configuration
Instructions to select Y2.
Note 2: Y2 to Y2 connection required for 2 stage cooling operation and when
integrated economizer function is desired.
Field Wiring
Fig. 44 — Low-Voltage Connections
UNIT WITHOUT THRU-BASE CONNECTION KIT
Pass the thermostat control wires through the hole provided in
the corner post; then feed the wires through the raceway built
into the corner post to the control box. Pull the wires over to
the terminal strip on the upper-left corner of the Controls Con-
nection Board. See Fig. 45.
RACEWAY
HOLE IN END PANEL (HIDDEN)
Fig. 45 — Field Control Raceway
Central
Terminal
Board
X
C
T
H
G
E
R
W2
M
O
W1
S
T
Y2
A
T
Y1
R
27
NOTE: If thru-the-bottom connections accessory is used, refer to
the accessory installation instructions for information on routing
power and control wiring.

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 Control Connections
NOTE: It is recommended the Auto-Changeover function of an
installed thermostat be enabled when used in conjunction with the
Humidi-MiZer Adaptive Dehumidification system.
HUMIDI-MIZER – SPACE RH CONTROLLER
The Humidi-MiZer dehumidification system requires a field-
supplied and field-installed space-relative humidity control de-
vice. This device may be a separate humidistat control (contact
closes on rise in space RH above control setpoint) or a combi-
nation thermostat-humidistat control device such as Carrier's
Edge ® Pro Thermidistat with isolated contact set for dehumidi-
fication control. The humidistat is normally used in applica-
tions where a temperature control is already provided (units
with SystemVu™ controls).
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. 45) 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. 48), connecting
PKN to PNK and PNK/BLK to PNK/BLK.
To connect the Thermidistat device (33CS2PPRH-03):
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. 45) 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. 52). 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 Car-
rier Edge Thermidistat device for more information.