Humidi-Mizer; System Control Connections - Carrier WeatherMaster 48HC07-12 Installation Instructions Manual

Typical
Thermostat
Connections
C
G
W2
W1
O/B/Y2
(see Note)
Y1
R
Note : Typical multi-function marking. Follow manufacturer's configuration
instructions to select Y2.
Field Wiring
Fig. 34 — Typical Low-Voltage Control
Connections
RACEWAY
HOLE IN END PANEL (HIDDEN)
Fig. 35 — 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 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 dehumidifi-
cation control. The humidistat is normally used in applications
Central
Terminal
Board
X X
C C
G G
W2 W2
W1 W1
Y2 Y2
Y1 Y1
R
R
T–STAT
where a temperature control is already provided (units with
PremierLink™ 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. 35) 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. 38), 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. 35) 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. 39). 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
information.
Fig. 36 — Accessory Field-Installed Humidistat
Fig. 37 — Edge
22
® Pro Thermidistat device for more
% RELATIVE HUMIDITY
®
®
Pro Thermidistat