23
HUMIDI-MIZER
®
CONTROL CONNECTIONS
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). See Fig. 44.
The humidistat is normally used in applications where a tem
-
perature control is already provided (units with SystemVu™
control).
Fig. 44 —
Accessory Field-Installed Humidistat
Connecting 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. 43) to the 24v 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. Connect one of the leads from the 2-conductor cable to the
Y3 terminal on the SystemVu MBB (Main Base Board).
Connect the other lead to the R terminal on the MBB. See
Fig. 45.
Fig. 45 — Humidistat Connections to SystemVu™
Main Base Board
TYPICAL UNIT WIRING DIAGRAMS
See Fig. 46-48 for examples of typical unit control and power
wiring diagrams. These wiring diagrams are mounted on the
inside of the unit control box cover.
% RELATIVE HUMIDITY
HUMIDISTAT
SystemVu
Main Base Board
TB1
R
G
Y1
Y2
Y3
W1
W2
C
Summary of Contents for WeatherExpert 48JC04
Page 4: ...4 Fig 2 Unit Dimensional Drawing ...
Page 5: ...5 Fig 2 Unit Dimensional Drawing cont ...
Page 6: ...6 Fig 2 Unit Dimensional Drawing cont ...
Page 24: ...24 Fig 46 48JC 04 06 Control Wiring Diagram ...
Page 25: ...25 Fig 47 48JC 04 06 Power Wiring Diagram 208 230 460V Unit Shown ...
Page 26: ...26 Fig 48 48JC 04 06 Power Wiring Diagram 575V Unit Shown ...
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