![background image](http://html.mh-extra.com/html/carrier/weathermaster-48hc14/weathermaster-48hc14_installation-instructions-manual_2560337028.webp)
28
Humidi-MiZer
®
System Control Connections
HUMIDI-MIZER — SPACE RH CONTROLLER
NOTE: The Humidi-MiZer system is a factory-installed option.
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 bushing in the unit’s louvered end panel (see
Fig. 47).
2. Route the cable through the snap-in wire tie and up to the
web bushing near the control box.
3. Feed the cable through the bushing and into the bottom
left side of the control box after removing one of the two
knockouts in the corner of the box. Use a connector to pro-
tect the cable as it enters the control box.
4. Use the connector and the wire tie to reduce any slack in
the humidistat cable to ensure that it will not be damaged
by contact with the condenser coil (see Fig. 47).
5. Use wire nuts to connect humidistat cable to two PINK
leads in the low-voltage wiring as shown in Fig. 53).
To connect the Thermidistat device (33CS2PPRH-01):
1. Route the Thermidistat multi-conductor thermostat cable
(field-supplied) through the bushing in the unit’s louvered
end panel (see Fig. 47).
2. Route the cable through the snap-in wire tie and up to the
web bushing near the control box
3. Feed the cable through the bushing and into the bottom
left side of the control box after removing one of the two
knockouts in the corner of the box. Use a connector to pro-
tect the cable as it enters the control box.
4. Use the connector and the wire tie to reduce any slack in
the thermostat cable to ensure that it will not be damaged
by contact with the condenser coil (see Fig. 47).
5. The Thermidistat has dry contacts at terminals D1 and D2 for
dehumidification operation (see Fig. 54). The dry contacts
must be wired between CTB terminal R and the PINK 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. 51 — Accessory Field-Installed Humidistat
Fig. 52 — Edge
®
Pro Thermidistat
% RELATIVE HUMIDITY
®
Summary of Contents for WeatherMaster 48HC14
Page 5: ...5 Fig 2 Unit Dimensional Drawing 14 Size Unit ...
Page 6: ...6 Fig 2 Unit Dimensional Drawing 14 Size Unit cont ...
Page 9: ...9 Fig 4 Roof Curb Details ...
Page 25: ...25 Fig 48 48HC 14 Controls Wiring Diagram 208 230 v 460 v 575 v ...
Page 26: ...26 Fig 49 48HC 14 Power Wiring Diagram 208 230 v 460 v ...
Page 27: ...27 Fig 50 48HC 14 Power Wiring Diagram 575 v ...
Page 29: ...29 Fig 53 Typical Humidi MiZer Adaptive Dehumidification System Humidistat Wiring ...
Page 44: ...44 Fig 62 48HC14 ComfortLink Control Wiring Diagram ...
Page 45: ...45 Fig 63 48HC14 ComfortLink Power Wiring Diagram ...
Page 46: ...46 Fig 64 48HC14 ComfortLink with Humidi MiZer Power Wiring Diagram ...