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21
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. 35) 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 HUM terminal on the UCB (Unit Control Board).
Connect the other lead to the R terminal on the UCB. See
Fig. 38.
Fig. 38 — Humidistat Connections to UCB
Connecting 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). Connect
D1 to the R terminal on the UCB. Connect D2 to the
HUM terminal on the UCB. Refer to the installation
instructions included with the Carrier Edge
®
Pro Ther-
midistat device for more information.
TYPICAL UNIT WIRING DIAGRAMS
See Fig. 40 - 42 for examples of typical unit control and
power wiring diagrams. These wiring diagrams are mounted
on the inside of the unit control box cover.
Fig. 39 — Typical Rooftop Unit with Humidi-MiZer Adaptive Dehumidification System
and Edge
®
Pro Thermidistat Device
HUMIDISTAT
UNIT CONTROL
BOARD
THERMOSTAT
C
HUM
G
W2
W1
Y2
Y1
R
Rc
Rh
W1
G
Y2
C
O/W2/B
Y1
OAT
RRS
SRTN
HUM
D1
D2
V+
Vg
C
HUM
G
W2
W1
Y2
Y1
R
PROGRAMMABLE
THERMOSTAT
UNIT CONTROL BOARD
THERMOSTAT CONNECTIONS
Summary of Contents for WeatherMaker 48FC04-07
Page 4: ...4 Fig 2 Unit Dimensional Drawing 1018 ...
Page 5: ...5 Fig 2 Unit Dimensional Drawing cont 1018 ...
Page 6: ...6 Fig 2 Unit Dimensional Drawing cont 1018 ...
Page 24: ...24 T Fig 42 Typical 48FC 04 07 Power Wiring Diagram 208 230V Unit Shown ...
Page 26: ...26 Fig 45 Typical IGC Control Wiring Diagram UNIT CONTROL BOARD ...