Carrier WeatherMaker 50TC07 Series - Page 50

50
Fig. 81 — Typical Component Location (Size 16)
Fig. 82 — Typical Access Panel Location (Size 16)
Fig. 83 — Typical Single Point Installation (Size 16)
Heater and Supplementary Fuses
When the unit MOCP device value exceeds 60-A, unit-mount-
ed supplementary fuses are required for each heater circuit.
These fuses are included in accessory single point boxes, with
power distribution and fuse blocks.
All fuses on 50TC-*16 units are 60-A. (Note that all heaters
are qualified for use with a 60-A fuse, regardless of actual
heater ampacity, so only 60-A fuses are necessary.)
Heater Low-Voltage Control Connections
One or two heaters can be installed in the unit. Use the wiring
procedure listed below for each heater as determined by the
number of stages in the heater.
Single Stage Heaters
Single-stage heaters will have an orange and a brown control
wire. Connect these to the orange and brown wires located on
TB4.
Two Stage Heaters
Two-stage heaters will have orange, purple, red and brown wires.
The orange and the purple ones are the control wires and the red
and brown wires feed the safety circuit. Connect both the orange
and the purple wires to the orange wire locations of TB4. Connect
the red and brown wires to red and brown wires on TB4. If more
than one heater is installed, repeat the wiring procedure for the
second heater. The 3 locations across the top of TB4 do allow a
switch to be installed in series with some of the heaters in order to
add additional heater control.
HEATER
MOUNTING
BRACKET
HEATER
MODULE
(LOCATION 2)
HEATER
MODULE
(LOCATION 1)
SINGLE POINT
BOX
MOUNTING
SCREW
SINGLE
POINT BOX
HEATER
COVERS
MANUAL RESET
LIMIT SWITCH
DISCONNECT
MOUNTING
LOCATION
A
L
LIE
D
P
A
M
O
DE
L
NO
.
ER
I
A
L
N
O.
C
O
R
P
.
11
13
21
23
O
D
2
2
.
2
3
1
2
3
ISTED
AIR
NDITIONING
UIP
ACCESS
346N
.
P
/ N
2
-
5
6
1
0
-
4
REV
1
1
1
3
2
1
2
3
CONTROL
BOX
BUSHING
SINGLE
POINT BOX
MOUNTING
SCREWS
FOAM
BUSHING
DRIP BOOT
BRACKET
MOUNTING
SCREWS
HEATER
RELAYS
POWER
WIRES
HEATER
MOUNTING
SCREWS