47
basepan. Pull correctly rated high voltage and low voltage
through appropriate conduits. Connect the power conduit to the
internal disconnect (if unit is so equipped) or to the external
disconnect (through unit side panel). Remove one of the two
knockouts located on the bottom left side of the unit control
box. Use this hole for the control conduit.
Fig. 71 — Thru-the Base Option, Shipping Position
(Size 16)
Fig. 72 — Installing Thru-the Base Option (Size 16)
Units Without Thru-base Connections
1. Install power wiring conduit through side panel openings.
Install conduit between disconnect and control box.
2. Install power lines to terminal connections as shown in
Fig. 63.
Field Control Wiring
The 50TC-16D unit requires an external temperature control de-
vice. This device can be a thermostat (field-supplied) or a Pre-
mierLink™ controller (available as factory-installed option or as
field-installed accessory, for use on a Carrier Comfort Network
®
or as a stand alone control) or the RTU Open Controller for
Building Management Systems using non-CCN protocols (RTU
Open controller is available as a factory-installed option only).
Thermostat
Select a Carrier-approved accessory thermostat. When electric
heat is installed in the 50TC unit, the thermostat must be capa-
ble of energizing the G terminal (to energize the Indoor Fan
Contactor) whenever there is a space call for heat (energizing
the W1 terminal). The accessory thermostats listed on the unit
price pages can provide this signal but they are not configured
to enable this signal as shipped.
Install the accessory thermostat according to installation in-
structions included with the accessory.
Locate the thermostat accessory on a solid wall in the condi-
tioned space to sense average temperature in accordance with
the thermostat installation instructions.
If the thermostat contains a logic circuit requiring 24-v power,
use a thermostat cable or equivalent single leads of different
colors with minimum of seven leads. If the thermostat does not
require a 24-v source (no “C” connection required), use a ther-
mostat cable or equivalent with minimum of six leads. Check
the thermostat installation instructions for additional features
which might require additional conductors in the cable.
For wire runs up to 50 ft (15 m), use no. 18 AWG (American
Wire Gage) insulated wire (35°C minimum). For 50 to 75 ft
(15 to 23 m), use no. 16 AWG insulated wire (35°C minimum).
For over 75 ft (23 m), use no. 14 AWG insulated wire (35°C
minimum). All wire sizes larger than no. 18 AWG cannot be
directly connected to the thermostat and will require a junction
box and splice at the thermostat.
Fig. 73 — Typical Low-Voltage Control Connections
(Size 16)
Unit without Thru-Base Connection Kit
Pass the thermostat control wires through the bushing on the
unit end panel. Route the wire through the snap-in wire tie and
up to the web bushing near the control box. Route the wire
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. Using a connector at the control box to protect the
wire as it passes into the control box. Pull the wires over to the
terminal strip at the upper left corner of the Central Terminal
Board (CTB). Use the connector at the control box and the
wire tie to take up any slack in the thermostat wire to ensure
that it will not be damaged by contact with the condenser coil.
See Fig. 74.
NOTE: If thru-the-bottom connections accessory is used, refer to
the accessory installation instructions for information on routing
power and control wiring.
1
/
2
” ELECTRICAL
BULKHEAD
CONNECTOR
1
1
/
2
” ELECTRICAL
BULKHEAD
CONNECTOR
GASKET
CONNECTOR
PLATE
ASSEMBLY
X
C
G
W2
C
W2
G
W1
O/B/Y2
Y2
R
W1
R
Y1
Y1
T
H
E
R
M
O
S
T
A
T
(Note 1)
(Note 2)
Note 1: Typical multi-function marking. Follow manufacturer’s configuration
instructions to select Y2. Do not configure for O output.
Note 2: W2 connection not required on units without electric heating.
Field Wiring
Central
Terminal
Board
Typical
Thermostat
Connections
Summary of Contents for WeatherMaker 50TC07 Series
Page 4: ...4 Fig 2 Dimensional Drawing for Units Built on and After 4 15 19 Size 07 ...
Page 5: ...5 Fig 3 Dimensional Drawing for Units Built Prior to 4 15 19 Size 07 ...
Page 6: ...6 Fig 4 Corner Weights and Clearances Size 07 ...
Page 7: ...7 Fig 5 Base Rail Details Size 07 ...
Page 8: ...8 Fig 6 Thru the Base Charts Size 07 ...
Page 9: ...9 Fig 7 Unit Dimensional Drawing Size 08 09 12 ...
Page 10: ...10 Fig 7 Unit Dimensional Drawing Size 08 09 12 cont ...
Page 11: ...11 Fig 8 Unit Dimensional Drawing Size 14 ...
Page 12: ...12 Fig 8 Unit Dimensional Drawing Size 14 cont ...
Page 13: ...13 Fig 9 Unit Dimensional Drawing Size 16 Unit ...
Page 14: ...14 Fig 9 Unit Dimensional Drawing Size 16 Unit cont ...
Page 19: ...19 Fig 14 Roof Curb Details Size 16 Unit ...
Page 26: ...26 Fig 34 50TC 07 Control Wiring Diagram ...
Page 27: ...27 Fig 35 50TC 07 Power Wiring Diagram ...
Page 28: ...28 Fig 36 50TC M08 12 Control Wiring Diagram ...
Page 29: ...29 Fig 37 50TC D E Wiring Diagram 08 14 Size Units ...
Page 30: ...30 Fig 38 Single Stage Cooling without VFD Power Wiring Diagram Sizes 08 12 ...
Page 31: ...31 Fig 39 2 Stage Cooling with VFD Power Wiring Diagram Sizes 08 12 ...
Page 32: ...32 Fig 40 2 Stage Cooling with VFD Power Wiring Diagram Size 14 ...
Page 33: ...33 Fig 41 50TC 16 Wiring Diagram ...
Page 34: ...34 Fig 42 2 Stage Cooling with VFD Power Wiring Diagram Size 16 ...
Page 35: ...35 Fig 43 50TC 07 Units Wiring Diagram with Humidi MiZer System Option ...
Page 36: ...36 Fig 44 50TC 08 14 Units Wiring Diagram with Humidi MiZer System Option ...
Page 37: ...37 Fig 45 50TC 16 Wiring Diagram with Humidi MiZer System Option ...
Page 69: ...69 Fig 97 Typical PremierLink Control Wiring Diagram Size 07 Shown ...
Page 70: ...70 Fig 98 50TC M08 12 PremierLink Control Wiring Diagram ...
Page 71: ...71 Fig 99 Typical PremierLink Control Wiring Diagram Dual Compressor Sizes 08 12 shown ...
Page 72: ...72 Fig 100 Typical PremierLink Control Wiring Diagram with Humidi MiZer System Option ...
Page 73: ...73 Fig 101 Typical RTU Open Controller Wiring Diagram 50TC 07 Units ...
Page 74: ...74 Fig 102 50TC M08 12 RTU Open Controller Wiring Diagram ...
Page 75: ...75 Fig 103 Typical RTU Open Controller Wiring Diagram 50TC D E08 14 Units ...
Page 76: ...76 Fig 104 RTU Open Controller Wiring Diagram 50TC 16 Unit ...
Page 83: ...83 Fig 113 UltraTech Scroll Compressor ...
Page 84: ......
Page 85: ......