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23
Low Voltage Control Connections
Run the low-voltage control leads from the heater module(s)
— VIO and BRN (two of each if two modules are installed;
identify for Module #1) — to the 4-pole terminal board TB4
located on the heater bulkhead to the left of Heater #1. Connect
the VIO leads from Heater #1 and Heater #2 to terminal
TB4-1. Connect the BRN leads to terminal TB4-3. See Fig. 36.
Fig. 36 — Accessory Electric Heater Control
Connections
CONTROL AND POWER WIRING DIAGRAMS
Figures 37-44 are typical control and power wiring diagrams.
DEFRO
S
T
BOARD
ORN
BRN
Field
Connection
s
E-HEAT
P
3
-
3
3
1
ORN
BRN
VIO
BRN BRN
VIO
TB4
VIO
HR2
HR1
BRN
VIO
BRN
Elec Htr
HR1: On He
a
ter 1 in Po
s
ition #1
HR2: On He
a
ter 2 in Po
s
ition #2 (if in
s
t
a
lled)
Summary of Contents for 50HCQD07
Page 4: ...4 Fig 2 Unit Dimensional Drawing 07 08 Size Units ...
Page 5: ...5 Fig 2 Unit Dimensional Drawing 07 08 Size Units cont ...
Page 6: ...6 Fig 3 Unit Dimensional Drawing 09 Size Units ...
Page 7: ...7 Fig 3 Unit Dimensional Drawing 09 Size Units cont ...
Page 24: ...24 Fig 37 Electro Mechanical Control Wiring 50HCQ A07 D07 208 230v 460v 575v ...
Page 25: ...25 Fig 38 Electro Mechanical Control Wiring 50HCQ D07 Tier 2 1 Compressor 208 230v 460v 575v ...
Page 26: ...26 Fig 39 Electro Mechanical Control Wiring 50HCQ 08 09 208 230v 460v 575v ...
Page 27: ...27 Fig 40 Electro Mechanical Power Wiring 50HCQ A07 D07 208 230v 460v 575v ...
Page 28: ...28 Fig 41 Electro Mechanical Power Wiring 50HCQ D07 Tier 2 1 Compressor 208 230v 460v 575v ...
Page 29: ...29 Fig 42 Electro Mechanical Power Wiring 50HCQ 08 09 208 230v 460v 575v ...
Page 30: ...30 Fig 43 PremierLink Wiring Schematic 50HCQ07 09 208 230v 460v 575v ...
Page 31: ...31 Fig 44 RTU Open System Control Wiring ...
Page 49: ......