Carrier 16DF013-050 - Manual (Page 20)

LEGEND FOR WIRING DIAGRAMS (Fig. 18 - 23), Pages 20 - 25
3CI — Three-Character Indicator
20CCV — Concentration Control Valve Positioner
21CV — Burner Capacity Control Positioner
20DV — Dilution Valve
26CA — Fire Tube High-Temperature Switch
26EH — Burner Exhaust Gas High-Temperature Switch
26SP — Solution Pump High Motor Temperature Switch
51BF — Burner Blower Motor Overload Relay
51RP — Refrigerant Pump Overload Relay
51SP — Solution Pump Overload Relay
69CW 1,2 — Chilled Water and Cooling Water Flow Switches
86X
— Burner Safety Auxiliary Relay
88BF — Burner Blower Motor Starter
88CP — Cooling Water Pump Starter
88EP — Chilled/Hot Water Pump Starter
88CT — Cooling Tower Fan Starter
88RP — Refrigerant Pump Starter
88SP — Solution Pump Starter
AR1-8 — Machine Control Relays
BCB — Burner Control Box
BZ — Alarm Buzzer
C/H — Chiller/Heater
CX — Remote Control Auxiliary Relay*
CN1-10 — Wiring Cable Connectors
ET1,2 — Grounds
F0 — End-Contact Fuse
F1-5 — Enclosed Fuses
G1 — High-Stage Generator
GH — High-Stage Generator, High-Solution Level Switch
M1-3 — Three-Phase Motors
MCB1,2 — Main Circuit Breakers
MCP — Machine Control Panel
NF1,2 — Line Noise Filters
PB1 — Start Pushbutton
PB2 — Stop Pushbutton
PK1 — Main Circuit Board
PK2 — Input Terminal Circuit Board
PK3 — Output Terminal Circuit Board
RY1 — External Emergency Stop Auxiliary Relay
RY2-5 — Burner Safety Shutdown Auxiliary Relays
SK1-3 — Surge Suppressors
ST1 — Display Code Identification Sticker
SWR1,2 — Switching Regulators
T1 — Burner Safety Shutdown (‘‘Off’’ Delay Timer)
T3H, T4H — Temperature Sensors
TB
— Terminal Boards
TR1 — Transformer
TR2 — Direct Current Control Circuit Transformer
TR3 — Alternating Current Control Circuit Transformer
TS1 — Direct Current Power Supply (On/Off)
TS2-6 — Operation Switches
TX — Remote Control Circuit Auxiliary Relay*
Factory Wiring
Field Wiring
Optional Wiring
*CX, TX auxiliary relays for remote operation are optionally installed
signals.
NOTES:
1. BCB — installed in burner control box.
2. F — installed on chiller/heater.
Fig. 18 — Control Panel Power Wiring Schematic
20