Installation - Electrical
42
General Recommendations
43
Installer-Supplied Components
48
Power Supply Wiring
48
Control Power Supply
48
Heater Power Supply
48
Water Pump Power Supply
48
Interconnecting Wiring
49
Chilled Water Flow (Pump) Interlock
49
Chilled Water Pump Control
49
Alarm and Status Relay Outputs
(Programmable Relays)
52
Low Voltage Wiring
54
External Emergency Stop
54
External Auto/Stop
54
External Circuit Lockout - Circuit 1 and Circuit 2
54
Ice Making Option
55
External Chilled Water Setpoint (CWS)
55
External Current Limit Setpoint (CLS)
56
Outdoor Air Temperature Sensor
56
Communication Card CSR
57
Communication link connection procedure
57
LonTalk communication interface
58
Operating Principles
64
System schematics
64
Pre-Start Checkout
67
Installation Checklist
67
Receiving
67
Unit Location and Mounting
67
Unit Piping
67
Electrical Wiring
67
General
68
Unit Voltage Power Supply
69
Unit Voltage Imbalance
69
Unit Voltage Phasing
69
Water System Flow Rates
70
Water System Pressure Drop
70
Contents
RTAD-SVX01F-E4
5