Catalogue

RLC-PRC029-EN 11 7
Electrical Connection
Table 61. RTWD/RTUD Layout Notes
1A1 Dyna View main processor interface ** 1K3 Contactor, compressor 1A short.
1A2 Power supply module. ** 1K4 Contactor, compressor 1A transition.
1A3 Starter module, compressor 1A. 1K5 Contactor, compressor 2A start.
1A4 Starter module, compressor 2A. ** 1K6 Contactor, compressor 2A run.
1A5 Dual low voltage input, external auto stop and emergency stop inputs. ** 1K7 Contactor, compressor 2A short.
1A6 Dual low voltage input, external circuit lockout, refrigerant circuit 1 and 2. ** 1K8 Contactor, compressor 2A transition.
*1A7
Analog input/output, external current limit and external chilled water or hot
water setpoint inputs.
* 1Q1 Disconnect switch, power distribution.
* 1A8 Analog input/output, condenser control and compressor % RLA output. * 1Q2 Circuit breaker, power distribution.
* 1A9 Dual low voltage input, LCI-C communications (Echelon). * 1Q3 Disconnect switch, power distribution.
* 1A10 Dual low voltage input, ice machine control and heat mode control. * 1Q4 Circuit breaker, power distribution.
* 1A11 Dual high voltage input, motor thermostats compressor 2A and 1A. ** 1R1 Resistor, transition, compressor 1A, line A.
* 1A12 Dual relay output, ice making status. ** 1R2 Resistor, transition, compressor 1A, line B.
* 1A13 Quad relay outputs, unit status programmable relays. ** 1R3 Resistor, transition, compressor 1A, line C.
1A14 Dual relay output, condenser and chilled water pump relays. ** 1R4 Resistor, transition, compressor 2A, line A.
* 1A15 Dual high voltage input, condenser and chilled water flow and interlock. ** 1R5 Resistor, transition, compressor 2A, line B.
1A16 Dual triac output, modulating unload and load compressor 2A. ** 1R6 Resistor, transition, compressor 2A, line C.
1A17 Dual triac output, step load control compressor 2A and 1A. 1T1 Transformer, control power.
1A18 Dual triac output, modulating unload and load compressor 1A. 1T2 Transformer, current, compressor 1A, line A.
1A19 Dual high voltage input, high pressure cutout compressor 2A and 1A. 1T3 Transformer, current, compressor 1A, line B.
1A20 Dual triac output, oil return gas pump drain and fill, circuit 2. 1T4 Transformer, current, compressor 1A, line C.
1A21 Dual triac output, oil return gas pump drain and fill, circuit 1. 1T5 Transformer, current, compressor 2A, line A.
*** 1A22 Dual high voltage input, panel ventilation. 1T6 Transformer, current, compressor 2A, line B.
1A23 Dual low voltage input, oil loss level. 1T7 Transformer, current, compressor 2A, line C.
* 1A24 Dual low voltage input, water flow sensor. * 1T8
Transformer, potential, under/over voltage - power
meter, line A to B.
* 1A25 Quad relay outputs, circuit 1 fan control. * 1T9 Transformer, potential, power meter, line B to C.
* 1A26 Quad relay outputs, circuit 2 fan control. * 1T10 Transformer, potential, power meter, line A to C.
* 1A27 Analog input/output, fan speed control. * 1T11 Transformer, potential, power meter, line A to B.
* 1A28 Dual low voltage input, fault feedback. * 1T12 Transformer, potential, power meter, line B to C.
*** 1B21 Thermostat, panel ventilation * 1T13 Transformer, potential, power meter, line A to C.
*** 1M3 Motor, ventilation fan. 1T14 Transformer, potential, power meter, line A to B.
1F13
Fuse, potential transformer primary, compressor 1A, line A, under/over
voltage - power meter.
1X1 Power distribution block.
1F14
Fuse, potential transformer primary, compressor 1A, line B, under/over
voltage - power meter.
* 1X2 Power distribution block.
1F15 Fuse, control power transformer secondary, 115 V. 1X4 Terminal strip, customer control wiring.
1F16 Fuse, control power transformer secondary, 27 V. 1X5 Terminal strip, factory control wiring.
1F17 Fuse, control power transformer secondary, 27 V. * 1X6 Terminal strip, factory power meter wiring.
* 1F18 Fuse, potential transformer primary, compressor 1A, line C, power meter. * 1X7 Power distribution block.
* 1F19 Fuse, potential transformer primary, compressor 2A, line A, power meter. * 1X8 Power distribution block.
* 1F20 Fuse, potential transformer primary, compressor 2A, line B, power meter. 1X9 Terminal strip, water flow sensor control wiring.
* 1F21 Fuse, potential transformer primary, compressor 2A, line C, power meter. *** 1X10 Terminal strip, ventilation.
1K1 Contactor, compressor 1A start. * 1X11 Terminal strip, fan control.
** 1K2 Contactor, compressor 1A run. * 5B18 Temperature sensor, outdoor air temperature.
Notes: Refer to RTWD/RTUD electrical schematic for specific electrical connection information and notes pertaining to wiring installation.
* - Optional components; may not be present on all units.** - Wye-delta components; may not be present on all units.*** - Only present when ventilation is required.