Catalogue

11 2 RLC-PRC029-EN
Electrical Connection
Table 59. RTWD/RTUD - Field Wiring Diagram Notes
#Description
1
Single source power is provided as standard on these products, dual source power is optional. Field connections for single source power
are made to 1X1, 1Q1, or 1Q2. When dual source power is selected the field connections for circuit #2 are made to 1X2, 1Q3, or 1Q4.
2
For voltages 200 V/60 Hz, 220V/50Hz, 380 V/60 Hz, 460 V/60 Hz, wire 26A shall be connected to H2. For voltages 230 V/60 Hz and
575 V/60 Hz, wire 26A shall be connected to H3. 400 V/50 Hz unit is factory wired with 26A connected to H3 - reconnect wire 26A to
H2 for 380V/50Hz, or H4 for 415V/50Hz. H4 is only available with 400V/50Hz panels.
3
Factory installed outdoor air temperature sensor lead length to be spliced and extended by customer. 18 AWG twisted pair
recommended.
4
Customer supplied power 115/60/1 or 220/50/1 to power relays. Max fuse size is 15 amps. Ground all customer supplied power supplied
as required by applicable codes. Green ground screws are provided in unit control panel.
5
Wired to next unit. 22 AWG shielded communication wire equivalent to helix LF22P0014216 recommended. The sum total of all
interconnected cable segments not to exceed 4500 feet. Connection topology should be daisy chain. Refer to building automation system
(BAS) communication installation literature for end of line termination resistor requirements.
6
Wired to Tracer or other Trane remote device. 22 AWG shielded communication wire equivalent to helix LF22P0014216 recommended.
The sum total of all interconnected cable segments not to exceed 4500 feet. Connection topology should be daisy chain. Refer to building
automation system (BAS) communication installation literature for end of line termination resistor requirements
7 Wired to compressor % RLA.
8 Wired to condenser control customer selectable function.
9 Wired to customer chilled water setpoint 2-10 V or 4-20 mA.
10 Wired to customer current limit setpoint 2-10 V or 4-20 mA.
11 Refer to RTWD/RTUD electrical schematic for specific electrical connection information and notes pertaining to wiring installation.
12
All unit power wiring must be 600-V copper conductors only and have a minimum temperature insulation rating of 75°C. Refer to unit
nameplate for minimum circuit ampacity and maximum overcurrent protection device. Provide an equipment ground in accordance with
applicable electric codes.
13 All field wiring must be in accordance with national electric code and local requirements.
14
All customer control circuit wiring must be copper conductors only and have a minimum insulation rating of 300 volts. Except as noted,
all customer wiring connection are made to circuit board mounted box lugs with a wire range of 14 to 18 AWG.
15
Unit provided dry contacts for the condenser/chilled water pump control. Relays are rated for 7.2 amps resistive, 2.88 amps pilot duty,
or 1/3 HP, 7.2 FLA at 120 volts 60Hz. Contacts are rated for 5 A general purpose duty 240-V.
16
Customer supplied contacts for all low voltage connections must be compatible with dry circuit 24 VDC for a 12 mA resistive load. Silver
or gold plated contacts recommended.
17 Flow switch and interlock contacts must be acceptable for use in a 120-V, 1-mA circuit or a 220-V, 2-mA circuit.
18
Only present on “ED” frame molded case switches. 1X7, 1X8, 27A, 28A, 29A, 30A, 31A, and 32A are not present with all other molded
case switches.
19
Wires are connected to normally open dry contacts for circuit 1 condenser fan control relays are rated for 7.2 amps resistive, 2.88 amps
pilot duty, or 1/3 HP, 7.2 FLA at 120-V, contacts are rated for 5 amps general purpose duty 240-V. Wires 201 and 202 enable fan group
1. Wires 203 and 204 enable fan group 2. Wires 205 and 206 enable group 3. Wires 207 and 208 enable fan group 4.
20
Wires are connected to normally open dry contacts for circuit 2 condenser fan control relays are rated for 7.2 amps resistive, 2.88 amps
pilot duty, or 1/3 HP, 7.2 FLA at 120-V, contacts are rated for 5 amps general purpose duty 240-V. Wires 209 and 210 enable fan group
1. Wires 211 and 212 enable fan group 2. Wires 213 and 214 enable group 3. Wires 215 and 216 enable fan group 4.
21 Wires are connected to 0-10 VDC signal at 22m A maximum for circuit 1, group 1, condenser fan speed control.
22 Wires are connected to 0-10 VDC signal at 22m A maximum for circuit 2, group 1, condenser fan speed control.
23
Wires are connected to circuit 1, group 1, condenser fan fault feedback. Connection must be compatible with dry circuit 24 VDC for A
122-mA resistive load. Silver or gold plated contacts recommended.
24
Wires are connected to circuit 2, group 1, condenser fan fault feedback. Connection must be compatible with dry circuit 24 VDC for A
122-mA resistive load. Silver or gold plated contacts recommended.
25 1A31 (BACnet) and 1A9 (LonTalk) may not be installed on the same unit.
26
Wired to next unit. 18-AWG, 24-pF/ft, shielded communication wire recommended. the sum total of all interconnected cable segments
not to exceed 4000 feet. Connection topology should be daisy chain. Limit link to 60 Trane devices or 32 devices of Trane and non-
Trane manufacture.
27
Wired to Tracer or other Trane remote device. 18-AWG, 24-pF/ft, shielded communication wire recommended. the sum total of all
interconnected cable segments not to exceed 4000 feet. Connection topology should be daisy chain. Limit link to 60 Trane devices or
32 devices of Trane and non-Trane manufacture.