F238006
67
To reduce the risk of electrical shock, fire, explosion, serious injury or death:
• Disconnect electrical power to the washer-extractor before servicing it.
• Close the gas shut-off valve to the washer-extractor (when applicable) before servicing it.
• Never start the washer-extractor with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the washer-extractor is properly grounded.
W461R1
WARNING
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
Section 5
Service Procedures
21. VOLTAGE DISTRIBUTION
Incoming electrical service is supplied to the machine
via a terminal strip mounted inside of the control
module. From the terminal strip, lines L1, L2 and L3
(on 3 phase models) or lines L1 and L2 (on single phase
models) are routed directly to the AC drive. The drive
is powered up when the machine receives power.
L1 and L2 also go to the primary side of the control
voltage transformer on P and N-voltage machines.
P voltage (380-415V/50-60 Hz/3ø/3W) and N-voltage
(440-480V/50-60 Hz/3ø/3W) machines have a 0.5
Amp circuit breaker for 150VA TX sizes (single-drain
versions) and 1 Amp circuit breaker for 250VA TX
sizes (dual-drain machines) on the primary side of the
TX. This protects the TX primary and the input wires
from overloads. The secondary side of the TX has 1
Amp (on single drain models) or 2 Amp (on dual-drain
models) circuit breakers to protect the control circuit
and TX from overloads on the secondary side of the
TX. An overload or improper TX connection can trip
both the primary and/or secondary breakers.
The control voltage transformer outputs are routed to
the circuit breakers (QFIA and QFIB). From QF1A, the
line goes to SB1 (E-Stop), to the AC Drive interface
board and then to the output board. From QFIB, the
common goes to the output board connector J2-1-1. All
of the neutral (common) wires in the control circuitry
are connected together electrically but are not
connected to ‘ground.’ The Q-voltage (200-240V/50-
60 Hz/3ø/ 3W) and T-voltage (200-240V/50-60
Hz/1ø/2W) machines will have the control voltage
taken directly off of L1 and L2 (R and S). The control
voltage will then route through a 1 Amp circuit breaker
(the same routing as the secondary from the control
transformer as described above), one per line, before
progressing to the actual controls. (If the machine is
equipped with dual drains, two 2 Amp circuit breakers
will be used in place of the 1 Amp version.)
Control transformers should be connected to deliver a
maximum of 240 Volt (60 Hertz) or 220 Volt (50 Hertz)
secondary voltage. Refer to Transformer Connection
Table below for all available connection terminals.
(E.g., for 415 Volt/50 Hertz input, connect to H1-H4
primary and X1-X2 secondary.)
A ground lug is provided inside of the control module
where the electric service is connected. It should be
connected to a proven earth ground. This equipment
ground is important but does NOT carry normal
operating power.
The 220V AC (hot) is routed first through the 1 Amp
control circuit breakers. From the control circuit
breakers, it is connected through the emergency stop
switch and the board mounted relay “K3” (on the AC
drive board) before reaching ACH on the fuse board
and KA6 door lock safety relay coil that, when
energized, will close, allowing the drive to be enabled
to run.
To reduce the risk of serious injury,
disconnect power and water to the machine
before attempting any maintenance, repairs
or service or before removing any panels.
WARNING
Transformer Connection Table
Primary
(Input)
Secondary
(Output)
H2-H4
H1-H4
X1-X2
355 Volt
415 Volt
202 Volt
380 Volt
440 Volt
215 Volt
400 Volt
460 Volt
226 Volt
–
480 Volt
235 Volt
–
500 Volt
246 Volt
