Preparing For Test Run; X, Xm, T, U, Us Types; Caution; Test Run Procedure - Sanyo SPW-C256VH Technical Data & Service Manual

2-1. Preparing for Test Run

Before attempting to start the air conditioner,
check the following:
(1) All loose matter is removed from the cabinet
especially steel filings, bits of wire, and clips.
(2) The control wiring is correctly connected and all
electrical connections are tight.
2
(3) The protective spacers for the compressor used
for transportation have been removed. If not,
remove them now.
(4) The transportation pads for the indoor fan have
been removed. If not, remove them now.
(5) The power has been supplied to the unit for at
least 5 hours before starting the compressor. The
bottom of the compressor should be warm to the
touch and the crankcase heater around the feet of
the compressor should be hot to the touch. (Fig.
2-1)
Power mains switch
(6) Both the gas and liquid tube service valves are open. If
not, open them now. (Fig. 2-2).
(7) Request that the customer be present for the test
run. Explain the contents of the instruction manual,
and then have the customer actually operate the
system.
(8) Be sure to give the instruction manual and
warranty certificate to the customer.
(9) When replacing the control PCB, be sure to make
all the same settings on the new PCB as were in
use before replacement.
The existing EEPROM is not changed, and is
connected to the new control PCB.
ON
(Power must be turned ON at least
5 hours before attempting test run)
Fig. 2-1
Gas tube
Liquid tube
Fig. 2-2

X, XM, T, U, US Types

2-2. Caution

This unit may be used in a single-type
refrigerant system where 1 outdoor unit is
connected to 1 indoor unit, and also in a system
where 1 outdoor unit is connected to multiple
indoor units (maximum 4).
* If multiple indoor units are used, also refer to "2-8.
System Control".
The indoor and outdoor unit control PCB utilizes
a semiconductor memory element (EEPROM).
The settings required for operation were made
at the time of shipment.
Only the correct combinations of indoor and
outdoor units can be used.
This test run section describes primarily
the procedure when using the wired remote
controller.

2-3. Test Run Procedure

Recheck the items to check
before the test run.
Check the combination (wiring) of
indoor and outdoor units.
Is system "single-type"?
YES
(1 indoor unit is connected
to 1 outdoor unit and remote
controller)
Is group control with
multiple outdoor units used?
Turn ON the
indoor and
outdoor power.
(Automatic
Address setting)
Turn ON the indoor and
(*1) outdoor power.
Indicate (mark) the
combination number.
Set the remote controller to
"test run".
operation be
Return the remote controller
to normal control.
2-2
(See 2-4)
(See 2-8-1 to 5)
(See 2-8-3)
NO
Setting the Outdoor
Unit System
Address
Set the outdoor
YES
unit system
address.
(See 2-8-4)
Automatic Address
NO
Setting
Automatic
Use the remote
Address
controller to
setting
perform automatic
address setting.
(See 2-8-5)
(See 2-5)
Refer to "Table of Self-
Can
NO
Diagnostic Functions"
to check the system.
started?
In addition, refer to
2-8-1 to 5 and correct
any items that need to
YES
be corrected.
Note: Check the indoor-side
drainage.
(*1) Required for simultaneous-
operation multi systems and for
group control.
Fig. 2-3