Sanyo CHDXR09663* - Test Run Procedure

Does system operate?
NO
*2
*1
*3
*2
*3
*4
*4
CASE 3A
YES
YES
NO
YES
NO
NO
NO
YES
YES
YES
Refer to Fig. 7-4
Recheck the items to check before the test run.
Have the outdoor sub units been connected?
Set the unit address.
Set the No. of outdoor units.
Set the No. of indoor units.
Are the inter-unit control wires connected
to more than 1 refrigerant system?
Set the system address.
When multiple outdoor main units exist,
disconnect the terminals extended from the shorted plugs
(CN003) at all outdoor main unit PCBs except for 1.
Alternatively, move the sockets to the OPEN side.
Is it possible to turn ON
the power only for the 1 refrigerant system
where the test run will be performed?
Will automatic address setting
be performed in Heating mode?
Is it OK to start the compressors? Is it OK to start the compressors?
Turn ON the indoor and outdoor unit power.
Set the wired remote controller for test run.
Return remote control to normal mode.
Turn ON the indoor and outdoor unit power.
<Outdoor unit control PCB>
Unit No. setting switch
(S007)
<Outdoor unit control PCB>
Unit No. setting switch
(S006)
<Outdoor unit control PCB>
Unit No. setting switch
(S004 and S005)
(Check the link wiring.)
<Outdoor unit control PCB>
Unit No. setting switch
(S002 and S003)
Short-circuit the automatic address pin
(CN100) on the outdoor main unit PCB
for 1 second or longer, then release it.
Short-circuit the mode change pin (CN101)
on the outdoor main unit PCB. At the same time,
short-circuit the automatic address pin (CN100)
for 1 second or longer, then release it.
Start indoor and outdoor unit cooling operation.
LED 1 and 2 blink alternately.
Start indoor and outdoor unit heating operation.
LED 1 and 2 blink alternately.
Check the
alarm contents.
Check the
alarm contents.
Are LEDs 1 and 2 on the outdoor unit PCB OFF?
Check that test run preparation is OK. (Do not allow the short-circuited pins to remain short-circuited.)
End test run.
Check and make corrections according to “Table of Self-Diagnostic Functions.”
Turn OFF the indoor
and outdoor unit power.
Make necessary
corrections.
CASE 2 YES
CASE 1 NO
CASE 3B NO
Are LEDs 1 and 2 on the
outdoor unit PCB OFF?
Turn ON the indoor and outdoor unit
power for that refrigerant system only.
Short-circuit the automatic address pin
(CN100) on the outdoor main unit PCB
for 1 second or longer, then release it.
LED 1 and 2 blink alternately
(about 2 or 3 minutes).
Make necessary
corrections.
Turn OFF the
indoor and outdoor
unit power.
It is not necessary to remove the socket
that is used to short-circuit the terminal
plugs from the outdoor sub unit PCBs.
Note:
*1 The unit with the unit No. set to 1 is the main unit. All other units are sub units.
*2 A minimum of 5 hours must have passed after the power was turned ON to the
outdoor unit.
*3 All indoor units operate in all refrigerant systems where the power is ON.
*4 Refer to “Table of Self-Dia
g
nostic Functions and Description of Alarm Displays.”
Refer to the remote controller
test-run settings.
Items to Check Before the Test Run
1. Turn the remote power switch on at least 5 hours before
the test, in order to energize the crankcase heater.
2. After performing the leak inspection, applying vacuum, and
performing refrigerant charge for the tubing which is con-
nected on-site, fully open the outdoor unit service valve.
However if only one outdoor unit is installed, a balance
tube is not used. Therefore, leave the valve fully closed.
3. When replacing the control PCB, be sure that the settings
on the new PCB match those on the old PCB.
4. Use caution when making the settings. If there are dupli-
cated system addresses, or if the settings for the Nos. of
the indoor units are not consistent, an alarm will occur and
the system will not start.
5. These settings are not made on the indoor unit PCB.
7-2. Test Run Procedure
Fig. 7-3
36