Samsung MH052FDEA, Training Manual

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89 Samsung Electronics
To complete the installation, perform the following checks and tests to ensure that the air conditioner is operating correctly.
1. Review all the following elements in the installation:
1. • Installation site strength
1. • Piping connection tightness not to leak any gas
1. • Connection wiring
1. • Heat-resistant insulation of the piping
1. • Drainage
1. • Earthing wire connection
1. • Setting number of the indoor unit installed (Outdoor unit SW)
1. • Addressing mode (AUTO or MANUAL)
1. • Address number on each indoor unit (Manual addressing mode)
1. • Correct operation for checking connection (follow the step below)
2. Apply the power to the outdoor unit
1. Outdoor unit will try to communicate the specified number of indoor units by SW01 on outdoor display PCB.
1. • If connection is normal then LED shows "normal display", right 2 digit of LED on Display PCB displays '00' and left 2 digit of LED
displays indoor unit address number.
This number is displayed only while communicating, so each number is displayed for a short time and in order.
1. • If Error code, started with 'E', is displayed on the LED check the indoor unit, outdoor unit or wiring according to the error code
table.
1. • If nothing is displayed on the LED, check the power source, power cable and FUSE on the outdoor controller.
2.
■
In case of AUTO ADDRESSING mode (SW02-1:ON)
2.
■
- Press K2 switch 4 times to start "PIPE CHECK MODE".
2.
■
- After starting this mode, LED on the left is displayed "K5" and press K2
switch once to cancel this mode .
2.
■
- If this "PIPE CHECK MODE" finished without error, LED shows "normal
display" and press K3 to restart the system.
2.
■
- This mode is for finding the combination between indoor unit
and each valve on the outdoor unit. Because refrigerant flow is controlled
with EEV in the outdoor, controller should know which EEV will controls
which indoor unit.
2. - It takes 5 to 50 minute to complete. This time depends on the
outdoor temperature and number of indoor unit.
2. - During this mode LED on the right 2 digit shows EEV number and the
indoor address which is checking at the time. (see right figure)
2. - If checking finished with no error, LED display returns to
"normal display".
2. - If finished with error, right digit will show the EEV number which is the
wrong PIPE connection. In case of two or more wrong connection, error
EEV number will display each for 1 seconds in order.
2. - After confirm the error, press K3 to system reset and do this mode again.
2. - Once "PIPE CHECK MODE" is done normally, each indoor unit will
remember the given address number by the outdoor unit and no need to
do this checking.
2. - But in case of listed below, PIPE CHECK MODE should be done again.
2. - • Re-install the system (ie. house moving)
2. - • Remove indoor unit, Add new indoor unit, Change indoor PCB for repair.
2. - • Mode change from "manual addressing" to "auto addressing"
8-2 Checking and Testing operations
K 1
1 2 3 4
K 2 K 3 K 4
Number of
indoor unit
AUTO
Addressing
MANUAL
Addressing
7 segment
LED
2digits x 2
K5 EEV
number
0,1,2,3
Indoor
unit
Address
LED display under PIPE CHECK MODE
No
display
Error EEV
number
0,1,2,3
LED display when PIPE CHECK ERROR
DB98_20402A(1)_2 10/26/04 3:27 PM Page 89