![background image](http://html.mh-extra.com/html/lg/arum072bte5/arum072bte5_installation-manual_1891576135.webp)
135
Pre-Commissioning
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Outdoor Unit Code
22
46
Electrical Requirements
208-230V / 60Hz / 3Ø 460V / 60Hz / 3Ø
Display
Code
8 10 12 14 18 20 22 24 26 28 32 34 36 38 40 42
Nominal
Mb/h
6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36
Table 61:
Display Code Definitions—Outdoor Unit Nominal Capacity.
1. Power all indoor units.
2. Power all heat recovery units in conjunction with powering indoor units (heat recovery
systems only).
3. Verify the outdoor units to indoor units / heat recovery units communications cable is
installed and terminated correctly.
4. Verify the communications cable between outdoor unit frames is installed and terminated
correctly. Inspect terminals (SODU [B] and SODU [A]) at each outdoor unit.
5. Verify that DIP Switches 6 and / or 7 on the slave outdoor unit(s) were properly adjusted
for the job site configuration.
6. Power all outdoor units. Order does not matter on multi-frame installation.
7. As the power is provided to the main printed circuit board (PCB) on the Master outdoor
unit, observe the SSD.
• Wait. The perimeter segments will flash in sequence for 45
seconds.
• Verify the microprocessor’s outdoor unit configuration agrees
with the submittal information approved the design engineer
(see Tables below).
• Confirm that this step has been completed by checking the box
provided on the Record following the information as it is provided. The date is provided
in sequence, and segment of the sequence will remain lit for two (2) seconds.
Run Self Diagnostics Check
If the indoor units have already been successfully assigned a system address, skip this step and
go to “Assign Addresses to the Heat Recovery Units.”
Table 62:
Display Code Definitions—Voltage.
Sequence
Description
Code(s)
1
Master Outdoor Unit Nominal Capacity
8 - 14*
2
Slave1 Outdoor Unit Nominal Capacity
8 - 24*
3
Slave2 Outdoor Unit Nominal Capacity
8 - ~*
4
Total Nominal Capacity of System
8 - ~ *
5
Unit Type
Heat Pump
2
Heat Recovery
3
6
Unit Voltage
208-230V / 60Hz / 3Ø
22
460V / 60Hz / 3Ø
46
7
Efficiency Level
1 or 2
Table 63:
Segment Display Sequence (Two [2] seconds per segment following a forty-five [45] second wait).
*See Tables above for code definitions.
Self Diagnostics Check
All switches on outdoor unit PCB DIP Switch bank SW01 are factory set to OFF. To prepare
for the self diagnostics check:
1. Verify that all indoor unit models are Gen 4. (See “DIP Switch Settings for Use With GEN
4 Indoor Units” earlier in this section.)
2. Flip No. 3 on DIP Switch bank SW01 to ON.
3. Push the reset SW01D button.
DIP-SW01
SSD
SW01C
(Confirm / Automatic
Address Setting Button)
SW01D
(Reset Button)
SW02C
(
◄
Backward
Button)
SW03C
(
►
Forward
Button)
SW04D
(x Cancel
Button)
Location of SW01 and SW01D.
1 2
7
6
5
4
3
1 2
7
6
5
4
3
ON
OFF
1 2
7
6
5
4
3
1 2
7
6
5
4
3
ON
OFF
Air/Water Source Unit DIP Switch No. 3
DIP Switch Bank SW01 Settings.
Self Diagnostics Check
PRE-COMMISSIONING