LG Multi V 5 Reference Manual page 3

Split doas

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LG Split DOAS Set Up Reference Guide

DOAS Operation

Following installation, DOAS configuration and testing includes the process

identified below.

1. Connect the Ethernet line to CAREL Controller and Laptop

2. Check IP Address on CAREL*, copy it to Chrome Browser in your Laptop

*Click Menu button on CAREL controller [ ]  Ctrl. Variable  Network  Check IP address

3. Login with 'Service manager' account for configuration (PW:7600)

4. Unit Parts Check (Service  Test Run)

‐. Rooftop DOAS : Dampers(OA/EA/MA)  Fans(SA/EA)  Wheel  Coils(Main/Reheat/Recovery)

‐. Compact DOAS : SA Fan  Main Coil#1  Reheat Coil

During Test Run unit automatically check the parts fault by its input/output signal(feedback)

Test Run

5. Check the Simple Unit Operation (Supply Air Control)

‐. Cooling : If 'OA + Heat Cool Deadband

‐. Heating : If 'OA – Heat Cool Deadband

There are two ways to ensure proper performance under certain operating mode(s).

1) Change your Target temperature so that unit can change the mode.

2) Use 'Manual Override' to change Outside Air Condition on Web UI.

OA temperature can be manually overridden in order to enter Cooling or Heating Mode.

1) Service Manager log in  Service  Configuration  See the 'Temperature Control' Section  Set value of 'Heat Cool deadband'

/2' Temp. is higher then Target Temperature Unit will be in Cooling

/2' Temp. is lower then Target Temperature, Unit will be in Heating

[Manual Override]

Target Temp.

Configuration

Manual Override

Test Run

Set OA Temp : 62F

OA Temp change to : 62F

Unit goes on

'Heating' mode

Continued......