LG V-NET PDRYCB400 User manual

P/NO : MFL67708305
www.lg.com
TYPE : 2 Points Dry Contact (For Setback)
MODEL : PDRYCB400
INSTALLATION MANUAL
• Please read this usage/installation manual completely before installing the product.
• Usage/Installation work must be performed in accordance with the national wiring
standards by authorized personnel only.
• Please retain this installation manual for future reference after reading it
thoroughly.
ENGLISH ITALIANO ESPAÑOL
FRANÇAIS
DEUTSCH
PORTUGUÊS
РУССКИЙ ЯЗЫК

2Dry Contact for setback
Dry Contact for setback Unit Installation Manual
TABLE OF CONTENTS
nSafety Precautions.............................................................3~5
nPart Description......................................................................6
Installation................................................................................................7
nSetting and using method................................................9~16
1. Power supply and indoor unit connection...........................................9
2. Setting of Contact Signal Input..........................................................10
3. Setting the desired temperature........................................................11
4. Control mode setting .........................................................................12
5. Indoor unit monitoring........................................................................16

Safety Precautions
Installation Manual 3
ENGLISH
nInstallation
Service
Center
Service
Center
To prevent injury to the user or other people and property damage, the following instructions
must be followed.
nIncorrect operation due to ignoring instruction will cause harm or damage. The seriousness is
classified by the following indications.
nMeanings of symbols used in this manual are as shown below.
WARNING
CAUTION
This symbol indicates the possibility of death or serious injury.
This symbol indicates the possibility of injury or damage.
Be sure not to do.
Be sure to follow the instruction.
WARNING
Don’t touch with the hands
while the power is on.
• Cause fire, electric shock, ex-
plosion or injury.
Product installation must
be referred to a service
center or installation shop.
• Cause fire, electric shock, ex-
plosion or injury.
Request installation from
installation shop or service
center when reinstalling
the product.
• Cause fire, electric shock, ex-
plosion or injury.
Safety Precautions

Standardized
product
Safety Precautions
4Dry Contact for setback
Do not install the product
in the place where rain can
get to the product.
• Cause product failure
Do not install the unit in
humid locations.
• Cause product failure
Do not put the product
closer to fire.
• Cause fire
Do not install in a place
that cannot withstand the
weight of the product.
• The product may get dam-
aged or may break.
Do not install the product
to a place that generates
oil, steam, salt, sulfuric
gas, etc.
• Cause the product’s deforma-
tion or failure.
Use standardized Product.
• Cause product failure
Do not change or extend
power lines arbitrarily.
• Cause fire or electric shock.
Do not give a shock to the
product.
• If you give a shock to the prod-
uct, it may cause the product’s
failure.
Do not use a heater near
the power line.
• Cause fire or electric shock.
nOperation

Service
Center
STOP
Safety Precautions
Installation Manual 5
ENGLISH
Do notspill water inside of
the product.
• Cause electric shock or
breakdown.
If the product has been in-
undated, you must refer to a
service center or installation
shop.
• It can cause a fire.
Children and elderly use the
product under the
guardian’s supervision.
• Cause accidents and product
failures.
Do not use for special pur-
pose / place such as con-
serving flora and fauna,
precision instruments, art.
• Otherwise, it can cause property
damage.
Remove the power plug
when cleaning.
• Cause fire or electric shock.
Do not place heavy objects
on the power line.
• Cause fire or electric shock.
Do not disassemble, repair,
or modify the product.
• Cause fire or electric shock.
Do not touch with wet
hands.
• Cause fire or electric shock.

6Dry Contact for setback
Part Description
NOT
USB
e
CN_OUT
CHANGE
OVER_SW
VOLT NON
VOLT
TEMP
SETTING
1
2
5
89
7
3
6
11
10
4
Front Case Rear Case
Metal Case (Front) Metal Case (Rear)
Rubber PCBA
Side Isolation Sheet
Cable 1EA
(for connecting with indoor unit)
*Other : Screw (For installation, 4EA)
*Other : Clamp (For installation, 4EA)
User/Installation
Manual
Part Description
1. CN_INDOOR : Connect communication wire between indoor unit and Dry Contact For Setback and
supply power to Dry Contact For Setback
2. CN_PI485 : PI485 connector
3. CHANGE_OVER_SW : Switch to select voltage (5V-12V) of contact point
4. CN_CONTROL : Contact point signal input
5. CONTROL_MODE_SW : Switch to select the control mode
6. SETTING_SW : Switch to select whether to use set function of Dry contact for setback
7. TEMP_SETTING : Switch to set the desired temperature of the indoor unit
8. CN_OUT (O1, O2) : Connector to show whether the indoor unit is operating
9. CN_OUT (E3, E4) : Connector to show whether there is an error with the indoor unit
10. DISPLAY_LED : LED to display the status of the Dry Contact For Setback
11. RESET_SW : Reset switch
DRY CONTACT FOR SETBACK

Part Description
Installation Manual 7
ENGLISH
Installation
1) Loosen and remove two screws that secures the product.
2) Remove the front metal case by pressing the marked points.
3) Position the rear case to the direction towards to the connector for convenient cable arrangement.
4) Remove 4 screws, for strapping wires.
5) Secure the rear case on the installation place using the supplied fixing screws.

Part Description
8Dry Contact for setback
6) Remove knock out shapes on the rear case (2-sided) according to the connector’s size and direc-
tion.
7) Connect the connection wires properly according to the connection method. (Refer to the instruction
and set-up description)
8) Set the switch according to the setting method. (Refer to the instruction and set-up description)
9) Hang the front of the case to the rear case hook and tighten the fixing screws on the bottom part.
1. Install the product on flat surface and install anchoring screws at more than 2 places. Otherwise
the central controller may not be anchored properly.
2. Do not tighten anchoring screws too tightly. It may cause deformation of the case.
3. Do not deform the case at random. It may cause malfunction of the controller.

Setting and using method
Installation Manual 9
ENGLISH
Setting and using method
1. Power supply and indoor unit connection
You must press the RESET switch when you are completed with all the settings to reflect the set-
tings.
n
When using the Dry Contact For Setback independently
nWhen using with the central controller (Only when the indoor
unit PCB is a non-communication model)
Indoor unit
PCB
Indoor unit
PCB
PI485: Connect to central controller
CN_PI485
CN_INDOOR
CN_INDOOR
CN_INDOOR
CN_INDOOR
CN_INDOOR
CN_INDOOR

Setting and using method
10 Dry Contact for setback
2. Setting of Contact Signal Input
nFor no power contact point signal input
nFor power contact point signal input
LG does not
supply this section
(Local supply)
LG does not
supply this section
(Local supply)
Connect separate external voltage of DC 5V~DC 12V
VOLT / COMMON
VOLT / COMMON