LG PQNUD1S41 Installation & Owner's Manual page 16

INSTALLATION METHOD
16
Connect the wattmeter and communication cable (EHP products)
When connecting the pulse-type wattmeter
• Independent Operation of Power Indicator (interlocked to EHP product)
POWER
CAUTION
1. Please read the manual carefully, before using the product.
2. The installation requires expert skills, and it should be installed by the
service or other shops specialized in the installation and recognized by
our company.
3. For all the problems arising after installation by someone who has no
relevant qualifications, our company will not provide free service
CAUTION
!
• The color and polarity of the signal wire may be different from the details indicated on the
case depending on the manufacturer of wattmeter. [Black: (-), white: (+)]
• When connecting the 485 communication cable, make sure to check the A, B polarity.
• After connecting the wattmeter, check whether the signal is connected through the LED.
• Power indicator and Pulse Type wattmeter must be installed in same panel.
Pulse type
wattmeter
WHM
MENU
SELECT
PQNUD1S40
ODU WHM CHECK
Central
controller
Pulse type
wattmeter
Remote
reading