Terminal Identification And Function - LG MultiSITE MS8250 Installation Manual

TERMINAL IDENTIFICATION AND FUNCTION

Terminal Identification
Fan Type
Supported fan types:
• Parallel On / Off
• Serial On / Off
• Parallel Electronically Commutated Motor (ECM)
• Serial ECM
Table 1: Terminal Identification for Fan Control.
Binary (24 Vac)
Terminal
4
6, 18 or 21
ECM (0-10 Vdc)*
Terminal
6, 18 or 21
10
*Floating duct reheat is not possible when fan type is ECM.
Air Flow Sensor (PI Only)
Supported air flow sensor parameters:
• Output voltage = 0-10 Vdc
• Pressure range = 0.5 or 5 inch water column
• Flow a one (1) inch water column:
• Minimum = 10
• Maximum = 10000
• Refer to the VAV box manufacturer flow chart for the recommended settings.
• See "Air Flow Sensor (PI Only)" above for recommendations.
Table 2: Terminal Identification for Air Flow Sensors.
PI-Only Air Flow Sensor
Terminal
5
6, 18 or 21
24
Supported output types:
• On / Off: Binary Output
• ECM: Analog Output
C / 24 Vac ~ Common
C / 24 Vac ~ Common
Name
RC / 24 Vac ~ Hot
C / 24 Vac ~ Common
UI24
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 Life's Good" is a registered trademark of LG Corp.
Name
BO4
Name
UO10
24 Vac ~ Hot
24 Vac ~ Common
0-10 Vdc Input
Connection
24 Vac ~ Enable
24 Vac ~ Common
Connection
24 Vac ~ Common
0-10 Vdc Output
Connection
13