User Guide
Document No. 125-1902
June 26, 2018
POL220 Series Economizer Controller
Page 1 of 16
Product Description
The Economizer Controller allows the use of
unconditioned outside air to cool a building. The
Free Cooling air determination is based on customer
temperature and humidity selections, as well as
optional Demand Control Ventilation (DCV)
strategies with CO
2
level selection.
Features
•
Economizer control provides “free cooling”
based on single or dual dry bulb temperature, or
combination tempe humidity sensors.
•
Wide temperature shut-off setpoint range
selection and Btu/lb selection range selectable
by DIP switches.
•
Potentiometers allow accurate adjustment of
DCV, exhaust fan levels, and minimum damper
position.
•
Versions with remote minimum position damper
adjustments accept either 0 to 10 Vdc or 135
Ohm potentiometer signals.
•
Used with Siemens OpenAir
®
damper actuators.
•
Flexible sensor inputs accept 10K or 3K
standard NTC sensors, or Siemens QFM2160U
combination temperature/humidity 0 to 10V
sensor for enthalpy control.
•
LED Indication when in Free Cooling operation,
DCV operation and exhaust fan operation as
well as during sensor failure.
•
Quick installation and easy commissioning.
•
Two-stage cooling control.
•
Occupancy input with default capability.
•
Quick connect I/O with 1/4” spade connections.
•
Anti-freeze protection.
•
Brownout protection.
Product Numbers
Economizer
Controller
Single
Economizer
Controller
Multi-pack (20)
Remote
Potentiometer
Input Type
POL220.05
POL220.00
BSG61
(0-10 Vdc)
POL220.10
POL220.15
LVC2 (135
Ω)
Item Number 125-1902, Rev. GA
Contents
•
Economizer Controller
•
Two No. 6
3/4” self-tapping screws
Accessory
985-960 Jumper Accessory
Warning/Caution Notations
CAUTION/ATTENTION
Equipment damage or loss of data may
occur if you do not follow a procedure as
specified.
Risque de dégâts matériels ou de perte de
données, en cas de non-respect des
procédures à suivre.
WARNING/AVERTISSEMENT
Personal injury may occur if you do not
follow a procedure as specified.
Risque de blessures graves en cas de
non-respect des procédures à suivre.
Prerequisites
For proper Economizer Controller operation, read
this User Guide carefully, and follow the instructions
in the
Economizer Controller Start-up/
Commissioning Mode
section. Failure to do so may
result in damage to the product or create a
hazardous condition. Installation of this controller
must be performed by a trained HVAC service
technician.
