Outdoor Airflow Monitor; Smoke Detector - Greenheck ERCH-20 Installation, Operation And Maintenance Manual

Outdoor Airflow Monitor
A factory-wired, mounted and powered airflow
monitoring system is provided. The airflow control
system offers the following functionality:
• Display of outdoor airflow rate in actual cubic feet
per minute (CFM) or actual liters per second (LPS) on
a 16 character LCD display.
• Two configurable analog outputs for transmitting
outdoor airflow rate, outdoor air temperature, or a
proportional-integral-derivative (PID) control signal
based on an outdoor airflow set point.
• A configurable digital output that operates based on
an airflow set point or range.
Operation
Outdoor airflow monitoring is accomplished using two
thermal dispersion sensors that accurately measure
airflow velocity down to zero feet per minute (fpm). The
airflow controller takes the average measurement for
two sensor configurations, and determines the outdoor
airflow rate based on the effective intake area. Field
calibration of the outdoor airflow monitoring device
determines the effective intake area of the unit.
Refer to GreenTrol® Automation Inc. GF-2200A
technical data sheet for further detail.
IMPORTANT
For the outdoor airflow monitoring device to perform
as intended, field calibration is required. Calibration of
the airflow monitoring device requires an independent
measurement of airflow and should be performed
when the system undergoes test and balance.
26 Energy Recovery Ventilator with Heating and Cooling General Description - NOT model specific

Smoke Detector

The Hochiki America DH-98 duct
smoke detector provides early
detection of smoke and products of
combustion present in air moving
through HVAC duct systems. The
DH-98-P is designed to prevent
the recirculation of smoke in areas
by the air handling systems, fans,
and blowers. Complete systems may be shut down
in the event of smoke detection. The Hochiki America
DH-98-P operate on 115 VAC, 24 VAC and 24 VDC.
The DH-98-P is designed and built to meet all local
requirements, as well as the NFPA regulations regarding
duct smoke detectors. Output terminals are provided
for remote accessories such as a horn, strobe, remote
status indicators and reset key switches or push
buttons.
Refer to Hochiki America DH-98-P installation
instructions for further detail.
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