PATH freewatt HDJ, Installation, Operation & Maintenance Manual, Page: 29 / 68

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9.1 EGLS Introduction
Exhaust Gas Leak Sensor System in addition to •
separate, independently installed and operating UL
approved Carbon Monoxide Detector having audible
alarm.
Install both Exhaust Gas Leak Sensor (supplied with
•
freewatt PLUS) and audible UL approved Carbon
Monoxide Detector (not supplied with freewatt
PLUS).
freewatt PLUS
• System and freewatt PLUS Exhaust
Gas Leak Sensor do not provide audible alarms for
protection of building inhabitants from potential high
CO hazards.
Function of
• freewatt PLUS Exhaust Gas Leak Sensor
System is to automatically stop operation of MCHP unit
in event it detects potentially hazardous level of carbon
monoxide in vicinity of MCHP unit.
freewatt PLUS
• System Exhaust Gas Leak Sensor
System uses Macurco CO Detector con nected directly
to Honda MCHP Unit. Read following installation
instructions:
Read and understand installation and operation •
manual for Macurco CO Detector part of Exhaust Gas
Leak Sensor System.
Install Macurco CO Detector per manufacturer’s
•
instructions in close proximity of HONDA MCHP unit.
Install four-wire cable from HONDA MCHP to
•
Macurco CO Detector.
Verify cable properly secured (Maximum interval:
•
every 3 ft.)
Exhaust Gas Leak Sensor (EGLS) monitors integrity of •
MCHP unit’s combustion system shutting down MCHP
unit if potentially unsafe conditions are detected
.
Monitors carbon monoxide level in air space •
near MCHP unit. EGLS is independent of, and
separate from, audible CO alarming system that
must be installed with freewatt PLUS System in
compliance with best practices for all fuel-fi red
central heating equipment.
WARNING
freewatt PLUS
Exhaust Leak Gas Sensor does
not fulfi ll State of Massachusetts’s CO detector
and alarm requirement. Exhaust Gas Leak Sensor
does not provide an audible alarm for potentially
hazardous CO levels.
!
Exhaust Gas Leak Sensor is supplied with Hydronic •
freewatt PLUS System and is intended for installation
in close proximity of HONDA MCHP unit.
Figure 9-1 shows connections to Exhaust Gas Leak •
Sensor. Exhaust Gas Sensor will automatically stop
operation of MCHP unit upon detection of potentially
dangerous levels of carbon monoxide gas regardless of
source of carbon monoxide gas.
9.2 Preparation
Following items must be installed before Exhaust Gas Leak
Sensor can be installed:
Boiler, Control Module & Hydronic HI Module •
Honda MCHP Unit •
Thermostat •
WARNING
Exhaust Gas Leak Sensor does not fulfi ll
independent CO detector and audible alarm
requirement of
freewatt PLUS
System.
freewatt PLUS
System requires separate CO
alarm for protection of building inhabitants.
Separate
freewatt PLUS
System installation
requirement is fulfi lled by complying with State
of Massachusetts’s CO detector and alarm
requirements. Your state or local jurisdiction may
have additional requirements regarding carbon
monoxide detectors and alarms.
!
9.3 Installation
Exhaust Gas Leak Sensor is connected to HONDA MCHP
unit using four conductor stranded insulated cable supplied
by Honda. Follow installation instructions below to ensure
proper operation of Exhaust Gas Leak Sensor:
Honda MCHP Connection
4-pin cable connector to the HONDA MCHP for the •
Exhaust Gas Leak Sensor is factory-supplied and fi eld
installed. The HONDA MCHP installation kit includes an
electrical schematic for the wiring details.
See HONDA MCHP Installation manual for the
•
connections to the HONDA MCHP and for any servicing
or troubleshooting.
Exhaust Gas Leak Sensor Connections
Field install cable connection to Exhaust Gas Leak •
Sensor after installation of sensor. Figure 9-1 shows
fi eld connections of supplied cable to Exhaust Gas Leak
Sensor.
See MCHP Installation manual for connections to
•
HONDA MCHP for servicing or troubleshooting.
Field install jumper wire between second terminal (F)
•
and fourth terminal (N.C.). May need to install another
Jumper between COM and B terminals instead of using
crimp.
9 - EXHAUST GAS LEAK SENSOR