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Key no. Description Spare part code
141 Flue thermostat BI1262 104
142 Twin fl ue cover plate BI1366 114
143 Gasket - Air intake twin kit BI1016 101
144 Air restrictor d. 45 mm BI1406 129
145 Return group (Model c.h. only)
BI1171 107
146 By-pass pipe (Model c.h. only)
BI1171 106
147 Flow group kit (Model c.h. only)
BI1171 103
148 Safety valve connection pipe (Model c.h. only)
BI1262 140
149 Main exchanger outlet pipe (Model c.h. only)
BI1262 141
150 Control panel box (Model c.h. only)
BI1555 115
151 Flow switch, temp. probe and modulator cable (Model c.h. only)
BI1615 118
152 Pump cable (Model c.h. only)
BI1615 119
Appendix A: Special Requirements For Side-Wall Vented Appliances
In The Commonwealth of Massachusetts
IMPORTANT
The Commonwealth of Massachusetts requires compliance with regulation 248 CMR 4.00 and 5.00 for
installation of side-wall vented gas appliances as follows:
(a) For all side wall horizontally vented gas fueled equipment installed in every dwelling, building or struc-
ture used in whole or in part for residential purposes, including those owned or operated by the Com-
monwealth and where the side wall exhaust vent termination is less than seven (7) feet above fi nished
grade in the area of the venting, including but not limited to decks and porches, the following require-
ments shall be satisfi ed:
1. INSTALLATION OF CARBON MONOXIDE DETECTORS.
At the time of installation of the side wall horizontal vented gas fueled equipment, the installing plumber
or gasfi tter shall observe that a hard wired carbon monoxide detector with an alarm and battery back-up
is installed on the fl oor level where the gas equipment is to be installed. In addition, the installing plumber
or gasfi tter shall observe that a battery operated or hard wired carbon monoxide detector with an alarm is
installed on each additional level of the dwelling, building or structure served by the side wall horizontal
vented gas fueled equipment. It shall be the responsibility of the property owner to secure the services of
qualifi ed licensed professionals for the installation of hard wired carbon monoxide detectors.
a. In the event that the side wall horizontally vented gas fueled equipment is installed in a crawl space
or an attic, the hard wired carbon monoxide detector with alarm and battery back-up may be installed
on the next adjacent fl oor level.
b. In the event that the requirements of this subdivision can not be met at the time of completion of
installation, the owner shall have a period of thirty (30) days to comply with the above requirements;
provided, however, that during said thirty (30) day period, a battery operated carbon monoxide de-
tector with an alarm shall be installed.