Instruction manual

30
A. CHIMNEY VENTING
1. Chimney venting is an important part of a safe and efcient
oil red appliance system. Contact your local re and
building ofcials on specic requirements for restrictions
and the installation of fuel oil burning equipment. In
addition, consult with a professional knowledgeable
on the requirements of NFPA 31 – Standard for the
Installation of Oil-Burning Equipment and NFPA 211
- Standard for Chimneys, Fireplaces, Vents, and Solid
Fuel-Burning Appliances for installations in the United
States. Installations in Canada must be reviewed with
a professional knowledgeable on the requirements
of CSA B139-04 – Installation Code for Oil-burning
Equipment.
2. The safe venting of oil red boilers is dependant on many
factors. Some of these factors include:
a. sufcient draft during the entire heating season to
allow for the safe discharge of combustion by-products
and;
b. suitable corrosion protection in the event of condensing
ue gases. Only a trained and qualied contractor
may install this product.
3. The MPO-IQ can be vented into a reclay tile-lined
masonry chimney that meets requirements outlined in
Paragraph 4 below. It can also be vented into a chimney
constructed from type L vent or a factory built chimney
that complies with the type HT requirements of UL 103.
The chimney and vent pipe shall have a sufcient draft
at all times, to assure safe proper operation of the boiler.
See Figure 15 for recommended installation.
WARNING
Do not de-rate the appliance. Failure to re the
boiler at it's designed input may cause excessive
condensation upon the interior walls of the chimney.
In addition, the lower input may not create enough
draft to adequately evacuate the by-products of
combustion.
4. Chimney Inspection – Prior to the installation of any new
or replacement fuel burning equipment the chimney shall
be inspected by a qualied installer. The chimney shall
be inspected for integrity as well as for proper draft and
condensate control. Some jurisdictions require the use
of a liner when changing fuel types. Some jurisdictions
require the use of a liner even when the same fuel is
used. At a minimum, the chimney shall be examined by
a qualied person in accordance with the requirements
of Chapter 11 of NFPA 211, Standard for Chimneys,
Fireplaces, Vents, and Solid Fuel-Burning Appliances.
a. Loose Mortar – Loose mortar could be an indication
of a prior history of condensing ue gases upon the
inside walls of the chimney. Colder climates are more
V. NATURAL DRAFT VENTING (All Boiler Models)
susceptible to this condition. Under no circumstances
shall a chimney of this condition be used until it meets
the requirements of NFPA 211 or CSA B139-04.
b. Unlined Chimney – Under no circumstances shall
a chimney constructed of brick only be used. Only
approved clay liners or listed chimney lining systems
shall be used as specied in NFPA 31 or CSA B139-
04.
c. Abandoned Openings – Openings through the
chimney wall that are no longer used shall be sealed in
accordance to NFPA 211. Often abandoned openings
are improperly sealed and usually covered by a gypsum
wall covering.
d. Clean Chimney – Chimney shall be free of all loose
debris.
5. Draft Regulator – the draft regulator supplied with the
boiler (or equivalent) must be used with this appliance.
Refer to Figures 15 and 16.
B. CHIMNEY CONNECTOR
1. A chimney connector (vent pipe) is used to connect the
boiler to the base of the chimney. The chimney connector
should be kept as short as possible. The horizontal length
of the chimney connector shall not be greater than 10
feet.
NOTE: Secure chimney connector to cast iron smokebox
collar with three (3) #10 x ½" self drilling hex head TEK
screws provided in miscellaneous parts carton. Locate
screws around perimeter of connector as shown in Figure
15 and approximately ½" in from edge. Use drill with
5/16" hex bit to drive screws through connector and
smokebox collar.
DANGER
The chimney and connector shall be inspected
annually for signs of debris and corrosion. Loose
mortar at the base of the chimney may be a sign
of condensate damage to the chimney. A chimney
professional shall be contacted immediately to
examine the damage and recommend a solution.
Long term operation while in this condition may
cause a venting failure and force ue gases into the
living space. If the chimney is to be re-lined use the
recommendations in NFPA 31, Appendix E or CSA
B139-04.
2. Type B Chimney Connector - a type B chimney connector
can be used to transmit the ue gases provided ue gas
temperature entering the chimney connector is greater
than 310°F.
3. Type L Chimney Connector - a type L vent or other suitable
material shall be used for a chimney connector if the
temperature or exiting temperature is less than 310°F.