Owner`s manual
Installation
outSide FReSH-aiR connection:
This Heater must have adequate air for proper combustion in the room that it is installed.
Figure 7: Outside Air Connection. 
eXHauSt and FReSH aiR intake LocationS:
A  Fresh-air  intake  is  strongly  recommended  for  all 
installations. Failure to install intake air may result in 
improper  combustion  as  well  as  the  unit  smoking  during 
power failures. 
The inlet to the intake must be below and a minimum of 12” 
(30cm) away from the unit exhaust outlet. 
Outside  fresh  air  is  mandatory  when  installing  this 
unit in airtight homes and mobile homes.
When connecting to an outside fresh air source, do not use 
plastic  or  combustible  pipe.    A  3”  minimum    (76  mm)  ID 
(inside diameter) steel, aluminum or copper pipe or ducting 
should be used. The inlet must have a screen installed. It is 
recommended, when you are installing a fresh air system, to 
keep the number of bends in the pipe to a minimum. 
3" ID
(76 mm)
Optional
Elbow
Outside
Wall
Figure 8: M55C-FPI Inlet and Outlet Location. 
This  unit  uses  a  4” 
exhaust vent.
EXHAUST:
Base of unit to center of flue
 16
1
/
4” (413 mm)
Center  of  unit  to  center  of 
flue
 9
5
/8” (245 mm)
FRESH AIR INTAKE.
Base of unit to center of 
intake
 5
1
/
8” (130 mm)
Center  of  unit  to  center  of 
intake
 5” (128 mm)
9.624
THIS DRAWING IS THE PROPERTY OF SHERWOOD INDUSTRIES LTD. AND MAY NOT BE COPIED, REPRODUCED, OR OTHERWISE DISCLOSED WITHOUT THE PRIOR APPROVAL OF SHERWOOD INDUSTRIES LTD.
BACK VIEW
DESC:
SPECIAL NOTE:
SHERWOOD INDUSTRIES LTD.
BY
MODEL:
M55C-FPI
PL
DATE: 20/7/2010
16.273
4.952
5.120
3.000
4.000
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