Granby EDR5 Guide D'installation page 2

EDR5 DRAFT REGULATORS INSTALLATION INSTRUCTIONS
READ CAREFULLY
THE INSTALLATION OF THE EQUIPMENT SHALL BE IN ACCORDANCE WITH THE REGULATION OF AUTHORITIES HAVING JURISDICTION
AND CSA STANDARD B139 (CANADA) OR NFPA 31 (USA)
The regulator contained in this package is manufactured with precision. It is designed to regulate
chimney draft and fuel efficiency with accuracy.
STEP 1: Locate the draft regulator
Locate the draft control as near to the furnace or boiler as possible. If a stack control is installed on
the smoke pipe, install regulator downstream of stack control and allow enough clearance to
respect the stack control instructions. See Figures 1 through 6 for best locations for oils or solid
fuels.
STEP 2: Install draft regulator collar on flue pipe
STEP 3: Assemble weight assembly on draft control vane
Insert the counterbalance weight on the bolt and lock assembly by tightening the knurled nut. From the
back of the vane, insert the counterbalance weight assembly thru the nut located on the top of the
vane. From the front of the vane, screw on the locking hex nut on the bolt then, finally, screw on the
front balance weight on the bolt until it is well tightened.
STEP 4: Install draft regulator on collar
For correct operation, the damper must be mounted with the hinge pins horizontal and the face of the
damper must be plumb. This is done by rotating the damper section within the collar for any pipe
position. Once the draft regulator has been properly positioned, tighten screw on the collar to hold
firmly in place. Refer to Figure 7.
STEP 5: Balance the weight assembly to adjust the draft
Proper operation of the regulator depends upon proper installation and adjustment. Use a CO
thermometer and draft gauge to adjust draft.
To increase the draft, turn the front balance weight clockwise. To decrease the draft, turn the front balance
weight counterclockwise. When the desired draft has been achieved, lock the counterbalance weight assembly
in place by tightening the hex nut against the vane.
(Note: For the regulator to operate properly, the chimney must be clean and free of obstructions.)
FOR WOOD AND COAL FIRED APPLICATIONS
Installation of this draft control should be made in accordance with the stove manufacturer's instructions. When this is not possible, follow the
directions below.
The best setting for wood and coal burners is a draft gauge reading of .04" to .08" W.C. If a draft gauge is not available, with the draft regulator
fully installed and a good fire burning, adjust the counterbalance weight closer to the door for as low as a draft setting as possible, without the
fire dying or getting smoke-back with the stove door slightly opened. To obtain higher heat levels, move the weight away from the door to
increase the setting.
For best combustion efficiency, stack temperature (upstream of the draft regulator) should be 350 ° F t o 450 ° F for dry wood. Recommended
stack temperatures and draft settings for coal vary according to the manufacturer of the stove.
FOR OIL-FIRED APPLICATIONS
Installation of this draft control should be made in accordance with the furnace or stove manufacturer's instructions. When this is not possible,
follow the directions below.
Use a CO2 indicator, stack thermometer and draft gauge to adjust draft for oil fired burners. In most cases, domestic oil burners work best with
the draft of .01" to .02" W.C.
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2011 GRANBY INDUSTRIES L.P.
Align holes by folding lugs located on the end of the collar. Insert a #6-32 screw through holes of both lugs.
Insert a #6-32 hexagonal nut on the screw but do not tighten.
Slip collar over the flange of the assembled draft regulator. Place other end of collar over flue pipe in desired
position. Make sure that the collar is horizontally levelled (face plumb). Draw an outline of the collar on the
flue pipe. Draw a second line 1/2" inside the first outline. Cut a hole in the flue pipe by following the interior
line. Cut radial slits every 1/2" within the outline on the flue pipe. The slits should start at the edge of the hole
cut in the flue pipe and end 1/8" from the first outline drawn on the flue pipe.
Hold the collar firmly against flue pipe and insert 2 self tapping screws (# 8 X 1/2") to fix the collar in place.
Bend the slits against the interior wall of the collar.
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indicator, stack
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SI-0092 rev C (EDR5-0010)
Revised: 2011-03-14