Modine Manufacturing POR oil-fired unit Installation Instructions Manual page 5

F F i i r r e e P P o o t t R R e e p p l l a a c c e e m m e e n n t t
1. Remove louvers by pushing each to the left against the
coil spring and pulling out opposite end.
2. Remove access door by removing six (6) brass bolts at
top and bottom of access door. Loosen the brass retaining
nuts at the right and left edges and slide off the access
door.
3. Remove all debris from heat exchanger drum to assure
proper positioning of new fire pot. Remove door gasket
and any remaining fragments from fire pot retaining clips.
4. From inside the drum, locate and drill two (2) .218 dia.
holes 13" up from the bottom of the drum and
approximately 2" from the old clip toward the front of the
unit (one on each side).
Retaining
Clip
Burner Tube
C C o o m m m m e e r r c c i i a a l l H H V V A A C C R R D D i i v v i i s s i i o o n n • Modine Manufacturing Company • 604 Liberty Lane • West Kingston, RI 02892
& &
Phone: 401.789.9388 • Fax: 401.792.9041 (Service & Parts) • www.modine.com
© Modine Manufacturing Company 2001
F F I I R R E E P P O O T T R R E E P P L L A A C C E E M M E E N N T T I I N N S S T T R R U U C C T T I I O O N N S S
Fire Pot
o o i i l l - - f f i i r r e e d d u u n n i i t t h h e e a a t t e e r r s s
5. Install new fire pot with the open end toward the burner
tube (rear of unit). Fire pot must sit flat on bottom of
drum. Fasten new fire pot retaining clips with stainless
steel screws and nuts at previously drilled holes so clips
retain fire pot corners.
6. Cut new door gaskets to proper length, add holes and
install around door opening with tape or a suitable paste.
Fasten access door at top and bottom with six (6) new
brass bolts and then tighten brass retaining nuts along
right and left edges. Tightening door in this sequence will
assure proper sealing.
7. Reverse procedure in Step One to replace louvers.
CAUTION: To prevent unusual thermal stress and eventual
harm to the heat exchanger, do not operate unit
heater without fire pot or with a damaged fire pot
that does not enclose the flame.
4-521.4
P P a a r r t t 5 5 H H 7 7 0 0 8 8 6 6 6 6 A A
December, 2001
Louvers
Access Door
and Gaskets
12/01 - Litho in USA