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Installation, Operation and
Maintenance Manual
Oil Fired Warm Air Furnaces
WML-C AND MPL-B
(Down-Flow or Horizontal Model)
ALL INSTALLATIONS MUST MEET ALL
LOCAL, PROVINCIAL/STATE, AND
FEDERAL CODES WHICH MAY
DIFFER FROM THIS MANUAL
ECR International Limited
OLSEN Division
Read this complete manual before
beginning installation. These
instructions must be kept with the
furnace for future reference.