Johnson Controls Unitary Products 5393807-BUM-B-0818
USER’S INFORMATION,
MAINTENANCE AND
SERVICE MANUAL
DOWNFLOW/UPFLOW
ELECTRIC FURNACE
MODELS: EB/EU SERIES
ISO 9001
Certified Quality
Management System
TABLE OF CONTENTS
CONTACT INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
TO OPERATE FURNACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
TO SHUT FURNACE OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
SEQUENCE OF OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
LIMIT CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
BLOWER REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
FURNACE OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
CIRCUIT BREAKERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
LUBRICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
BLOWER ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
AIR FILTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
RETURN AIR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
WHILE YOU’RE AWAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
AT THE BEGINNING OF EACH HEATING SEASON . . . . . . . . . . 3
YOUR AUTHORIZED SERVICE TECHNICIAN . . . . . . . . . . . . . . . 3
OPTIONAL AIR CONDITIONING ACCESSORIES . . . . . . . . . . . . 3
HIGH PERFORMANCE BLOWER ACCESSORY
PACKAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
REPAIR PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
CONTACT INFORMATION
• Go to website at www.york.com, then click on “Contact Us” and
follow the instructions.
• Contact us by mail:
Johnson Controls Unitary Products
Consumer Relations
5005 York Drive
Norman, OK 73069
We recommend that the user read all sections of this
manual and keep the manual for future reference.
SECTION I: SAFETY
This is a safety alert symbol. When you see this symbol on
labels or in manuals, be alert to the potential for personal
injury.
Understand and pay particular attention to the signal words DANGER,
WARNING, or CAUTION.
DANGER indicates an imminently hazardous situation, which, if not
avoided, will result in death or serious injury.
WARNING indicates a potentially hazardous situation, which, if not
avoided, could result in death or serious injury.
CAUTION indicates a potentially hazardous situation, which, if not
avoided may result in minor or moderate injury. It is also used to
alert against unsafe practices and hazards involving only property dam-
age.
WARNING
Cancer and Reproductive Harm – www.P65Warnings.ca.gov
CAUTION
This furnace and its components, including the air conditioning coils
and blowers listed on the A/C accessory sticker were listed in com-
bination as a system by Underwriters Laboratories.
Use of other components not tested in combination with this furnace
may make the equipment in violation of State Codes, may create a
hazard, and may ruin the equipment.
In addition, the National Manufactured Housing Construction and
Safety Standards Act and its Regulations require the use of compo-
nents listed or certified by a nationally recognized testing laboratory
in all manufactured homes built and sold subject to that act.
!
!
WARNING
FOR YOUR SAFETY - Do not store or use gasoline or other
flammable vapors and liquids in the vicinity of this or any other
appliance.
For personal safety be sure to turn the electrical power OFF at
the household service box and at the furnace before attempt-
ing any service or maintenance operations. Homeowner
should never perform any maintenance which requires open-
ing the furnace electrical panel.
Do not store or use gasoline or other flammable vapors and
liquids in the vicinity of this or any other appliance.
WARNING
To avoid the possibility of electrical shock do not open electrical box
panels.
!
!
