Service manual

14
Severe Injury Hazard
Install guard before
operating high speed
rotating impeller.
Keep hands, fingers and
clothing away from inlet
and outlet.
Install and operate
equipment according to
installation manual.
Failure to follow these
instructions will result in
death or severe injury.
P/N 91012100 Rev. A
Printed in the U.S.A./
Imprimé aux États-Unis
©
Risque de blessures graves
Installer la protection avant
de faire fonctionner limpul-
seur rotatif de haute vitesse.
Tenir les mains, les doigts
et les vêtements à lécart des
prises dentrée et de sortie.
Installer et opérer lappareil
suivant les indications conte-
nues dans le manuel dinstall-
ation.
Si vous ne suivez pas ces ins-
tructions, vous risquez la
mort ou des blessures graves.
DANGER
DANGER
Servicing Instructions
To remove the motor or impeller, the scroll must be opened. Remove
the (7) nuts/bolts and insert a knife blade between the scroll halves to
cut through the factory applied sealant. Separate the two halves.
The impeller can be removed by loosening the (2) 3/8-24 set screws,
removing the 10-32 screw and retainer assembly. With an appropriate
wheel puller, remove the impeller.
The motor can now be removed, if necessary, by loosening the
attachment hardware.
Re-assembly of motor/impeller combination requires proper alignment.
Make sure the impeller has a 1/4" (6 mm) clearance off the inside wall
of the scroll. Be certain of proper motor alignment and free rotation.
Step 1
Step 2
Step 3
Step 4
To Change the Motor and/or the Impeller
Disassembly and removal/replacement of any pump components
must be done by a service contractor or electrician qualified in
the installation and service of gas-fired heating equipment.
Failure to follow these instructions can compromise pump
operation and void warranty.
CAUTION
EP-100 PUMP INSTALLATION, OPERATION AND SERVICE MANUAL