Hubbell Electric Heater Company EMV Manuel D’Utilisation

Page de 22
 
 
HUBBELL 
ELECTRIC HEATER COMPANY 
P.O. BOX 288 
STRATFORD, CT  06615 
 
PHONE:  (203) 378-2659  
FAX:        (203) 378-3593 
INTERNET:   
 
-- IMPORTANT -- 
Always reference the full model number and serial number when calling the factory. 
 
 
WARNING / CAUTION 
 
1.  Tank is to be completely filled with water and all air is to be vented before energizing. 
2.  Due to the rigors of transportation, all connections should be checked for tightness before heater is 
placed in operation. 
 
3.  Safety relief valve must be installed in tapping provided. 
 
4.  The refractory material used in heating elements may absorb some moisture during transit, periods of 
storage, or when subjected to a humid environment. This moisture absorption results in a cold insulation 
resistance of less than twenty (20) megohms. If this heater has been subjected to the above condition, 
each heating element must be checked for insulation resistance before energizing. A low megohm 
condition can be corrected by removing the terminal  hardware and baking the element in an oven at 
350°F -700°F for several hours or until the proper megohm reading is obtained. 
 
5.  KEEP AWAY FROM LIVE ELECTRICAL CIRCUITS. 
Do not perform any maintenance, make any adjustments, or replace any components inside the control 
panel with the high voltage power supply turned on. Under certain circumstances, dangerous potentials 
may exist even when the power supply is off. To avoid casualties, always turn the power supply safety 
switch to off, turn the charge or ground the circuit before performing any maintenance or adjustment 
procedure. 
 
6.  The unit is designed to operate at pressure not more than 150 psi. 
 
7. 
Generalized instructions and procedures cannot anticipate all situations. For this reason, only qualified 
installers should perform the installations. A qualified installer is a person who has licensed training and 
a working knowledge of the applicable codes regulation, tools, equipment, and methods necessary for 
safe installation of an electric resistance water heater. If questions regarding installation arise, check 
your local plumbing and electrical inspectors for proper procedures and codes. If you cannot obtain the 
required information, contact the company.