Controls - Pressure Switches - Suf 120 Through 250 - State Water Heaters SUF 130 300 Service Handbook

ULTRAFORCE COMMERCIAL GAS WATER HEATER
CONTROLS – PRESSURE SWITCHES – SUF 120 through 250
BLOCKED INLET
PRESSURE SWITCH
M ODEL PRESSURE
All 0.85"WC
Norm ally Clos e d /
Ope n on a Ris e in
Pres s ure
Tolerance +/-.05"WC
Note: Check the website
Pressure Switches" under "Literature/Service Handbooks"
State Water Heaters – Technical Training Department 28
SUF 120 thru 400 SERVICE HANDBOOK
LOW GAS PRESSURE
SWITCH
M ODEL PRESSURE
Natural 4.0"WC
LP 8.0"WC
Norm ally Ope n / Clos e
on a Ris e in Pre s s ure
Tole rance +/-.05"WC
Top View of Pressure Switches
www.statewaterheaters.com
Servicing should only be performed by a Qualified Service Agent
BLOCKED OUTLET
PRESSURE SWITCH
M ODEL SWITCH
120N +1.2"WC
150N +0.98"WC
199N +1.06"WC
250N +4.0"WC
120LP +1.3"WC
150LP +1.3"WC
199LP +4.0"WC
250LP +2.0"WC
Norm ally Clos e d /
Ope n on a Rise in
Pres s ure
Tolerance +/-.05"WC
for Technical Bulletin S023-06 "Air
BLOWER PROVER
PRESSURE SWITCH
M ODEL PRESSURE
All +.075"WC
Norm ally Ope n / Clos e
on a Ris e in Pre s s ure
Tole rance +/-.05"WC
Ashland City, Tennessee © 2009
198152-002