State Industries SW 37-670 manuale d’uso

PRINTED 01 10 316393-000 Instruction Manual PLACE THESE INSTRUCTIONS ADJACENT TO BOILER AND NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE. COMMERCIAL ELECTRIC BOILERS Thank you for buying this energy efficient boiler from us. We appreciate your confidence in our products. MODELS SW 37-670 INST ALLA TION - OPERA TION - SERVICE - MAINTENANCE - LIMITED W [...]

2 SAFE INST ALLA TION, USE AND SERVICE Y our safety and the safety of others is extremely important in the installation, use, and servicing of this boiler . Many safety-related messages and instructions have been provided in this manual and on your own boiler to warn you and others of a potential injury hazard. Read and obey all safety messages and[...]

3 GENERAL SAFETY INFORMA TION When servicing this unit, verify the power to the unit is turned off prior to opening the control cabinet door . PRECAUTIONS DO NOT USE THIS APPLIANCE IF ANY P ART HAS BEEN UNDER W A TER. Immediately call a qualied service technician to inspect the appliance and to replace any part of the control system which has be[...]

4 T ABLE OF CONTENTS SAFE INST ALLA TION, USE AND SERVICE...........................................................2 GENERAL SAFETY INFORMA TION .......................................................................3 Precautions ....................................................................................................3 Hydrogen Gas (Fla[...]

5 DIMENSION DA T A SIZES AND DA T A NW37 THRU NW150 Model Number D E F G** H J K S T Inlet* & Outlet* Boiler Drain Prex Gal. Cap. Std. KW Input SW SW SW SW SW SW SW SW 37 37 37 37 37 37 37 37 45K 60K 75K 90K 105K 120K 150K 180K 32 32 32 32 32 32 32 32 30 30 30 30 30 30 30 30 12 12 12 12 12 12 12 12 42 42 42 42 42 42 42 42 12 1/2 12 1/2 12 1/[...]

6 SIZES AND DA T A NW220 THRU 670 Model Number D E F G** H J K S T Inlet* & Outlet* Boiler Drain Prex Gal. Cap. Std. KW Input SW SW SW SW SW SW SW 220 220 220 220 220 220 220 780K 840K 900K 960K 1020K 1080K 1 140K 60 60 60 60 60 60 60 50 50 50 50 50 50 50 25 25 25 25 25 25 25 71 71 71 71 71 71 71 21 21 21 21 21 21 21 2 2 2 2 2 2 2 25 1/2 25 [...]

7 DIMENSION DA T A (cont’d) BOILER SPECIFICA TIONS (ST ANDARD) Model Number BTU Output Gal./Hr . 100°F Rise Number of Elements Number of Steps * Standard Number and KW of Steps * Amperage 3 Phase Prex Gal. Cap. Std. KW Input 208V 240V 480V 575V SW SW SW SW SW SW SW SW 37 37 37 37 37 37 37 37 45K 60K 75K 90K 105K 120K 150K 180K 153,585 204,720[...]

8 FEA TURES AND COMPONENTS ACTUAL CONFIGURA TION MA Y V ARY .[...]

9 LOCA TING THE BOILER APPROV ALS MODEL AND RA TING F ACTS TO CONSIDER ABOUT THE LOCA TION Carefully choose a location for the boiler . The placement is a very important consideration for the safety of the occupants in the building and for the most economical use of the appliance. Whether replacing an old boiler or putting the boiler in a new locat[...]

10 REQUIRED ABILITY Installation and service of this boiler requires ability equivalent to that of a qualied agency (page 2) in the eld involved. Plumbing and electrical work is required. GENERAL The installation must conform with these instructions and the local code authority having jurisdiction and the requirements of the power company . I[...]

11 CLOSED W A TER SYSTEMS W ater supply systems may , because of code requirements or such conditions as high line pressure, among others, have installed devices such as pressure reducing valves, check valves, and back flow preventers. Devices such as these cause the water system to be a closed system. THERMAL EXP ANSION As water is heated, it expa[...]

12 ELECTRICAL DA T A GENERAL Check the boiler model and rating plate information against the characteristics of the branch circuit electrical supply . Do not connect the boiler to an improper source of electricity . V oltage applied to the boiler should not vary more than + 5% to -10% of the model and rating plate marking for satisfactory operation[...]

13 WIRING DIAGRAMS WIRING DIAGRAMS DIAGRAM 1. THREE PHASE DEL T A WITH THERMOST A T DIAGRAM 2. THREE PHASE WYE WITH THERMOST A T NOTE(S): 1. IF A MANUAL RESET HLMT IS USED, THE SECOND AUTO RESET HLMT SWITCH IS NOT USED. STD. WIRING OPTIONAL OR FIELD WIRING AS REQ’D NOTE(S): 1. IF A MANUAL RESET HLMT IS USED, THE SECOND AUTO RESET HLMT SWITCH IS N[...]

14 DIAGRAM 3. THREE PHASE DEL T A WITH STEP CONTROL DIAGRAM 4. THREE PHASE WYE WITH STEP CONTROL NOTE(S): 1. SUBSTITUTE A MANUAL RESET HLMT SWITCH FOR ONE(1) OF THE AUTO RESET HLMT SWITCHES. STD. WIRING OPTIONAL OR FIELD WIRING AS REQ’D CONT ACTOR COIL INDICA TION LIGHT NOTE(S): 1. SUBSTITUTE A MANUAL RESET HLMT SWITCH FOR ONE(1) OF THE AUTO RESE[...]

15 OPERA TION IMPORT ANT IT IS RECOMMENDED THA T A QUALIFIED SERVICE TECHNICIAN PERFORM THE INITIAL FIRING OF THE BOILER. A T THIS TIME THE USER SHOULD NOT HESIT A TE TO ASK THE TECHNICIAN ANY QUESTIONS WHICH THEY MA Y HA VE IN REGARD TO THE OPERA TION AND MAINTENANCE OF THE BOILER. BEFORE FILLING THE SYSTEM FOR OPERA TION the hot water system shou[...]

16 TEMPERA TURE CONTROLS The boilers covered in this instruction manual are equipped with (adjustable) thermostat or step control to regulate water temperature and other controls to provide safety features. See the wiring diagrams on page 13 & 14 and/or literature included with this manual for additional information. Hot water temperatures requ[...]

17 MAINTENANCE Boiler maintenance includes periodic tank ushing and cleaning, and removal of lime scale from the heating elements. Circulating pumps should be oiled. MAINTENANCE SCHEDULE Component Operation Interval Required T ank Flushing Monthly Sediment Removal As Needed Elements Lime Scale Removal As Needed UN•LIME ® Delimer and element g[...]

18 Lime scale should be removed from the elements by dissolving the accumulation in UN•LIME® delimer . UN•LIME is a non-muriatic delimer , available through your dealer or distributor . Do not use muratic or hydrochloric acid base deliming solutions to remove lime scale from the elements. Do not pour delimer into tank. All models: 1. Turn of f[...]

19 SW-37 THRU SW -670 ELECTRIC HOT W A TER BOILER LIMITED W ARRANTY State W ater Heaters, the warrantor , extends the following LIMITED WARRANTY to the owner of this boiler . 1. THE T ANK If the tank in this boiler shall prove upon examination by the warrantor to have leaked due to natural corrosion from water therein, during the FIRST year afte r [...]

A DIVISION OF A. O. SMITH CORPORA TION RENTON, W ASHINGTON T echnical Support: 800 527-1953 Parts Department: 800 433-2515 www .statewaterheaters.com[...]