Instruction/ maintenance manual of the product SW 37-670 State Industries
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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.
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.
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.
4 T ABLE OF CONTENTS SAFE INST ALLA TION, USE AND SERVICE...........................................................2 GENERAL SAFETY INFORMA TION .......................................................................3 Precautions ....................
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 Prex Gal. Cap. Std. KW Input SW SW SW SW SW SW SW SW 37 37 37 37 37 37 37 37 4.
6 SIZES AND DA T A NW220 THRU 670 Model Number D E F G** H J K S T Inlet* & Outlet* Boiler Drain Prex Gal. Cap. Std. KW Input SW SW SW SW SW SW SW 220 220 220 220 220 220 220 780K 840K 900K 960.
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 Prex Gal.
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.
10 REQUIRED ABILITY Installation and service of this boiler requires ability equivalent to that of a qualied 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 .
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.
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 .
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.
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.
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.
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.
17 MAINTENANCE Boiler maintenance includes periodic tank ushing and cleaning, and removal of lime scale from the heating elements. Circulating pumps should be oiled.
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.
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 .
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.
An important point after buying a device State Industries SW 37-670 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought State Industries SW 37-670 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data State Industries SW 37-670 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, State Industries SW 37-670 you will learn all the available features of the product, as well as information on its operation. The information that you get State Industries SW 37-670 will certainly help you make a decision on the purchase.
If you already are a holder of State Industries SW 37-670, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime State Industries SW 37-670.
However, one of the most important roles played by the user manual is to help in solving problems with State Industries SW 37-670. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device State Industries SW 37-670 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
