A.O. Smith NW 37-670 - Manual
A.O. Smith NW 37-670 – Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.
Table of Contents:
- Page 2 – DIMENSIONAL DATA
- Page 5 – FEATURES; FOREWORD
- Page 6 – INSTALLATION; General
- Page 7 – Power Circuit
- Page 8 – WIRING DIAGRAM 208V OR 240V THREE-PHASE (DELTA) WITH STEP CONTROL; TYPICAL WIRING DIAGRAMS
- Page 9 – SYSTEM CLEANING; OPERATION; GENERAL; WARNING; FILLING
- Page 10 – MAINTENANCE
- Page 11 – CHECKLIST; Not enough or no heat; SYSTEM WATER TEST; System water test
- Page 12 – NW-37 THRU NW-670 ELECTRIC HOT WATER BOILER LIMITED WARRANTY
1
DURA-POWER MODELS NW 37- 670
COMMERCIAL ELECTRIC WATER BOILERS
•
Installation
•
Operation
•
Service
•
Maintenance
•
Limited Warranty
PLACE THESE INSTRUCTIONS ADJACENT TO THE BOILER AND NOTIFY OWNER TO KEEP FOR
FUTURE REFERENCE.BE SURE THAT THE WARRANTY INFORMATION
HAS BEEN FILLED IN ON COMPLETION OF INSTALLATION.
PRINTED IN U.S.A. 0004G 0900
PART NO. 60047-002 REV.2
FLOOD WARNING
IF THE BOILER SHOULD BECOME IMMERSED IN
WATER AT ANY TIME, THE BOILER SHOULD BE
EXAMINED BY A COMPETENT SERVICE PERSON
BEFORE IT IS RETURNED TO SERVICE.
A DIVISION OF A.O. SMITH CORPORATION
RENTON, WASHINGTON
www.hotwater.com
STANDARD
CAUTION
TEXT PRINTED OR OUTLINED IN RED CONTINS INFORMATION
RELATIVE TO YOUR SAFETY. PLEASE READ THOROUGHLY
BEFORE INSTALLING AND USING THE APPLIANCE.
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Summary
2 DIMENSIONAL DATA SIZES AND DATA 45KW THRU 720KW Model Number Inlet* & Boiler Prefix Gal.Cap. Std.KWInput D E F G** H J K S T U Outlet* Drain NW 37 45K 32 30 12 42 12 1/2 - - 20 4 42 3 1 NW 37 60K 32 30 12 42 12 1/2 - - 20 4 42 3 1 NW 37 75K 32 30 12 42 12 1/2 - - 20 4 42 2 1 NW 37 90K 32 30 12...
5 APPROVALS These designs comply with requirements of Underwriters Laboratoriesand bear the U.L. label on the cabinet. All models are built to the standards of Section lV of the AmericanSociety of Mechanical Engineers. Boiler and Pressure Code,inspected and identified by this symbol. The ASME plate ...
6 IMPORTANT IT IS RECOMMENDED THAT A QUALIFIED SERVICE TECHNICIANPERFORM THE INITIAL FIRING OF THE BOILER. AT THIS TIMETHE USER SHOULD NOT HESITATE TO ASK THE TECHNICIANANY QUESTIONS WHICH THEY MAY HAVE IN REGARD TO THEOPERATION AND MAINTENANCE OF THE BOILER. BEFORE FILLING THE SYSTEM FOR OPERATION ...
