Utica Boilers H2OBT Operation and Installation Manual
Contents
1. 0 or below 6 0 and or chloride concentrations exceeding 80 parts per million ppm 6 6 This Limited Warranty in no way can be considered as a guarantee of workmanship of an installer or repairman connected with the installation or repair of the Product or as imposing on ECR liability of any nature for unsatisfactory performance as a result of faulty workmanship in the installation or service of the Product which liability is hereby expressly disclaimed 7 The furnishing of replacement parts under the terms of this Limited Warranty will apply to the original warranty period and will not serve to extend such period 8 This Limited Warranty only applies to Products installed in the United States or Canada 9 The remedy for breach of this Limited Warranty is expressly limited to the repair or replacement of any part found to be defective under conditions of normal use unless otherwise specifically set forth herein and the remedy for breach of this Limited Warranty statutory duty or by reason of tort including without limitation negligence does not extend to liability for incidental special or consequential damages or losses such as loss for the use of the material inconvenience or loss of time The maximum liability of ECR in connection with the sale of the Product shall not in any case exceed the price of the part claimed to be defective or the price of the Product if the entire Product is claimed to be defective This Limited Warranty i2. gas vapors DO NOT try to operate any appliance DO NOT touch any electrical switch or use any phone in the building Immediately call the gas supplier from a remote located phone Follow the gas supplier s instructions or if the supplier is unavailable contact the fire department II IMPORTANT SAFETY INSTRUCTIONS WARNING When using electrical appliances basic safety precautions to reduce the risk of fire electric shock or injury to persons should be followed including READ ALL INSTRUCTIONS BEFORE USING THIS BUFFER TANK 1 This tank must be grounded if any electrical control is used Connect only to properly grounded outlet 2 Install or locate this buffer tank only in accordance with the provided installation instructions 3 Use this tank only for its intended use as described in this manual 4 As with any appliance close supervision is necessary when used by children 5 This tank should be serviced only by qualified personnel Contact nearest authorized service facility for examination repair or adjustment SAVE THESE INSTRUCTIONS III Application The primary application of a buffer tank is to reduce heat pump chiller or boiler short cycling Hydronic buffer tanks are used in systems operating below the design load condition which is most of the time or in systems having several low BTU cooling or heating loads calling at different times This can cause the heat pump or the boiler to short cycle resulting in reduce
3. 15 797 1310 Customer Service Fax 315 724 9319 E Mail info ecrinternational com PN 240009218 Rev A 10 11 REPLACEMENT PARTS Part Part No Description T P Relief Valve TP 3 150 psi 210deg F 4 probe ANSI AGA Cert Thermostat L4080 Honeywell L4080B Thermostat Well R Well 3 Immersion Well 32 2 NPT H O Wy innovative living ECR International Inc 2201 Dwyer Avenue Utica NY 13504 4729 web site www ecrinternational com
4. MODELS H OBT402 H OBT40112 H OBT40114 H OBT402WC H OBT40112WC H OBT40114WC H OBT602 H OBT60112 H OBT60114 H OBT602WC H OBT60112WC H OBT60114WC H OBT802 H OBT80112 H OBT80114 H OBT802WC H OBT80112WC H OBT80114WC H OBT1152 H OBT115112 H 0BT115114 H OBT1152WC H OBT115112WC H OBT115114WC An ISO 9001 2008 Certified Company H O Hydronic Buffer Tanks INSTALLATION OPERATION amp MAINTENANCE MANUAL BK 40 60 80 115 Gallon 2 2 inch NPT Pipe Connections 112 1 inch NPT Pipe Connections 114 1 inch NPT Pipe Connections WC With Coil ID LISTED Intertek Conforms to UL STD 174 Certified to CAN CSA STD C22 2 No 110 94 Information and specifications outlined in this manual in effect at the time of printing of this manual ECR International reserves the right to discontinue change specifications or system design at any time without notice and without incurring any obligation whatsoever ECR International Inc 2201 Dwyer Avenue Utica NY 13501 web site www ecrinternational com P N 615000057 Rev B 08 2012 Table of Contents I General Information amp Safety Instructions rr 2 II Important Safety Instructions rr 3 IL FO OW Ca ON e auda iaca ni ai n i i ia aa MN i at dica ea 3 I General Information IMPORTANT INFORMATION READ CAREFULLY NOTE The equipment shall be installed in accordance with those installation regulations required in the area where t
5. Y HYDRONIC BUFFER TANKS amp SOLAR HOT WATER STORAGE TANKS By this Limited Warranty ECR International Inc ECR issues limited warranties from the date of original installation of the Hydronic Buffer Tank or Solar Hot Water Storage Tank Product to the person that purchased the new Product directly a from the ECR brand dealer or b in the case of a newly constructed home from the contractor who purchased such new Product directly from an ECR brand dealer or wholesaler for installation and use in the newly constructed home such person in either case referred to hereinafter as the Original Purchaser subject to the terms and conditions set forth below WARRANTY COVERAGE FOR RESIDENTIAL USAGE The following limited warranty set forth in this section shall apply to only the original installation of the Product in a single family dwelling used without interruption by the Original Purchaser as his or her primary residence Residential Application Residential Application shall also mean usage in a multiple family dwelling provided that the Product services only one 1 dwelling in such multiple family dwelling I LIMITED ONE YEAR WARRANTY ECR warrants its Product used in Residential Applications to be free from defects in material and workmanship under normal usage and service for a period of one 1 year from the date of original installation In the event that the Product is found to be defective in material or wo
6. d on the system with the smallest zone calling for heat 4 The allowable tank temperature rise deg F This varies depending on the type of heating or cooling system used and on the design of the distribution system Chillers may require a tight 6 deg F differential to assure good dehumidification and prevent freezing heat pumps may require a 10 deg F differential to maintain a high COP and boilers with hydronic heating distribution systems may require a differential anywhere between 10 to 40 deg F depending on the application The following formula determines the tank volume V TX Q heat input Q min heat load Tank temp rise X 500 V Buffer tank volume gallons T desired heat source on cycle min Q heat source heat source output BTU HR Q min heat load heat output to minimum load Tank temp rise deg F Water to Water Heat Pump Example Town and Country Mechanical wants a minimum heat pump on time of 10 minutes The heat pump output is 46 500 BTU HR The smallest zone is 7 000 BTU HR bathroom The allowable temperature differential is 90 to 100 deg F for the radiant heat zones V 10X 46 500 7 000 79 0 Gallons minimum volume Choose the HF 80BT buffer tank 100 90 x 500 Moti This i a Conceptual piping diagram and la not intended to include even installation detail Hydronic Buffer Tank applied to Water source heat pump application 5 ECR International Inc LIMITED WARRANT
7. d operating efficiency and shorter equipment life The hydronic buffer tanks are built with 4 connections Two connections can be piped to the heat pump or boiler and two connections can be piped to the distribution system If piped correctly the tank can serve as both a thermal buffer and a hydraulic separator The heat pump or boiler can be hydraulically decoupled from the distribution system The tanks are all stainless steel construction with R 12 insulation and an ABS jacket A 3 8 ID thermal well is located mid tank Thermistors to be inserted 3 into the well or the well will accept the Honey well L4006A controls WARNING Do not operate the water heaters in areas where the Ph is above 8 0 or below 6 0 and or with chloride concentrations greater than 100 parts per million ppm ECR s standard warranty does not cover problems caused by improper water Ph or excessive levels of chlorides Volume gal H2040BTXXX 42 0 ERRE hosom 60 420 _ r200 80 52 0 c D Connections Max Working Diameter Pressure psi The buffer tanks are all stainless steel construction insulated with a thermoplastic jacket WARNING DO NOT use in potable water systems WARNING Use this vessel only in hydronic heating systems The installer must comply with all plumbing codes Do not operate above the temperature or pressure specified on the rating plate Failure to comply may result in personal injury property damage or death An e
8. he installation is to be made These regulations shall be carefully followed in all cases Authorities having jurisdiction shall be consulted before installations are made All wiring on water heaters shall be in accordance with the National Electrical Code and or local regulations A WARNING Improper installation adjustment alteration service or maintenance can cause property damage personal injury or loss of life Read and understand the entire manual before attempting installation start up operation or service Installation and service must be performed only by an experienced skilled installer or service agency This water heater contains very hot water under high pressure Do not unscrew any pipe fittings or attempt to disconnect any components of this water heater without positively assuring that the water is cool and has no pressure Always wear protective clothing and equipment when installing starting up or servicing this water heater to prevent scalding injuries Do not rely on the pressure and temperature gauges to determine the temperature and pressure of the water heater This water heater contains components that become very hot when the boiler is operating Do not touch any components unless they are cool Failure to follow all instructions in the proper order can cause personal injury or death Read all instructions including all those contained in component manufacturers manuals before installing starting up operating
9. installed serviced or operated including without limitation operated with insufficient water allowed to freeze or subjected to flood conditions 4 In order for this Limited Warranty to be effective a the Product must have been assembled in strict compliance with installation instructions furnished with the Product and b the Product sections must not have been damaged during shipment and installation 5 ECR shall not be liable for any damages defaults or delays in performance under this Limited Warranty caused by a any contingency beyond its control including without limitation a shortage or reduced supply of energy or raw materials freezing flood fire wind or lightening b the failure of external wiring piping or other attachments and accessory products not integral with the Product c installation service or operation that is not in compliance with all applicable federal state and provincial laws or regulations d misapplication or the use of the Product for purposes other than for which it was designed e the use of parts not supplied or designated by ECR f failure to maintain the Product free of water sediments or scale deposits g components of a Product which are not defective but must be replaced during the warranty period as a result of reasonable wear and tear h failure of a component control or component part other than a component part manufactured solely by ECR or i potable water with a Ph exceeding 8
10. maintaining or servicing the water heater A CAUTION To reduce the risk of excessive pressures and temperatures in this water heater install temperature and pressure protective equipment required by local codes but no less than a combination temperature relief valve certified by a nationally recognized testing laboratory that maintains periodic inspection of production of listed equipment or materials as meeting the requirements for Relief Valves and Automatic Shutoff Devices for Hot Water Supply Systems ANSI Z21 22 latest edition This valve must be marked with a maximum set pressure not to exceed the marked working pressure of the water heater Install the valve into an opening provide and marked for this purpose in the water heater and orient it or provide tubing so that any discharge from the valve will exit only within 6 inches above or at any distance below the structural floor and cannot contact any live electrical part The discharge opening must not be blocked or reduced in size under any circumstances The heat transfer medium must be water or other non toxic fluid having a toxicity rating or class of 1 as listed in clinical Toxicology of Commercial Products latest edition The pressure of the heat transfer medium must be limited to a maximum of 60 psig by an approved safety or relief valve A DANGER DO NOT store or use gasoline or other flammable vapors or liquids in the vicinity of this or any other appliance If you smell
11. rkmanship during this one year period then ECR will repair or replace at its option the defective Product II LIMITED WARRANTY ON STORAGE TANK HEAT EXCHANGER ASSEMBLY ECR warrants that the Product s storage tank heat exchanger assembly shall be free from leaks during normal usage and service for a period of fifteen 15 years from the date of original installation In the event that a leak should develop and occur within this limited warranty period as a result of defective material of workmanship ECR will replace the Product During the five 5 year period from the date of original installation ECR s replacement of the defective Product shall be without charge From the sixth 6th year from the date of original installation to the fifteenth 15th year from the date of original installation ECR s replacement of the defective Product shall be made upon payment by the Original Purchaser to ECR of a proportionate charge based upon the time the Product has been in service The proportionate charge will be equal to the appropriate percentage of the list price of such Product at the time the warranty claim is made and will be determined as follows Within the sixth 6th year through the seventh 7th year from the original date of installation sixty percent 60 Within the eighth 8th year through the ninth 9th year from the original date of installation sixty five percent 65 Within the tenth 10th year through the eleventh 11th
12. s the complete and exclusive statement of warranty terms in regards to the Product 10 FOR ALL SALES NOT SUBJECT TO THE MAGNUSON MOSS WARRANTY ACT THE FOREGOING WARRANTIES ARE EXCLUSIVE AND ARE GIVEN AND ACCEPTED IN LIEU OF ANY AND ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR PARTICULAR PURPOSE FOR ALL OTHER SALES ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND OR FITNESS FOR ANY PARTICULAR PURPOSE ARE LIMITED IN DURATION TO THE PERIOD OF THIS LIMITED WARRANTY PLEASE NOTE Some states provinces and territories do not allow the exclusion or limitation of incidental or consequential damages or limitations on how long an implied warranty lasts so the above limitations and exclusions may not apply to you MISCELLANEOUS 1 The Magnuson Moss Warranty Act applies to consumer sales as contrasted with commercial sales A consumer sale is one to a buyer for personal family or household purposes and not for the purpose of resale 2 If any provision of this Limited Warranty shall be determined to be illegal unconscionable or unenforceable all other terms and provisions hereof shall nevertheless remain effective and shall be enforced to the fullest extent permitted by law The warranties made under this Limited Warranty are exclusive and may not be altered enlarged or changed by a distributor dealer or other person whatsoever other than pursuant to a wri
13. tten agreement executed by a duly authorized officer of ECR 3 This Limited Warranty is nontransferable and shall be for the benefit of the Original Purchaser of the Product only 4 This Limited Warranty gives the Original Purchaser only specific legal rights and you may have other legal rights which vary from state to state PROCEDURE FOR OBTAINING WARRANTY SERVICE 1 At the time a claim is filed under this Limited Warranty the Original Purchaser must present a copy of the original sales receipt and a deed utility bill or equivalent document evidencing both ownership of the Product and installation in the dwelling owned by the Original Purchaser 2 For prompt warranty service notify the installer who in turn will notify the ECR distributor from whom such distributor purchased the Product If this action does not result in warranty service the Original Purchaser or installer should contact ECR Customer Service see contact information below giving full particulars in support of the claim Alleged defective part or parts must be returned through trade channels in accordance with ECR s procedure currently in force for handling returned goods for the purpose of inspection or determining the cause of failure ECR will furnish the new part s to an authorized ECR distributor who in turn will furnish the part s to the heating contractor who installed the Product ECR International Inc 2201 Dwyer Avenue Utica New York13504 4729 Ph 3
14. xample of piping a buffer tank follows showing a water source heat pump application In all applications note that the tank top fitting should be piped the distribution supply line to the air purger and vent This way the tank will be self venting and no additional air vent is needed to install or maintain The objective in any application is to pipe the buffer tank such that the heating or cooling source is hydraulically uncoupled from distribution system Buffer Tank Sizing Calculating Capacity The buffer tanks are a simple cost effective way to improve overall system efficiency by reducing unnecessary equipment short cycling The recommended capacity or volume of a buffer tank is based on four variables 1 The duration of the heating or cooling source on time minutes The desired length of on time for each run cycle depends on the type of equipment used Heat pump and chiller manufacturers typically recommend a minimum of 5 to 10 minutes on time and boiler manufacturers may recommend a minimum of 10 minutes on time Check with your equipment manufacturer Generally the longer the on time the higher the overall operating efficiency 2 The minimum rate of heat input BTU HR This is based on the heat pump or chiller output or the boiler output at the minimum firing rate if the boiler has a variable input system that ramps input down as the demand decreases 3 The minimum system load BTU HR This is the demand place
15. year from the original date of installation seventy percent 70 Within the twelfth 12th year through the thirteenth 13th year from the original date of installation seventy five percent 75 Within the fourteenth 14th year through the fifteenth 15th year from the original date of installation eighty percent 80 Please Note If the Product model involved is no longer available due to product obsolescence or redesign the value used to establish the list price will be the current retail price of the nearest equivalent Product LIMITATIONS AND EXCLUSIONS 1 Under no circumstances will ECR be responsible for any other costs associated with rectifying the defective part or Product including without limitation costs associated with removing and reinstalling the defective part or Product and or its replacement part or Product and all labor and material costs connected therewith including without limitation costs associated with returning the defective part or Product to ECR 2 This Limited Warranty will not be applicable if the Product is a used or operated at a pressure over or under its rated capacity b installed for uses other than home heating c not maintained in accordance with ECR s recommendation or accepted good practice as determined by industry standards or d subjected to unauthorized alteration 3 This Limited Warranty will not be applicable if the Product has been damaged as a result of being improperly
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