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Table of Contents
Stainless Steel, Indirect Water Heaters
INSTALLATION AND OPERATING INSTRUCTIONS
1. The heat transfer-medium must be water or other nontoxic fluid having a
toxicity rating or Class of 1, as listed in Clinical Toxicology of Commercial
Products, 5th edition.
2. The pressure of the heat transfer medium must be limited to a maximum of
30 PSIG by an approved safety or relief valve.
980155 Rev C - 02/18
Mega-Stor
CAUTION
5003502
II
®
Velocity Boiler Works, LLC
P.O. Box 14818
3633 I Street
Philadelphia, PA 19134
www.velocityboilerworks.com
VELOCIT
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Related Manuals for Velocity MS2-030
Summary of Contents for Velocity MS2-030
- Page 1 2. The pressure of the heat transfer medium must be limited to a maximum of 30 PSIG by an approved safety or relief valve. VELOCIT 5003502 Velocity Boiler Works, LLC P.O. Box 14818 3633 I Street Philadelphia, PA 19134 www.velocityboilerworks.com...
- Page 3 IMPORTANT INFORMATION - READ CAREFULLY NOTE: The equipment shall be installed in accordance with those installation regulations enforced in the area where the installation is to be made. These regulations shall be carefully followed in all cases. Authorities having jurisdiction shall be consulted before installations are made.
- Page 4 WARNING Scald Hazard. This indirect water heater requires regular maintenance and service to operate safely. Follow the instructions contained in this manual. 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.
- Page 5 WARNINGS FOR THE HOMEOWNER FOLLOW ALL INSTRUCTIONS and warnings protect walls, carpets, and valuables from water printed in this manual and posted on the indirect that could leak from the indirect water heater. water heater. PROTECT YOUR HOME IN FREEZING MAINTAIN THIS PRODUCT.
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Page 6: Table Of Contents
CONTENTS Product Description ........5 II. Specifications ........5 III. -
Page 7: Product Description
The maximum possible heat transfer rate across the coil (heat input) is less than 200,000BTU/hr with 210F potable water provided that boiler or heat source water temperature is limited to: MS2-030 – MS2-075: 250F MS2-119: 220F All models are therefore outside of the scope of both ASME Section IV, part HLW and ASME Section VIII when installed in accordance with these instructions and with the boiler or heat source water temperature limited as shown above. - Page 8 30-3/4 LIFTING LUG T & P VALVE HOT WATER OUT TO BOILER SUPPLY THERMOSTAT TO BOILER RETURN COLD WATER IN DRAIN MS2-119 MS2-030 THRU MS2-075 TABLE 2.3: PHYSICAL SPECIFICATIONS Potable Dimensions in Inches Weight Model Volume (Gal.) Net Full MS2-030 30.1...
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Page 9: Before Starting Installation
III. BEFORE STARTING INSTALLATION 1) Be sure that the planned installation is in accordance with all local codes. 2) Be certain the domestic water supply to the indirect water heater (IWH) has physical and chemical characteristics that fall within the limits shown below. Where questions exist as to the composition of the water on the job, a qualified water treatment expert should be consulted. 3) Read and understand all installation requirements in this manual. -
Page 10: Piping
V. PIPING A) BOILER SIDE PIPING CAUTION 1. The heat transfer-medium must be water or other nontoxic fluid having a toxicity rating or Class of 1, as listed in Clinical Toxicology of Commercial Products, 5th edition. 2. The pressure of the heat transfer medium must be limited to a maximum of 30 PSIG by an approved safety or relief valve. - Page 11 Since 59.7 is less than the 90ft maximum equivalent length shown in Table 5.2, the planned system will deliver the required flow using either a Taco 007 or Grundfos 15-42F. TABLE 5.2: SELECT ACCEPTABLE INDIRECT WATER HEATER LOOP CONFIGURATIONS Circulator Model Max Equiv. Model Pipe Size Length (ft) Taco Grundfos MS2-030 1” 15-42F MS2-040 1” 15-42F MS2-050 1” 15-42F MS2-075 1”...
- Page 12 TABLE 5.3: EQUIVALENT LENGTHS FOR SELECT VALVES AND FITTINGS (MAY BE USED FOR COPPER OR THREADED FITTINGS) Nominal Pipe Size Fitting 1” 1-1/4” 90° Elbow 45° Elbow 90° Turn in Tee Run of Tee Gate Valve (Open) Full Port Ball Valve Swing Check Valve 10.0 Zone Valve (3.5 Cv)
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Page 13: Domestic Piping
Drain (Required) - Used to drain the IWH for inspection or servicing. This drain valve is supplied by the installer. For models MS2-030 through MS2-075, install this valve in the cold water supply where it can be used to drain the tank. A dedicated drain valve connection is provided on the MS2-119. - Page 14 FIGURE 5.5: AQUASTAT INSTALLATION T&P valve discharge to the outdoors or to other locations where water in this pipe could freeze or become blocked by debris. Make sure all discharge piping is pitched so as to allow complete drainage of any water in the line. h) Heat Trap (Optional) - The heat trap retards the migration of heat from the IWH up the hot water supply pipe.
- Page 15 If IWH is replacing a tankless coil, drain tankless coil and leave open to atmosphere. Do not plug coil. TABLE 5.7: MINIMUM T&P VALVE CAPACITY REQUIREMENTS (BTU/hr) Max Boiler Water Limit Setting Model 220°F or Less 221° - 250°F MS2-030 100,000 112,300 MS2-040 100,000 133,700...
- Page 16 FIGURE 5.8: DOMESTIC HOT WATER PIPING USING A MIXING VALVE WARNING If anti-scald or anti-chill protection is required, use devices specifically designed for such service. Install in accordance with their manufacturer’s instructions. CAUTION Do not attempt to use the anode rod tapping to make field connections of any type. Attempts to do so may result in unreliable operation or premature tank failure.
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Page 17: Wiring
VI. WIRING The following general notes apply to all wiring: 1) Wiring must be done in accordance with all codes. In the absence of any codes the system must be wired in accordance with the National Electric Code (ANSI/NFPA 70). 2) The indirect water heater (IWH) is equipped with Honeywell a L4080B series temperature control. - Page 18 B. ZONE VALVES Figure 6.2 is a connections diagram for a zone system using Honeywell V8043F motorized zone valves. The motor on these valves is connected between TH and TR. TH/TR is provided for the electrician’s convenience as a binding post and is connected to nothing inside the valve.
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Page 19: Start-Up And Check-Out
VII. START-UP AND CHECK-OUT 1) Make sure that the system is free of leaks and that air is purged from the system. DANGER Never attempt to fill a hot empty boiler WARNING Fix any leaks found before proceeding further. Leakage from the boiler piping can result in severe damage to the boiler. -
Page 20: Maintenance
* If the indirect water heater is equipped with an anode rod, inspect the rod on an annual basis and replace if necessary. This anode rod is located above the boiler supply on the MS2-030 and above the thermostat on the MS2-040 thru MS2-075 as shown in Figure 2.2. -
Page 21: Parts
* If a water treatment system is required to keep the water chemistry within the parameters shown in page 7, make sure that this system is properly maintained. IX. PARTS MEGA-STOR II Key # Part # Description Qty./Tank 3503405 Thermostat (L4080B1352) 350085 Heat conductive grease, 1/2 oz. Anode Rod Kit 220400 (MS2-030 thru MS2-075 only) - Page 22 Table A.1: Indirect Water Heater Sizing for Typical One and Two Family Units Number First Hour Number of Min. Boiler Output of Bed- Model Requirement Bathrooms (MBH) rooms (GPH) MS2-030 1 to 1 1/2 MS2-040 MS2-040 MS2-040 MS2-040 2 to 2 1/2 MS2-040 MS2-050 MS2-050 MS2-050 3 to 3 1/2...
- Page 23 Table 3.2: Maximum Possible Continuous Draw (180F Boiler Supply, 77F DHW Rise, 135F Outlet) Continuous Draw Min Boiler Output Model (Gal/min) (MBH) MS2-030 MS2-040 MS2-050 MS2-075 MS2-119 Table 3.3: AHRI First Draw Rating* Draw Rate First Draw Rating Model (GPM)
- Page 24 CONSUMER WARRANTY INFORMATION MEGA‐STOR2: STAINLESS STEEL INDIRECT WATER HEATER By this warranty statement Velocity Boiler Works, LLC of Philadelphia, Pennsylvania issues a limited warranty subject to the terms and conditions stated below. This limited warranty applies to the stainless steel indirect‐fired water heater series labeled MEGA‐STOR2. LIMITED ONE YEAR WARRANTY ON ALL MEGA‐STOR2 COMPONENT PARTS MANUFACTURED BY OTHERS: Velocity Boiler Works, LLC warrants that its indirect‐fired water heater labeled MEGA‐STOR2 to be free from defects in material and workmanship, under normal usage, for a period of one year from the date of original installation. In the event that any part of such a water heater is found to be defective in material or workmanship during this one year period, Velocity Boiler Works, LLC will repair or replace, at its option, the defective component parts (consisting of the Honeywell Aquastat). LIMITED WARRANTY ON MEGA‐STOR2 TANK ASSEMBLY – INITIAL COVERAGE (Residential Use Only): Velocity Boiler Works, LLC further warrants that the stainless steel tank and stainless steel coil shall be free of leaks during normal use and service for an eight(8) year period from date of manufacture. Residential use is defined as a single or two‐family residence. In the event that any part of such a water heater is found to be defective in material or workmanship during this eight(8) year period, Velocity Boiler Works, LLC will repair or replace, at its option, the water heater. LIMITED LIFETIME ON MEGA‐STOR2 TANK ASSEMBLY ‐ EXTENDED COVERAGE (Residential Use Only): Velocity Boiler Works, LLC further warrants that the stainless steel tank and stainless steel coil shall be free of leaks during normal use and service for the remaining lifetime of the water heater. In the event that any part of such a water heater is found to be defective in material or workmanship during this extended period, Velocity Boiler Works, LLC will repair or replace, at its option, the water heater. This extended warranty coverage is only available to the original owner of the indirect fired water heater, in its original installation location. This extended warranty coverage is non‐transferable. If at the time of request for extended coverage, the original consumer/purchaser cannot provide a copy of the on‐line warranty registration receipt, the warranty period shall revert to the “initial coverage” of eight (8) years from the date of manufacture. Product must be registered within 90 days of installation to acquire the Limited lifetime coverage. LIMITED WARRANTY ON MEGA‐STOR2 TANK ASSEMBLY (Commercial Use Only): Velocity Boiler Works, LLC. further warrants that the stainless steel tank and stainless steel coil shall be free of leaks during normal use and service for a period of five(5) years from date of installation when installed in commercial buildings, multiple family dwellings (other than single or two‐family), or institutional applications. In the event that any part of such a water heater is found to be defective in material or workmanship during this five (5) year period, Velocity Boiler Works, LLC will repair or replace, at its option, the water heater. It is expressly agreed between Velocity Boiler Works, LLC and the original consumer/purchaser that repair or replacement are the exclusive remedies of the original consumer/purchaser. THIS WARRANTY DOES NOT COVER: Any component parts that are part of the indirect‐fired water heater system but not furnished by Velocity Boiler Works, LLC as part of the residential indirect‐fired water heater. ...