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Velocity MS2-030, Installation And Operation Instructions Manual, Page: 1 / 24

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VELOCITY LOGO CMYK COLORS

Mega-Stor

®

 II

Stainless Steel, Indirect Water Heaters

INSTALLATION AND OPERATING INSTRUCTIONS

 

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.

Velocity Boiler Works, LLC

P.O. Box 14818

3633 I Street

Philadelphia, PA  19134

www.velocityboilerworks.com

5003502

980155 Rev C - 02/18

Summary of Contents for MS2-030

Page 1: ...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...

Page 2: ...2...

Page 3: ...to bring attention to the presence of hazards of various risk levels or to important information concerning product life The City of New York requires a Licensed Master Plumber supervise the installat...

Page 4: ...direct water heater contains very hot water under high pressure Do not unscrew any pipe fittings nor attempt to disconnect any components without positively assuring the water is cool and has no press...

Page 5: ...this indirect water heater may freeze and cause extensive property damage Do not leave the heating system unattended during cold weather unless alarms or other safeguards are in place to prevent such...

Page 6: ...s 5 III Before Starting Installation 7 IV Locating The Indirect Water Heater 7 V Piping 8 A Boiler Side Piping 8 B Domestic Piping 11 VI Wiring 15 VII Start up and Check out 17 VIII Maintenance 18 IX...

Page 7: ...nical Toxicology of Commercial Products latest edition 4 The heat source must be used in accordance with its manufacturer s instructions and those of the authority having jurisdic tion IMPORTANT NOTE...

Page 8: ...eight A B C D E Net Full MS2 030 30 1 33 1 8 6 1 8 10 1 2 21 1 8 69 328 MS2 040 37 9 39 3 8 6 1 8 10 1 2 24 1 4 82 407 MS2 050 50 6 49 3 4 6 1 8 10 1 2 26 5 8 112 545 MS2 075 74 0 68 3 4 6 1 8 10 1 2...

Page 9: ...is highly susceptible to water damage install the IWH in a pan with a drain 3 The IWH may be located some distance from the boiler provided the zone system is designed to provide the flow called for i...

Page 10: ...circulators pipe size and equivalent length that will result in the flow rates called for in Table 2 1 FIGURE 5 1 BOILER SIDE PIPING USING CIRCULATOR ZONES CAUTION 1 The heat transfer medium must be...

Page 11: ...own in Figure 5 4 calculation of equivalent length is exactly the same as shown above except that IWH loop is the shaded piping in Figure 5 4 i e the IWH loop does not pass through the boiler Example...

Page 12: ...e Valve Open 0 7 0 8 Full Port Ball Valve 0 7 0 8 Swing Check Valve 7 0 10 0 Zone Valve 3 5 Cv Not Recommended Zone Valve 8 0 Cv 46 1 Air Scoop 3 0 8 0 TABLE 5 3 EQUIVALENT LENGTHS FOR SELECT VALVES A...

Page 13: ...e IWH in the event that this is necessary f 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 th...

Page 14: ...the outlet water temperature to rise significantly above the control setting The temperature of water going to the fixtures may be more carefully controlled through the use of a thermostatic mixing va...

Page 15: ...40 100 000 133 700 MS2 050 100 000 156 300 MS2 075 115 000 195 600 MS2 119 199 900 Note 1 1 Not permitted unless the combined output of all boilers connected to this indirect water heater is less than...

Page 16: ...for such service Install in accordance with their manufacturer s instructions FIGURE5 8 DOMESTICHOTWATERPIPINGUSINGAMIXINGVALVE CAUTION Do not attempt to use the anode rod tapping to make field connec...

Page 17: ...1 is a connections diagram for a non priority circulator zone system using Honeywell R845A s The R845A is equipped with two sets of contacts 3 4 and 5 6 which become made when the T and T terminals ar...

Page 18: ...ts in the application of 24 volts across the motor in that zone s zone valve This drives open the zone valve When the valve has opened the endswitch in that zone valve makes and brings on the boiler F...

Page 19: ...energy efficient operation adjust the control for the minimum water temperature necessary to meet domestic water needs Because hot water presents a scald hazard it is best to set the control at 120 F...

Page 20: ...there is an oil lubricated circulator in the system make sure that it is lubricated as called for by the circulator manufacturer FIGURE 7 1 TEMPERATURE CONTROL APPROXIMATE TIME TEMPERATURE RELATIONSH...

Page 21: ...MEGA STORII The IWH depends upon the boiler for a source of heat and is therefore only as reliable as the boiler Make sure that the boiler is maintained in accordance with the boiler manufacturer s i...

Page 22: ...thod to determine the domestic hot water demand such as that shown in the Service Water Heating chap ter of the ASHRAE Applications Handbook Then use the data provided in Tables 2 1 A 2 and A 3 to sel...

Page 23: ...Table 3 3 AHRI First Draw Rating a b c Model Draw Rate GPM First Draw Rating Gal MS2 030 2 3 23 MS2 040 2 7 31 MS2 050 3 2 44 MS2 075 3 9 69 MS2 119 6 9 81 First Draw Rating is the amount of stored wa...

Page 24: ...lace 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 c...

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