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Dunkirk ARTESIAN 220, Инструкция по установке и эксплуатации

Дункерк ARTESIAN 220 - это высококачественный водонагреватель с инновационными технологиями. Получите подробное руководство по установке и эксплуатации в формате PDF. Скачайте бесплатно Руководство по установке и эксплуатации на manualshive.com. Максимум удобства и эффективности с Dunkirk ARTESIAN 220.

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Page 25

Содержание ARTESIAN 220

Страница 1: ...ARTESIAN 220 340 Instantaneous Indirect Water Heater By Dunkirk Boilers INSTALLATION AND OPERATING INSTRUCTIONS ENGINEERING MANUAL ...

Страница 2: ...talled on all installations Failure to do so will result in domestic water being delivered to the faucets at a temperature equivalent to the boiler water All commercial installations requiring sustained water temperatures beyond 120 F must label all fixtures alerting water users of a potential scalding hazard Page 2 ...

Страница 3: ...allation 7 Method A Quick Residential 8 Method B Detailed Residential g Method C Commercial 13 IV Before Starting Installation 19 V Locating the Water heater 19 VI Piping 20 Zone Design Boiler Side Piping 21 Domestic Piping 29 VII Wiring 33 VIII Start up and Check out 40 Appendix A 40 Page 3 ...

Страница 4: ...ler water circulation This indirect water heater consists of a plain steel tank in which three smooth copper coils are located The tank surrounded by 2 of Poly urethane foam insulation which is surrounded by an enamel coated plain steel jacket The boiler water pumps through the tank and heats the domestic water in the coils Specifications Page 4 ...

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Страница 7: ...perly apply the water heater to a particular system the following 3 steps must be done 1 Determine the domestic hot water requirements 2 Select the correct water heater boiler combination 3 Select a pump zone piping size and control system to provide proper water flow from the boiler through the water heater tank This manual presents three methods of sizing this water heater Method A Quick Residen...

Страница 8: ...Water heater is to be used with a boiler having a gross output less than that shown in table 4 use Method B If a boiler is to be installed with a water heater first find a boiler which will handle the space heating load alone If this boiler has a DOE heating Capacity greater than that shown in column F of table 4 do not add anything to the boiler selected for the Artesian If the boiler required fo...

Страница 9: ...utput in Table 1 Record the required boiler output heating capacity for the selected water heater in your work sheet Determine the boiler required to satisfy the space heating requirement alone by multiplying the space heating load by 1 15 Record this as the boiler heating capacity required for space heating in your work sheet Select the boiler with the larger of the above two heating capacities b...

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Страница 11: ...eating capacity is only 94 000 BTU hr Need 110 000 Btu hr For this reason install a five section boiler that has a heating capacity of 125 000 BTU hr Solution The completed sizing sheet for this example is shown in figure 2 The adjusted peak hour demand is 145 gallons per hour From table 1 we see that a water heater 220 will fulfill this requirement with the appropriate boiler Refer to Table 1 for...

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Страница 13: ...actor The result is the probable maximum demand f If a commercial dishwasher or laundry is on the job determine the maximum amount of 140 F water which could be used in an hour This will depend upon the number of machines the amount of water used per machine and the way in which the equipment is to be used Consult the machine manufacturer and the building owner for this information Once the maximu...

Страница 14: ...h individual water heater must be totaled to provide the gross boiler output required for the system Use water heaters of equal size Do not mix tanks of different sizes on the same manifold See the Piping and Wiring sections of this manual for proper installation of a manifold system 4 Note Use of a storage tank can increase the system s performance by providing a buffer for periods of high demand...

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Страница 16: ... Laundry Line at the bottom of Worksheet 2 The demand factor of 0 25 for a hotel is from Table 6 The Probable Maximum Demand is 0 25 x 1978 494 5 GaVhr To this we add the 100 GaVhr laundry usage for an Adjusted Probable maximum Demand of 594 5 Gal hr From table 1 Select the most cost effective combination of equal size Artesians that will satisfy this requirement In this case 2 model 340 s with 30...

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Страница 19: ... this manual 4 When adding a water heater to an existing system the additional water content of the tank must be considered Verify that the expansion tank sizing is correct IV Locating The Artesian WARNING Failure to properly support a water heater tank installation could result in property damage or personal injury 1 Table 2 shows the weights of all water heaters filled with water The location ch...

Страница 20: ...nformation on these zone systems Boiler Side Piping Figures 4 9 show typical boiler side piping for several common situations Regardless of which system is used it is imperative that the minimum boiler water flow rates called for in Table 1 are developed through the tank This requires properly sized piping and a properly sized pump The systems shown in figures 4 9 are described below Standard Circ...

Страница 21: ...ature of the water going to the system The temperature of the water going through the water heater is thus limited only by the boiler high limit setting The high limit setting on the boiler aquastat should be set 15 20 F higher than the tank aquastat on the Artesian Figure 7 illustrates the use of a heat exchanger to control the temperature of the water going to the low temperature system This hea...

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Страница 28: ...t from the water heater upon the hot water supply pipe f The use of a flow restricter may be required to control flow rates when necessary Water heater Piping With A Temperature Limiting Valve At first draw the domestic water temperature will be equal to the control temperature setting on the tank The temperature of water going to the fixtures may be more carefully controlled with a thermostatic m...

Страница 29: ...anch just below the last fixture then back to the inlet of the water heater via the return pipe When a fixture is opened hot water is already out in the branch very close to the fixture and hot water immediately appears The check valve prevents cold water in the water heater s inlet pipe from passing around the tank and heading directly to the fixture Because hot water is always circulated in the ...

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Страница 33: ...the water heater zone This relay is equipped with its own 24 volt transformer and D P D T contacts The water heater control is connected to terminals R and G so that when the water heater control calls for heat the relay is energized One set of contacts on the R8285B is used to switch line voltage On this set of contacts the common is connected to an unswitched hot The normally closed contact is c...

Страница 34: ...types and brands of priority and non priority zone valve and zone pump controllers are available which may be used Follow control manufacturers instructions Zone Valves 2 Way Priority Figure 17 shows a connections diagram for a priority zone system using Honeywell V8043F motorized valves An R8285B relay is used which is equipped with its own transformer and a set of D P D T contacts The water heat...

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Страница 40: ...tions Commercial Whirlpool tubs present special sizing problems because of the large rate as much as 20 GPM at which they fill The following procedure is predicated upon a water heater supply temperature of 140 F Before using this procedure it is important to determine whether the tub in question is a Whirlpool tub or a hot tub A hot tub has its own water heating source and is not refilled each ti...

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