Caleffi solar NAS20053 Скачать руководство пользователя страница 13 | Manualshive

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Page 13

Figure 5 shows an example of a domestic solar heating system based on an indirect water
heater with two coils. The domestic water can be heated by the solar system as well as the
boiler.

Figure 5:

Single tank system with boiler backup

SECTION IV: INSTALLATION (cont.)

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Содержание NAS20053

Страница 1: ...ctrical heating element for backup heat or boiler backup top coil Solar heat output from the internal coil will vary depending on outside conditions and the temperature of the stored water Models NAS2...

Страница 2: ...ons thoroughly before installing or placing the heater into service This unit must be installed by licensed or authorized installers or technical personnel that service water heating equipment The hea...

Страница 3: ...nstructions 4 Use this water heater only for its intended use as described in this manual 5 Do not use an extension cord set with this water heater If no receptacle is available adjacent to the water...

Страница 4: ...Table of Contents 1 Specifications 5 2 General Information 6 3 Pre Installation 9 4 Installation 10 5 Operation 16 6 Maintenance 17 7 Troubleshooting 18 8 Parts List 19 Page 4...

Страница 5: ...tection valve be installed and used according to the manufacturer s directions to prevent scalding Model A B C D E F G H I J K NAS20053 22 48 1 4 39 3 4 39 3 4 31 1 2 16 3 4 6 1 2 n a n a n a n a NAS2...

Страница 6: ...58 0 8 NAS20122 108 2 76 1 84 14 14 9 42 0 60 0 40 258 158 1 2 NOTES Based on 5 GPM flow rate Based on solar input of 140 F 2 GPM Depending on model backup heat recovery is calculated with either a 45...

Страница 7: ...heater and cannot be adjusted The thermostat is factory set at 120 F See Table 6 for thermostat letter and temperature relationships If hotter water is required a thermostatic mixing device or scald...

Страница 8: ...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 Autom...

Страница 9: ...witch do not use any telephone in your building Immediately call your gas supplier from a telephone in another building Follow your gas supplier s instructions If you cannot reach your gas supplier ca...

Страница 10: ...ion and shut off valve at both potable water connections All piping should be diameter new copper or larger A thermostatic mixing valve or scald protection valve should be installed at the potable wat...

Страница 11: ...ATION cont A piping diagram for a typical solar domestic water heating system based on an indirect water heater with electric heating backup is shown in Figure 3 Figure 3 Single tank system with elect...

Страница 12: ...gure 4 Two tank system with existing heater A typical two tank system is shown in Figure 4 The two tank system is mainly used where a conventional water heater is already installed SECTION IV INSTALLA...

Страница 13: ...of a domestic solar heating system based on an indirect water heater with two coils The domestic water can be heated by the solar system as well as the boiler Figure 5 Single tank system with boiler b...

Страница 14: ...oiler fired water heater SECTION IV INSTALLATION cont Figure 6 shows a two tank system based on an indirect water heater and a solar water heater with electric back up The stored water in the indirect...

Страница 15: ...with copper conductors over current protection and means for disconnection must be provided by qualified service personnel The total wattage load and voltage requirements for the water heater are spe...

Страница 16: ...led VERY HOT See Table 6 for a listing of indicator setting and temperature relationships CAUTION Hot water in excess of 120 F can cause scalding The temperature at which injury occurs varies with the...

Страница 17: ...and at least yearly once a time interval for inspection has been developed It is recommended to check the rod s six months after the heater is installed If the anode rod had reduced in size by two th...

Страница 18: ...ection VI for tank flushing procedure Circulator does not operate Check solar controller Replace as necessary Faulty tank thermostat Replace thermostat Insufficient hot water Rust staining bad taste a...

Страница 19: ...Bracket 9 Cold Inlet with Diptube 19 Thermostat 10 Anode Rod 20 Heating Element Gasket Table 8 NAS20083 NAS20123 Parts 1 Immersion Well 10 T P Relief Valve 2 Leak Detector 11 Drain Valve 3 J Box Cover...

Страница 20: ...Heating Element Gasket Table 8 NAS20083 NAS20123 Parts 1 Immersion Well 10 T P Relief Valve 2 Leak Detector 11 Drain Valve 3 J Box Cover 12 Access Cover 4 J Box Cover w conduit hole 13 Foam Dam Cover...

Страница 21: ...e 8 NAS20083 NAS20123 Parts 1 Immersion Well 10 T P Relief Valve 2 Leak Detector 11 Drain Valve 3 J Box Cover 12 Access Cover 4 J Box Cover w conduit hole 13 Foam Dam Cover 5 Anode Rod 14 Thermostat C...

Страница 22: ...NOTES Page 22...

Страница 23: ...Page 23 NOTES...

Страница 24: ...Caleffi North America Inc 3883 W Milwaukee Rd Milwaukee WI 53208 Copyright 201 Tel 414 238 2360 Tel 414 238 2366 Printed in the USA 8...

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