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GT INSTALLATION AND OPERATION INSTRUCTIONS

Page 15

Figure 25 - Secondary Loop For Multiple Zones Using Pumps

Figure 26 - Secondary Loop For Multiple Zones Using A Bypass Valve

Note: Velocity noise may be a problem
when the entire output of the system
pump is fl owing through the zone with
the highest pressure drop. Adjust the
differential bypass valve to eliminate
noise.

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Содержание GT-150

Страница 1: ...NING If the information in this manual is not followed exactly a fire or explosion may result causing property damage personal injury or loss of life INSTALLER THESE INSTRUCTIONS MUST BE AFFIXED ADJAC...

Страница 2: ...d long life for which this boiler was designed these instructions must be read understood and followed Direct all questions to your Smith distributor or to the Customer Service Department 260 North El...

Страница 3: ...however 24 in 610 mm is recommended 2 An optimum site will be level central to the hot water piping system and close to an outside wall NOTE This boiler is designed for direct placement on a combustib...

Страница 4: ...let System Attachment One of the following materials is to be used for the air intake pipe 3 in 76 mm ABS 3 in 76 mm PVC Sch 40 pipe 3 in 76 mm Galvanized Steel pipe See Table 2 for the maximum equiva...

Страница 5: ...mm vent collar to 3 in 76 mm at the boiler Figure 3 Figure 3 Vent Pipe To Boiler Attachment The maximum combined equivalent vent and intake pipe lengths are listed in Table 2 The length specified is t...

Страница 6: ...liance will produce a plume of water vapor and should be taken into consideration when selecting an adequate vent terminal location A 3 ft 0 9 m diameter stainless plastic or vinyl shield can be used...

Страница 7: ...lations that have to exit the foundation below grade excavate the site as shown in Figure 8 to a point below where the pipes exit the building Maintain the proper vent clearances as outlined above Att...

Страница 8: ...ditions must apply 1 If limited to two terminals the horizontal centerline distance must be 4 in 102 mm or greater than 24 in 610 mm to prevent flue gas recirculation For more than two terminals locat...

Страница 9: ...terminal must always be a minimum of 12 in 305 mm plus the snow allowance above any surface that will support snow however a snow allowance of 24 in 610 mm is highly recommended Figures 15 16 Consult...

Страница 10: ...nsure that the air inlet and vent system lengths are within the maximums specified in Table 2 The debris screens provided with the boiler must be installed in both the air intake and vent terminals In...

Страница 11: ...e products such as Fernox Superfloc for new installations and CHR Central Heating Restorer for retrofits Also add an inhibitor to the system water to prevent limestone and magnetite deposits from form...

Страница 12: ...diagram to be used as a vacuum breaker and to eliminate air upon filling Figure 21 LWCO Air Vent Piping PRIMARY LOOP PLUMBING This low mass boiler requires a continuous minimum water flow for proper...

Страница 13: ...terminals C1 L2 5 See Table 3 for Indirect Water Heater pump flow requirements This pump is wired to terminals AP L2 6 Set pressure reducing valve to 12 psi 83 kPa 7 Use 30 psi 207 kPa relief valve ma...

Страница 14: ...nals C1 L2 5 See Table 3 for Indirect Water Heater pump flow requirements This pump is wired to terminals AP L2 6 Set pressure reducing valve to 12 psi 83 kPa 7 Use 30 psi 207 kPa relief valve max Loc...

Страница 15: ...tiple Zones Using Pumps Figure 26 Secondary Loop For Multiple Zones Using A Bypass Valve Note Velocity noise may be a problem when the entire output of the system pump is flowing through the zone with...

Страница 16: ...he gas valve which can cause a fire or explosion GAS SUPPLY PIPING The GX hot water boiler comes from the factory ready to be piped to the gas supply The National Fuel Gas Code ANSI Z223 1 NFPA 54 and...

Страница 17: ...ps with a maximum inrush of 6 amps If the amp draw of the pumps exceeds these maximums a pump controller or isolation relay must be used to prevent damage to the boiler Damage caused by improper wirin...

Страница 18: ...uit between terminals T and C shutting down the pumps and the burner Multiple Zones w Taco Valve Controller Models ZVC403 to ZVC 406 Figure 31 shows the basic multiple zoned system using normally clos...

Страница 19: ...GT INSTALLATION AND OPERATION INSTRUCTIONS Page 19 Figure 30 Multiple 4 Wire Zone Valves...

Страница 20: ...GT INSTALLATION AND OPERATION INSTRUCTIONS Page 20 Figure 31 Multiple Zones w Taco Valve Controller Models ZVC403 to ZVC 406...

Страница 21: ...on the pump controller The controller energizes the appropriate circulating pump and closes the circuit between terminals T and C on the Sentry 2100 control The Sentry 2100 provides power to the prima...

Страница 22: ...GT INSTALLATION AND OPERATION INSTRUCTIONS Page 22 Figure 33 Boiler Ladder Diagram...

Страница 23: ...GT INSTALLATION AND OPERATION INSTRUCTIONS Page 23 Figure 34 Boiler Connection Diagram...

Страница 24: ...GT will maintain by increasing or decreasing the input Indirect Water Heaters The Sentry 2100 comes with an input and output for a 120 volt indirect pump When the A and C terminals are closed dry cont...

Страница 25: ...ter Error Code On Off NOTE LFS must not be set below 48 on the GT150 model To start the control operation return to RUN on the menu and press Function Normal operation will begin Recommended Settings...

Страница 26: ...C 70 F 21 C 1 85 RESET TEMPERATURE HICalc RES Outdoor Air x Reset Ratio RES 70 F 21 C 32 F 0 C x 1 85 70 F 21 C 70 6 F 21 C 70 F 21 C 140 6 F 42 C NOTE The design temperature is 0 F 18 C outside air...

Страница 27: ...mmediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control that has been under water NOTE The GT was tested with Natural...

Страница 28: ...ystem by turning the thermostat to it s lowest setting and then back to where it was or by momentarily interrupting the electrical power to the boiler D With the burner in operation close the manual s...

Страница 29: ...r Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control that has been under water 1 STOP Read the safety informatio...

Страница 30: ...s up to 2000 ft 610 m At elevations above 2000 ft 610 m input ratings should be reduced by 4 for each 1000 ft 305 m above sea level Check the input rate as follows NATURAL GAS 1 Turn off all other gas...

Страница 31: ...ing at the valve Figure 2 6 Remove the nuts used to attach the burner to the heat exchanger 7 Carefully slide the burner out of the unit 8 Inspect the burner for damage or signs of deterioration Use a...

Страница 32: ...bolts 7 Once the unit is level install the bottom two 14 3 lag bolts 8 Remove the Air Inlet Pipe assembly and Metering elbow from the gas valve venturi assembly Figure 44 Figure 44 Air Inlet Pipe Remo...

Страница 33: ...calculated using formula in Section 8 1 If the thermostat demand light is turning off the thermostat has satisfied 2 If DHW temp light is turning off the aquastat or call for domestic has been satisfi...

Страница 34: ...fan is running air switch may be faulty 4 If fan is not running check 120V wiring to blower if ok remove low voltage harness from blower if blower fails to start replace blower if blower does start p...

Страница 35: ...gas valve when it opens If boiler lights check for flame signal between FC1 And FC2 on Fenwal control If lower then 1 2 micro amps see Boiler will not stay lit below Check combustion properties If the...

Страница 36: ...vent from the boiler during ignition if unit lights smoothly with intake vent disconnected reconnect and check for proper combustion if unit maintains smooth operation after ignition Calibrate for pr...

Страница 37: ...ure the resistance of the thermister when disconnected 2 Using the appropriate chart find the resistance and move vertically for the water probe or horizontally for the air probe until the line is int...

Страница 38: ...GT INSTALLATION AND OPERATION INSTRUCTIONS Page 38 Figure 48 Replacement Parts Exploded View SIOM 36...

Страница 39: ...8 1 1 24 2 Clamp GT 82100 1 1 25 Sentry 2100 Control GT 82013 1 1 26 Complete Control Panel Assy GT 82754 1 1 27 PCB Optocoupler GT 82754 1 1 1 28 Outdoor Air Sensor 10K GT 81027 1 1 1 29 Transformer...

Страница 40: ...WESTCAST INC 260 NORTH ELM STREET WESTFIELD MA 01085 TEL 413 562 9631 FAX 413 562 3799...

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