background image

 

P-K DURATION II 

™ Indirect Domestic Water Heating System 

 

2.5 

S

AFETY 

P

RECAUTIONS

 

Provide  a  suitable  location  for  the  P-K  Duration  II  system,  away  from  normal  personnel  traffic,  with  adequate 
working space, adequate clearances, proper ventilation and lighting, with a structure sufficiently strong and  rigid 
to support the weight of the P-K Duration II system, all piping, and accessories. 

2.5.1 

Electrical Hazards 

 

Shock hazard!  Properly lockout/tag out the electrical service and all 
other energy sources before working on or near the P-K Duration II.  

 

Shock hazard!  Do not spray water directly on this system or on any 
electrical components.   

 

Electrical hazard!  Do not alter wiring connections. 

2.5.2 

Burn, Fire, and Explosion Hazards 

 

Burn hazard!  Possible hot surfaces.  Pipes and internal components could be hot.  
Do not touch piping or internal components during operation or immediately after 
shutdown of the boiler.  

 

Burn hazard!  Hot fluids.  Use caution when servicing or draining the P-K Duration 
II system. 

     Isolation valves are provided on all inlets and outlets for your convenience.  Close 

the  applicable  isolation  valves  and  allow  the  P-K  Duration  II  to  cool  down  to 
ambient temperature before servicing. 

 

 

 The P-K Duration II is a dynamic system that is designed to heat domestic hot water to 

a wide range of temperatures.  The P-K Duration II system is capable of heating water to scalding temperatures.  
Refer to your local codes for guidelines on compliance for domestic hot water systems.  A thermostatic mixing 
valve or other device may be required to prevent scalding. 
 

2.5.3 

Crush Hazards 

 

 

Lifting hazards!  Use properly rated lifting equipment to lift and position the P-K 
Duration II system.  The load is unbalanced.  Test balance before lifting 3 ft. above 
the floor.  Do not allow personnel beneath the lifted load.  Refer to approximate 
weights in the table. 

 

 

 

 

 

 

Model 

Weight in Pounds 

D2DW-30S Simplex 

950 lbs. 

D2DW-30D Duplex 

1590 lbs. 

D2DW-80S Simplex 

1005 lbs. 

D2DW-80D Duplex 

1700 lbs. 

Hot Surface

General Warning

General Warning

Summary of Contents for P-K DURATION II D2DW-30(S/D)

Page 1: ...ANEOUS INDIRECT DOMESTIC HOT WATER SYSTEM Model _______ Serial ______________________ Start Up Date _______________________ Harsco Industrial Patterson Kelley 155 Burson Street East Stroudsburg PA 183...

Page 2: ...P K DURATION II Indirect Domestic Water Heating System 2...

Page 3: ...nd Storage 7 3 2 Compliance with Codes 8 3 3 Setup 8 3 4 Mechanical Connections 9 3 5 Electrical Connections 15 3 6 Pre Start Check List 16 3 7 Safety Checks 16 4 OPERATION 17 4 1 LOVE Controller 17 4...

Page 4: ...any system Harsco Industrial Patterson Kelley cannot be responsible for the design or operation of such systems and a qualified engineer or contractor must be consulted 2 SAFETY 2 1 GENERAL The P K Du...

Page 5: ...ntact Harsco Industrial Patterson Kelley Technical Service at 570 476 7261 or toll free at 877 728 5351 2 3 SAFETY FEATURES It is the responsibility of the customer to maintain the safety features suc...

Page 6: ...Burn hazard Hot fluids Use caution when servicing or draining the P K Duration II system Isolation valves are provided on all inlets and outlets for your convenience Close the applicable isolation val...

Page 7: ...d by a qualified installer service agency or gas supplier 3 1 RECEIVING AND STORAGE 3 1 1 Initial Inspection Upon receiving the P K Duration II system inspect it for signs of shipping damage Since som...

Page 8: ...piping is constructed and stamped in accordance with ASME Boiler and Pressure Vessel Code Section VIII with a standard 150 psig set pressure 3 3 SETUP 3 3 1 Foundation and Placement Provide a firm lev...

Page 9: ...omestic hot water capacity in a 32 wide x 64 long footprint and requires four 4 piping connections to operate as seen below A DHW Supply 2 Sweat Ball Valve B DHW Return 2 Sweat Ball Valve C Boiler Wat...

Page 10: ...th the curved red arrow middle 3 4 2 1 Boiler Piping Figure As the domestic hot water supply temperature drops below the desired setpoint the control valve actuates allowing the flow of hot boiler wat...

Page 11: ...mage which shows the manifold The Boiler water is piped to each heat exchanger from one connection point limiting the requirement for multiple connections provided the same boiler water is required to...

Page 12: ...ining flow across the temp gauges and RTD Minimizes heat exchanger scale formation by maintaining velocity across the plates Inhibits bacterial growth by preventing stagnant water conditions As domest...

Page 13: ...er heating system does not require a domestic water storage tank if hot water is constantly available for the 3 way valve If using in conjunction with a boiler the initial call for heat takes time unt...

Page 14: ...Domestic Water Flush the domestic water periodically by using the drain valve located on the DHW supply line Bottom At the same time the strainer should be checked and cleaned properly NOTICE Under no...

Page 15: ...rain valve on the boiler water strainer once a steady flow of water occurs STEP 5 Open the manual isolation valves on the inlet of the boiler piping STEP 6 Check for any leaks in all piping connection...

Page 16: ...mpt to operate a P K Duration II system that has failed to pass all the safety checks described below After checking controls by manual adjustment make sure they are always reset to their proper setti...

Page 17: ...is changed The up and down buttons are used to change the values of the parameters 4 1 1 Controller Operation To change the setpoint press the up or down buttons to change SV to the desired value Once...

Page 18: ...llustrate the correct positioning for the various valve actuators NOTICE For water to water applications or when valve is oversized equal percentage valves are the preferred type 4 2 1 Siemens Valve A...

Page 19: ...g information 5 1 2 Weekly Check for leaks in the boiler piping and the domestic piping Correct immediately if discovered 5 1 3 Monthly Check all relief valves by slightly opening the stem Once you se...

Page 20: ...circulator pump Be sure water is flowing through the recirculation pipe Check valves in pipe line must be operational Check for proper boiler water flow 5 2 5 Domestic water temperature is too high or...

Page 21: ...DED SPARE PARTS Circulator Pump bearing and seal assembly Dial Thermometers Temperature sensor RTD Temperature Controller Relief Valve Thermostat for over temperature control Use of Non Factory Author...

Page 22: ...P K DURATION II Indirect Domestic Water Heating System 22 6 2 WIRING DIAGRAM...

Page 23: ...TION II Indirect Domestic Water Heating System 23 6 3 MODELS 6 3 1 Boiler Piping CALLOUT TAG PART DESCRIPTION 1 3 WAY ELECTRONIC CONTROL VALVE 2 2 BALL VALVE 3 WYE STRAINER 4 STRAINER BLOW DOWN VALVE...

Page 24: ...ye Strainer 2 2 Pressure Gauge XX XX PSI 3 Temperature Gauge XXF XXF 4 Automatic Air Vent 5 Section VIII Pressure Only Relief Valve 6 2 Ball Valves 7 Wye Strainer Blow Down Valve 8 Recirculation Pump...

Page 25: ...rect Domestic Water Heating System 25 6 3 3 Control Panel and Heat Exchanger TAG NUMBER PART DESCRIPTION 1 POWER LIGHT 2 HIGH LIMIT LIGHT 3 DISCONNECT SWITCH 4 TEMPERATURE CONTROLLER 5 FUSES 6 HEAT EX...

Page 26: ...ovided by Seller the defective item will become the property of Seller Transportation to Seller s facility or other designated facility for repairs of any products or party alleged defective shall in...

Page 27: ...val installation or reinstallation charges any material and or permits required for installation reinstallation or repair charges to return the boiler and or components L INCIDENTAL SPECIAL OR CONSEQU...

Page 28: ...P K DURATION II Indirect Domestic Water Heating System 28...

Reviews: