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© 2013 Pentair Equipment Protection

89087984

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SAFETY STANDARDS TO COMPLY WITH WHEN THE EQUIPMENT IS TURNED OFF

Before servicing the equipment, disconnect all circuits.
Make sure that no voltage whatsoever is present in the circuit.
Clean and dry the whole area.
Remove pins, rings, brackets or any accessories which may hinder operations or turn into a potential 

electrical conductor.
Ground discharge to earth or short circuit the capacitor terminals connected with the deactivated circuit.
Remove the fuses only after the circuit has been deactivated.

SAFETY STANDARDS TO COMPLY WITH WHEN SERVICING LIVE EQUIPMENT

Add the following provisions to those under items 2, 3 and 4 above:

•  Personnel must never operate alone

•  If possible, use only one hand to perform work required

•  Check wires and instruments regularly

•  Use only approved procedures to bypass the interlocks

•  Ensure that operators are familiar with equipment parts and maintenance procedures, before servicing the unit

•  Use a pair of safety gloves

•  Open all contacts which feed power to the equipment before measuring resistance levels; verify there is no high 

voltage in the low voltage circuits

•  Do not use magnetic tools RDXC in the proximity of strong magnetic fields

SAFETY STANDARDS TO COMPLY WITH WHEN SERVICING THE UNIT

If continuous duty is not required, the system must be turned off. Before commencing work, the following 

is required:

•  Check that the maintenance technician is not carrying any objects which may act as conductors

•  Inspect the work area to make sure the floor is clean and dry

•  Check work tools. They must be suitable for their designated task and in good working order to ensure safe 

maintenance operations

•  Check that all gauges are regularly calibrated

•  Check servicing procedures before commencing work by inspecting the wiring diagram and visualizing the system 

structure

When carrying out electrical maintenance operations, the following is required:

•  The maintenance technician must be familiar with high voltage circuits

•  No resistance measurements are to be carried out on live circuits

•  Use only one hand to take measurements on live circuits

•  Earth all instrument terminals before taking measurements on live circuits

•  The above recommendations must be strictly adhered to

Maintenance operations shall be deemed to have been completed only when all parts have been re-

installed and the product has regained its original appearance

FIRE HAZARDS

No direct danger

TOXIC SUBSTANCES

None

DANGERS ARISING FROM FLUIDS

Danger only arises if the fluid is dispersed in the installation site. This creates danger for passage by 

persons.
The same danger exists if condensate, generated by the unit, is not collected and discharged to a suitable 

drain.

Summary of Contents for WCHE Series

Page 1: ...2013 Pentair Equipment Protection 89087984 Rev G P N 89087983 Air To Water Heat Exchangers WCHE Models INSTRUCTION MANUAL...

Page 2: ...8 HEAT EXCHANGE BANK 18 CONDENSATE COLLECTION BASIN 18 FLOW CONTROL SOLENOID VALVE 18 MOTORS 19 FANS 19 CONTROL MONITORING AND SAFETY COMPONENTS 19 REGULATING THERMOSTAT FOR SOLENOID VALVE 19 Adjustme...

Page 3: ...event of the manual being misplaced or damaged the customer may require for a fee a new manual by quoting the model and serial number shown on the technical name plate by contacting Pentair Equipment...

Page 4: ...er is responsible for any damage caused during shipment Pentair Equipment Protection is not responsible for damage caused to the merchandise by the shipper but will do all in its power to assist custo...

Page 5: ...omponents next to water Only skilled personnel may repair inspect or maintain the heat exchangers Before servicing this unit refer to the instructions contained in this manual check the data on the na...

Page 6: ...cabinet temperature for the air to water heat exchanger to work properly CAUTION Cooling water a constant flow of which must be furnished by the user at a temperature that is lower than the temperatur...

Page 7: ...CE DATA WCHE019 SERIES Parameter Units WCHE01916002 WCHE01926002 Voltage Phase Frequency V ph Hz 115 1 50 60 230 1 50 60 Cooling capacity L35W10 25 C dT W 870 Power absorbed W 28 Current absorbed A 0...

Page 8: ...13 Pentair Equipment Protection 89087984 8 DESIGN DATA WCHE019 SERIES 7 5 1 7 5 287 21 16 7 5 1 78 1 2685 5 1 1 2685 5 287 5217 7 0 5 32 5 25 7 3 8 0 02817 1 2 6 336 0 7 5 211 7 21 5 5 5 5 87287 89090...

Page 9: ...xchanger CFM m3 h 247 420 Recommended water flow gpm l h 0 66 150 Pressure drop at recommended water flow psi kPa 4 4 30 Max water pressure psi kPa 145 1000 Water connections using valves NPT 1 2 inch...

Page 10: ...Pentair Equipment Protection 89087984 10 DESIGN DATA WCHE049 SERIES 7 5 1 7 5 287 21 16 7 5 1 78 1 2685 5 1 1 2685 5 287 5217 7 0 5 32 5 25 7 3 8 0 02817 1 2 6 336 0 7 5 211 7 21 5 5 5 5 5 87287 8909...

Page 11: ...xchanger CFM m3 h 265 450 Recommended water flow gpm l h 2 2 500 Pressure drop at recommended water flow psi kPa 9 1 63 Max water pressure psi kPa 145 1000 Water connections using valves NPT 1 2 inch...

Page 12: ...Pentair Equipment Protection 89087984 12 DESIGN DATA WCHE069 SERIES 7 5 1 7 5 287 21 16 7 5 1 78 1 2685 5 1 1 2685 5 287 5217 7 0 5 32 5 25 7 3 8 0 02817 1 2 6 336 0 7 5 211 7 21 5 5 5 5 5 87287 8909...

Page 13: ...at exchanger CFM m3 h 500 850 Recommended water flow gpm l h 3 8 860 Pressure drop at recommended water flow psi kPa 5 8 40 Max water pressure psi kPa 145 1000 Water connections using valves NPT 1 2 i...

Page 14: ...Pentair Equipment Protection 89087984 14 DESIGN DATA WCHE149 SERIES 21 16 7 5 1 78 7 5 1 7 5 287 1 2685 5 1 1 2685 5 287 5217 7 0 5 32 5 25 7 3 8 0 02817 1 2 6 336 0 7 5 211 7 21 5 5 5 5 5 5 87287 890...

Page 15: ...pening clearance provide a door stop for it Cabinet panel must be flat and rigid to form a tight seal with the mounting gasket INSTALLATION NOTE Prior to drilling holes or making cuts on the cabinet m...

Page 16: ...circuit making sure there are no leaks from pipelines 4 Install an inlet and an outlet pressure gauge on the plumbing circuit plus a gate valve 5 This will permit you to control the speed of the wate...

Page 17: ...ions SO4 2 30 mg l ppm Nitrates and nitrites NO3 30 mg l ppm Iron 0 5 mg l ppm Cooper 0 5 mg l ppm Resistivity 2000 R 5000 Ohm cm pH value 6 9 pH 8 Alkalinity HCO 300 mg l ppm Ca2 Mg2 HCO3 0 5 Oxygen...

Page 18: ...BANK This is where heat exchange takes place between cabinet air and cooling water It is composed of copper pipes with aluminum fins CONDENSATE COLLECTION BASIN This is built into the unit s frame an...

Page 19: ...ed mechanical thermostat It measures the air temperature entering the heat exchanger and upon reaching the setpoint activates the solenoid valve to open the flow of cooling water In some models the me...

Page 20: ...plate WARNING Connect the power cord to a properly grounded power source Use of an extension cord is not recommended Electrical connections must be made according to local applicable codes and standar...

Page 21: ...ture is lower than the air temperature in the cabinet The bigger the temperature difference the higher the cooling performance of the system PRELIMINARY CHECKS AFTER STARTING THE UNIT Check that the a...

Page 22: ...he pipelines is not clogged by dirt REPLACEMENT OF COMPONENTS We recommend replacing fans every 40 000 operating hours with mean temperature of 40 C 104 F HOW TO CLEAN THE UNIT Open the unit by removi...

Page 23: ...e department HAZARDS ARISING FROM THE PRODUCT COMING INTO CONTACT WITH THINGS OR PERSONS Danger point 1a is fan movement The fan s protective grille prevents passage of bodies with dimensions greater...

Page 24: ...N SERVICING THE UNIT If continuous duty is not required the system must be turned off Before commencing work the following is required Check that the maintenance technician is not carrying any objects...

Page 25: ...UNIT Dismantling of this unit must always be done by expert personnel Make sure the electrical supply to the unit is interrupted before starting to dismantle it WARNING Note The heat exchanger will h...

Page 26: ...freely Fan faulty Change the fan Fan capacitor if any faulty Change the capacitor The fans are working but no heat exchange takes place Thermostat is set too high Adjust thermostat to a lower temperat...

Page 27: ...4 Solenoid Valve 26046 26042 Capacitor 26047 26043 1 2 inch G NPT Adapter Valve 26044 26044 Gasket 2 required 26036 26036 WCHE069 Item 115 V Part Numbers 230 V Part Numbers Air Mover 26051 26048 Therm...

Page 28: ...2013 Pentair Equipment Protection 89087984 28 NOTES...

Page 29: ...2013 Pentair Equipment Protection 89087984 29 NOTES...

Page 30: ...than fourteen 14 days from the date when Buyer has become aware of such occurrence or where the defect is such that it may cause damage immediately such notice containing a description of how the defe...

Page 31: ...t Failure Analysis can be provided by Pentair Equipment Protection for warrantable goods at no charge Failure analysis for non warranty repairs are subject to a 100 per hour Engineering charge plus an...

Page 32: ...2013 Pentair Equipment Protection 89087984 Rev G P N 89087983 Pentair Equipment Protection 2100 Hoffman Way Minneapolis MN 55303 USA 1 763 422 2211 1 763 576 3200 PentairEquipmentProtection com...

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