Walchem EZ Series, Instruction Manual

Page 1: ...ectronic Metering Pump Instruction Manual Five Boynton Road Hopping Brook Park Holliston MA 01746 USA TEL 508 429 1110 FAX 508 429 7433 WEB www walchem com W A L C H E M IWAKI America Inc EZ Series Me...

Page 2: ...fication to be free from defects in workmanship and material for a period of two years from date of delivery from the factory or authorized distributor under normal use and service and otherwise when...

Page 3: ...odel Code 2 1 4 Specifications 3 1 5 Dimensions 4 2 0 INSTALLATION 5 2 1 Unpacking 5 2 2 Location 5 2 3 Supply Tubing 6 2 4 Discharge Tubing 7 2 5 Installing Injection BackPressure Valve 7 2 6 Interlo...

Page 4: ...not constitute a cross connection Walchem is not responsible for improper installations Prior to performing any maintenance on a pump depressurize the discharge tubing In flooded suction pumping downh...

Page 5: ...weekly or 2 week operation with digitally adjustable speed and external stop control Available on 115V EZB models 4 Voltage 1 115 VAC 50 60 Hz 2 230 VAC 50 60 Hz 5 Liquid End See Section 1 4 for detai...

Page 6: ...0 26 60 0 4 3 8 B31 3 2 200 0 56 30 0 2 1 2 C16 1 3 80 0 22 150 1 0 3 8 C21 2 0 130 0 36 105 0 7 3 8 C31 4 3 270 0 75 50 0 35 1 2 C36 6 3 400 1 17 30 0 2 1 2 1 Auto Air vent valve reduces maximum pres...

Page 7: ...4 FC 3 21 1 02 0 08 3 54 0 63 0 20 6 85 6 85 0 24 6 77 1 2 O D 3 94 EZC 16 21 D1 D2 VC PC TC VE PE VF 4 13 0 94 3 94 1 46 3 03 1 1 83 2 0 31 6 30 6 50 2 7 64 8 79 2 1 42 8 15 10 24 1 8 52 2 3 8 O D 4...

Page 8: ...ls below 32 F 0 C Pumps should always be shielded from direct exposure to the elements Black UV resistant tubing should be used if the tubing is exposed to strong UV radiation sunlight lamps This pump...

Page 9: ...ay to the valve housing shoulder Tip if the tubing is stiff from cold dip the tubing end in hot tap water for a few minutes so it will slide on and flare out more easily Push the coupling nut onto the...

Page 10: ...e vertical UP connection and the air vent connection is on the side of the valve Figure 6 Air Vent Valve Tubing 2 5 Installing Injection BackPressure Valve A fitting or tee with 1 2 NPTF threads and w...

Page 11: ...well pump main line or recirculation pump is off and for pools spas in times of backwash that the metering pump is not allowed to operate If using a controller pH ORP pool for automated control and fl...

Page 12: ...ump Then reconnect the discharge tubing to the injection valve If the pump does not self prime remove the check valve housing on discharge suction sides to make sure valve cartridges and gaskets are i...

Page 13: ...rogrammed number day NUM indicator Becomes backlit when the pump is in DAILY mode to indicate the timer program number SET indicator Becomes backlit when pump is being programmed 2nd indicator Becomes...

Page 14: ...OUR SEL Sets the Minutes incrementing only Selects the Day of the week MODE MODE Move to TIMER RUN mode shows TIME Exits back to WAIT menu Move to WAIT menu MODE TIMER RUN MENU Scrolls between DAILY W...

Page 15: ...t both start time and run time DAILY MODE Initially the 1 SUN and NUM will both be backlit NUM is backlit to signal that the number backlit is used i e program 1 in this case Using the HOUR and MIN ke...

Page 16: ...dditionally EZ pumps with a Timer Module can be controlled in start stop mode In this mode AC power is applied continuously and pump operation is stopped by completing the circuit between the positive...

Page 17: ...ck to the source tank During priming the access knob does not have to be loosened as with a manual air vent valve as pressure is relieved through the vent The Top Valve Guide assembly uses a bottom se...

Page 18: ...case turn the knob clockwise until it clicks down approximately turn 3 The diaphragm prevents siphoning of chemical through the pump Pressure Release 1 Stop the pump operation 2 Turn the pressure rele...

Page 19: ...sket s and valve cartridges Be sure both valve seats are in the same orientation Refer to Figure below Tighten the suction fitting Similarly remove and replace the discharge valve cartridges o ring an...

Page 20: ...rtridge E Air Vent Valve Part numbers for these assemblies are on Page 26 Manual Air Vent Valve Standard Auto Air Vent Valve Optional Item 1 EZ Heads Qty 1 Part No Description Size Liquid End Mat l EH...

Page 21: ...PDM 4 16 21 VE PE VF 13 EH0025 Ball Valve 188 CE 4 5 11 VC VE PC PE VCA EH0084 Ball Valve 250 CE 4 16 21 VC VE PC PE VCA E00063 Ball Valve 0 188 PTFE 4 11 VF E00064 Ball Valve 0 250 PTFE 4 16 21 VF 14...

Page 22: ...2 For EZ pump model sizes 31 and 36 C Entire Head Assembly D Valve Cartridge E Air Vent Valve Part numbers for these assemblies are on Page 26 14 11 13 12 11 13 12 17 19 1 17 14 11 13 12 11 13 12 3 4...

Page 23: ...nt GFRPP 1 31 36 PC PE 11 EH0118 Guide Valve 0 375 PVC 4 31 36 VC VE VF EH0332 Guide Valve 0 375 GFRPP 4 31 36 PC PE 12 EH0119 Seat Valve 0 375 FKM 4 31 36 VC PC EH0125 Seat Valve 0 375 EPDM 4 31 36 V...

Page 24: ...D Valve Cartridge E Air Vent Valve Part numbers for these assemblies are on Page 26 TC Only 31 and 36 TC Only 11 16 and 21 FC Only All sizes 14 11 13 12 11 13 12 17 19 1 17 14 11 13 12 11 14 FC only 1...

Page 25: ...50 PVDF 4 16 21 FC EH0612 Guide Valve 375 PVDF 4 31 36 FC EH0352 Guide Valve 375 PVDF 4 31 36 FC TC EH1046 Guide Valve 188 PVDF 4 11 TC EH1050 Guide Valve 250 PVDF 4 16 21 TC 12 EH0590 Seat Valve 188...

Page 26: ...8 11 16 21 VE E90036 Valve Foot 1 2 31 36 PE E90037 Valve Foot 1 2 31 36 VE E90193 Valve Foot 1 2 31 36 VF E90234 Valve Foot 3 8 11 16 21 VF E90239 Valve Foot 1 2 31 36 TC E90240 Valve Foot 3 8 11 16...

Page 27: ...T 53 1110027300 Base EZ C Blue EZC 1120357900 Base EZ B Blue EZB 55 EH0289 Plug Control Module EZ D EZ T 56 EH0241 Screw M3 x 35 SS PH EZ D EZ T 57 EH0549 Plug Bolt EZ D EZ T 58 EH1438 Screw Self Tap...

Page 28: ...Vent Valve Assembly Valve Cartridge not shown in this view Head Assembly Control Module Drive Unit EZB EZC Key letters A Drive Unit B Control Module D Valve Cartridge C Head Assembly E Air Vent Valve...

Page 29: ...EZC21D2 ZC21 D2 EZCD2 EZC31D1 ZC31 D1 EZCD1 X31PC X31PC PK X31PE X31PE PK X31VC X31VC PK X31VE X31VE PK X31VF X31VF PK ZC31TC Z31TC PK ZC31FC Z31FC PK EZC31D2 ZC31 D2 EZCD2 EZC36D1 ZC36 D1 EZCD1 X36P...

Page 30: ...Output fluctuates Suction or discharge valve is clogged with foreign matter Disassemble inspect clean Air is trapped in pump Open air vent valve Overfeeding Install injection valve or back pressure va...

Page 31: ...Five Boynton Road Hopping Brook Park Holliston MA 01746 USA TEL 508 429 1110 FAX 508 429 7433 WEBSITE www walchem com...