DEMAMasterTM DM-812 Series Installation Manual
Contents
1. 1 808 Rev C 29421 DEMA Master DM 812 Series Installation Manual DEMA RINSE PRIME DETERGENT PRIME RINSE FEED RINSE POWER DET FEED POWER DET E A MADE IN USA MODEL DM 812 Pg 1 of 8 DEMA Master DM 812 Series Installation Manual System Overview The DEMAMaster series is designed for long reliable use with simplicity in mind for both the installer and user The DEMAMaster dispenses using the reliable DEMA peristaltic pump or DEMA solenoid valve for dry detergent applications The electical controls are installed in a heavy plastic housing with a sealed cover that uses a Lexan label with visible function indicators Pumps are available with three different motor gear box speeds 15 60 and 105 RPM There are micro controllers housed in the unit that control the operation of the pump or valve By use of the various DEMA control baords chemical products can be dispensed in a manner that will allow proper usage of the chemical product Please read all instructions before proceeding with the DEMAMaster installation Preperation for Installation First step in the installation is to know what type of DEMAMaster is to be installed The following table will help identify the unit to be installed This instruction sheet is only for those model numbers listed Table 1 DEMA Master General Specifications Transfo2. 4VAC terminals LINE 120VAC RETURN scare 208VAC RETURN TO CONTROL BOARD 240VAC RETURN TERMINAL BLOCK TRANSFORMER Figure 1 TERMINAL BLOCK TRANSFORMER LINE 120VAC RETURN 208VAC RETURN 240VAC RETURN 24VAC TO CONTROLBOARD PRESSURE SW TCH 4 TO RINSE BOARD 24VAC IN TO DETERGENT BOARD 24VAC OUT Figure 2 Pg 3 of 8 DEMA Master DM 812 Series Installation Manual Tubing Connections Included in the installation kit is low density polyethylene LDPE tubing The tubing can be used to connect from the chemical container to the pump and from the pump to the injection fittings on the machine Peristaltic Pump Applications Chemical Pickup Measure the length of the tubing needed on the suction side from the chemical container to the pump and cut the tubing to proper length Install the tubing into the pickup tubes Grey PVC through the compression nut and tighten the nut Route the tubing to the suction side of the pump An arrow on the faceplate indicates the flow direction Push the tubing into the pump squeeze tube approximately 1 2 3 4 15 20mm Secure the tubing with a tie wrap around the squeeze tube Use the same procedure on the outlet of the squeeze tubing and route the LDPE tubing to the injection point of the machine Cut off all excess tubing and keep tubing away from hot surfaces and sharp edges to prevent damage or leakage See Detergent and Rinse Tubing Connections below for specific information c
3. and see which pump runs and press the sanitizer prime button and see which pump runs 1 Install 14 compression by 1 8 NPT rinse injection check valve included in installation kit into the rinse manifold on the dish or cleaning machine between the vacuum breaker and the final rinse arm Drill an 11 32 hole and tap to 1 8 NPT When installing to copper pipe or tubing use saddle clamps e Note Each application may require specific hardware that is not included in the installation kit 2 Connect the 14 OD EPDM tubing between the 4 rinse check valve and the discharge side of the peristaltic rinse squeeze tubing Use a plastic tie to hold the 4 polypropylene tubing into the peristaltic squeeze tube 1 808 Pg 4 of 8 Rev C 29421 DEMA Master DM 812 Series Installation Manual DEMAMaster ASSEMBLY E Bu A O 2 Sn E amp a ke E m z w p 5 E m E Poa z wee 990 e r1 NX d e Pg 5 of 8 Rev C 29421 I 808 DEMA Master DM 812 Series Installation Manual Table 2 Replacement Parts A S Os Qty Required Description 1 81 2 1 DEMA Master Double Contro
4. g 23 81 942 1 1 transformer units 18 AWG Orange Wire 10 long 24 81 202 2 Captive Screw 25 81 47 1 1 Hole Plug 26 L604 1 Caution Label Electrical 27 L605 1 Caution Label Chemical 28 44 125 1 Solenoid Cover 29 44 116 1 1 Cover Screw 30 44 123 4B 1 Solenoid Valve Detergent Dry Feed Models 31 44 124 2 2 Solenoid Mounting Screw 32 44 29 2 Lock Washer 33 44 90 2 Hex Nut 34 25 65RE 11 2 Squeeze Tube Rinse 35 25 65CE 11 1 Squeeze Tube Detergent Table 3 Control Board Accessory Components Board Number Modular Terminal Shunt Coin Cell Battery 80 117 1 81 13 10 None None 80 69 5 81 13 8 82 5 None 80 77 4 81 13 6 None 80 99 1 808 Rev C 29421 Pg 6 of 8 DEMA Master DM 812 Series Installation Manual 9 SS a Kg EE Nis GA Ly tmm EN C2 PUMP ASSEMBLY C2 Pump Replacement Parts Item No DEMA Part Description Number 1 25 91 C2 C2 Pump Head Gasket 2 25 67C2 2 C2 Pump Head 3 25 84C2 C2 Roller Block 2 roller 4 25 83C2 2 C2 Face Plate 5 25 85S 10 32 X 134 Machine Screw 6 25 85L 10 32 X 214 Machine Screw 7 25 C2D C2 Pump Head Kit kit includes C2 Pump parts listed except squeeze tubes 25 65CE 11 12 OD x 4 ID Squeeze Tube EPDM 8 25 65RE 11 VOD x 3 16 ID Squeeze Tube EPDM 25 65CV 11 12 OD x 4 ID S
5. l Box 2 81 5 1 DEMA Master Double Control Box Lid 3 81 6 1 Hinge and Screw Kit 4 81 1 1 Mounting Bracket Kit 1 Qty Model No ends 1T 5 80 70 2 O Model No ends 2T Transformer 40VA Terminal Block amp Bracket Assy Detergent units with 2 6 81 10 1 1 transformers 7 81 10 2 1 Terminal Block amp Bracket Assy Rinse units with 2 transformers 8 81 10 5 1 Terminal Block amp Bracket Assy units with 1 transformer 9 44 116 1 2 Transformer 8 x 1 2 HI LO Screw mounting transformer 10 81 35 1 Transformer Fuse Holder 11 81 34 16 1 Transformer Fuse 1A 250V 12 81 36 2 1 Transformer Blue Wire Nut 13 80 59 60MK 1 60 RPM Gear motor 14 80 59 15MK 1 Rinse 15 RPM Gear moter Pro bless Detergent Control circuit board for controlling 15 80 77 4 1 detergent 16 80 69 5 1 for 812 Models Rinse Control Board circuit board for controlling rinse 17 18 81 20 2 3 control board 4 HI LO Screw mounting circuit boards Coin Cell Battery CR2032 for Probeless Detergent 19 80 99 1 Control Board Modular Connector 10 pole for Concentration Control 81 13 10 1 20 Board 81 13 6 1 Modular Connector 6 pole for Probeless Detergent Control Board Modular Connector 8 pole for Rinse and or Sanitizer 2 817138 4 Control Board 22 81 94 1 2 1 transformer units 18 AWG Orange Wire 8 lon
6. oncerning discharge tube connection Detergent Tubing Connections 1 Install the bulkhead fitting into the dish or cleaning machine wash tank Included with the kit is a bulkhead fitting that will accept the discharge of the detergent at the machine There are two fittings depending on if the DEMAMaster has a detergent pump or solenoid valve e Detergent pump The fitting will have a 4 compression fitting that will accept the 4 LDPE pump discharge tubing e Solenoid valve The fitting will have a barb fitting designed for a 5 8 I D tube e For either fitting a 7 8 diameter hole will need to be cut above the waterline in the side of the dish machine wash tank to accommodate the bulkhead fitting e Note When using a concentration probe the bulkhead fitting should not be located above the concentration probe 2 Attach Tubing to fittings e When using the detergent pump simply run the tubing from the outlet of the pump to the 4 compression fitting on the bulkhead fitting e When using the solenoid valve run the 14 tubing from the 4 compression fitting on the outlet of the valve to the siphon breaker for the solid bowl or powder feeder Additionally it will be necessary to attach a 4 water supply tube to the inlet of the solenoid valve The water pressure should not exceed 125psi Rinse Sanitizer Tubing Connections Note To confirm identify which pump is the rinse and which is the sanitizer press the rinse prime button
7. queeze Tube Viton I 808 Rev C 29421 Pg 7 of 8 DEMA Master DM 812 Series Installation Manual C4 PUMP ASSEMBLY C4 Pump Replacement Parts Item No DEMA Part Number Description 1 25 114C4 C4 Pump Head Gasket 2 25 129 1 C4 Pump Head Assembly 3 25 86C4 C4 Roller Block Assembly 4 25 87C4 C4 Face Plate 5 25 85 5 10 32 x 1 Machine Screw 6 25 89CE 14 Squeeze Tube 5 8 OD x 3 8 ID Return Policy No merchandise may be returned for credit without DEMA Engineering Company s written permission Return Merchandise Authorization RMA number required in advance of return Warranty DEMA products are
8. rmer Pump or Valve Control Board E Hook Up EoWer Qty Detergent Rinse Detergent Rinse DM 812 LL 2T Pump C2 81 117 1 DM 812 DL 2T 2 Valve DM 812 PLL 2T Pump C2 80 77 4 DM 812 PDL 2T Valve DM 812 LL 1T Pen pe Pump C2 Pump 81 117 1 80 69 5 DM 812 DL 1T 1 Valve C2 DM 812 PLL 1T Pump C2 80 77 4 DM 812 PDL 1T Valve DM 812 LL 0T Pump C2 ree DM 812 DL OT 24VAC None Valve 81 117 1 DM 812 PLPL 2T 120 208 240VAC 2 Pump C4 Ee 80 77 44 80 77 4 This unit is setup with 2 probeless control boards and 2 105rpm C4 pumps This unit does not have a typical rinse pump configuration 1 808 Pg 2 of 8 Rev C 29421 DEMA Master DM 812 Series Installation Manual Electrical Installation AlI installations must be in accordance with city county state or provincial electrical codes and be performed by a certified electrician It is recommended to use a local licensed electrical contractor for the installation of this product 1 All electrical power must be turned off to the dish or cleaning machine and any other circuits that is to be Lockout and tag procedures must be observed when installing this device Never open the DEMAMaster while power is applied Signals may be active from cleaning machine even with the DEMAMaster power turned off Use appropriately rated insulated wiring electrical fixtures and used for this installation other materials that meet all applicable electrical and building codes 2 Wire the DEMAMaster
9. to the dish or cleaning machine The wiring configuration will depend on the transformer configuration of the DEMAMaster It will have either 1 2 or no transformers transformers are setup to utilize 120 208 240VAC 60Hz power 2 Transformers see figure 1 Each transformer will be wired to a control board individually The power should be wired to the appropriate transformer based on the control board Detergent in most cases will be supplied during the wash cycle The power can be picked up parallel with the low voltage side of the wash pump Rinse board will be powered during the rinse cycle The power can be picked up parallel with the rinse solenoid There may be alternatives than those listed above Additionally the dish or cleaning machine may be equipped with terminals specifically for wiring an automatic chemical dispenser 1 Transformer see figure 2 Both boards are powered off the same transformer 1 808 Rev C 29421 Power in comes from main power of machine Detergent board always has power and operates accordingly Rinse is cycled on by use of the pressure switch mounted to the rinse manifold This type of hook up is normally on a conveyor type machine not a door machine No Transformers Both boards must be powered directly at the 24VAC in terminals on each board This is used on special applications where 24VAC 60Hz is available to operate the control boards properly See the control board instruction sheet for location of 2
10. warranted against defective material and workmanship under normal use and service for one year from the date of manufacture This limited warranty does not apply to products that have a normal life shorter than one year or failure and damage caused by chemicals corrosion improper voltage supply physical abuse or misapplication Rubber and synthetic parts such as O rings diaphragms squeeze tubing and gaskets are considered expendable and are not covered under warranty This warranty is extended only to the original buyer of DEMA products If products are altered or repaired without prior approval of DEMA this warranty will be void Defective units or parts should be returned to the factory with transportation prepaid If inspection shows them to be defective they will be repaired or replaced without charge F O B factory DEMA assumes no liability for damages Return merchandise authorization number to return units for repair or replacement must be granted in advance of return 1 808 Pg 8 of 8 Rev C 29421
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