Dema DC844 Installation Manual

Overview

DC844 CIP SYTEM NE UNITS

Installation Instruction

The DC844 NE units are designed to be used with CIP systems or as stand alone pump systems.
The NE units have no electronics in them and are designed to be used with equipment that can
provide the appropriate operation signal to the pump motors.

The unit includes three AC or DC motors that run peristaltic pumps. The motors are to be hooked
into terminal blocks in the back of the unit then connected to the logic controller of your choice.
The unit also comes with a lock and key set and conduit fittings to help enclose all wires being
run into the unit.

Warnings

Installation of DEMA products must meet all applicable electrical codes and
regulations established by national, city, county, parish, provincial or other
agencies. It is possible that electrical codes and regulations require that a certified
electrical contract or or engineer perform the electrical installat ion. For questions,
contact a certified electrician.

All installations must conform to local plumbing codes and use approved
backflow prevention devices. A pressure indicating tee is to be installed with
existing faucets according to local plumbing codes in the state of Wisconsin and
any other state that requires the use of a pressure indicting tee.

ALWAYS WEAR PROTECTIVE CLOTHING AND EYEWEAR WHEN

WORKING WITH CHEMICAL PRODUCTS.

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Rev. -- 4/16/09

Packing List

JG FITTING

OPERATING

PART NO.

DC844.3JJJ.NE 84.176.3 24 VDC 1.5

DC844.3PJJ.NE 84.175.8 24 VDC 1.5

DC844.3PPP.NE 84.175.7 24 VDC 1.5

DC844.2PP.NE 84.175.9 24 VDC 1.5

DC844.1P.NE 84.175.10 24 VDC 1.5
DC844.3PPP.230.NE 84.175.7 230 VAC 50/60
DC844.3PPP.120.NE 84.175.7 115 VAC 60 HZ

DC844-3JJJ-120-NE 84-175-3 115 VAC 60 Hz
DC844-3JJJ-230-NE 84-175-3 230 VAC 60 Hz

DC844-2PP-120-NE 84-175-9 115 VAC 60 Hz
DC844-2PP-230-NE 84-175-9 230 VAC 60 Hz

DC844-2JJ-NE 84-175-2 24 VDC 1.5
DC844-2JJ-120-NE 84-175-2 115 VAC 60 Hz
DC844-2JJ-230-NE 84-175-2 230 VAC 60 Hz

KIT

VOLTAGE

AMPS HERTZ

SHOWN WITH DC MOTORS

Ambient Temperature: 39ºF - 122ºF (4ºC to 50ºC)

Use the terminal block located inside the DC844 to connect motors to the controlling equipment.
Refer to the above table for appropriate operational voltage.

Overall Size

SHOWN
WIT H AC
MOTORS

The two pictures show o ne of the case opened and one of the case closed to estimate the total
space needed to service the case as well. The mounting hole pattern is shown as well.

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Rev. -- 4/16/09

Parts List

NO. DEMA NO. DESCRIPTION

1 81.289.230MK

80.59.105MK
2 81.122.1 PUMP BLANK PLUG
3 81.69 LOCK AND KEY SET
4 81.148.3 1/2” CONDUIT FITTING
5 81.15.4 BARRIER STRIPS

230V AC 50/60HZ 60 RPM MOTOR
24V DC 105 RPM GEAR MOTOR

SHOWN
WIT H AC
MOTORS

2

NO. DEMA NO. DESCRIPTION

1 84.209.1

81.174.1

2 84.207.1

81.172.1

3 84.208.1

81.177.1

84.208.3

81.177.4

84.208.5

81.177.5
4 25.85.2 10-32 X ½ SS PHIL SCREW
5 84.188.1

81.128.2

PUMP COVER ASSEMBLY (P)
PUMP COVER ASSEMBLY (J)
ROLLER BLOCK ASSEMBLY (P)
ROLLER BLOCK ASSEMBLY (J)
SQUEEZE TUBE ASSEMBLY, EPDM (P)
SQUEEZE TUBE ASSEMBLY, EPDM (J)
SQUEEZE TUBE ASSEMBLY, SILICONE (P)
SQUEEZE TUBE ASSEMBLY, SILICONE (J)
SQUEEZE TUBE ASSEMBLY, VITON (P)
SQUEEZE TUBE ASSEMBLY, VITON (J)

LARGE PUMP BASE (P)
SMALL PUMP BASE (J)

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Rev. -- 4/16/09

Warranty

Merchandise Returns

No merchandi se will be returned for credit without DEMA’S written permission. Returned Merchandise
Authorizat ion Number is required in advance of return.

Product Warranty

DEMA products are 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 any products that have
a norma l life shorter than one year or failure and damage caused by chem icals, corr osion, physical abuse,
or misapplication. Rubber and synthetic rubber parts such as “o”-rings, diaphragms, PVC tubing, and
gaskets are considered expendable and are not covered under warranty. This warranty is extended only to
the original buyer of DEMA pr oducts . If pr oducts are alter ed or repaired withou t prior approval of DEMA,
this warranty is void.

Defective units or parts should be returned to the factory with transportation prepaid. If inspection shows
them t o be de fect ive, th ey wil l be rep aired or r epla ced with out ch ar ge, F. O. B. fact or y. DEMA assum es n o
lia bility for dam ages. Retu rn merchan dise auth orization n umber mu st be grant ed in advan ce of return ed
unit s for repair or replacement (See “Merchandise Return s” above).

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Rev. -- 4/16/09