Dungs CPI 400 Bedienungsanleitung

Closed position indicator that visually and electrically displays when the valve is either in the closed or open position. Mounts

directly to the DMV, SV, MVD and HSAV series valves. When the valve is closed (NO position) a orange light is visible, when

the valve is open (NC position) a green light is visible.

Gases

Natural gas, Propane, Noncorrosive gases, and Air

Switch Type

SPDT

Switch Action

valve open: switch in NC position, Green light

valve closed: switch in NO ,position, Orange light

Contact Rating

10 A res, 8 FLA, 48 LRA @120 Vac

Enclosure

NEMA 4 when 1/2” NPT to PG11 adapter is sealed

with RTV.

CPI 400

Installation Manual

SPECIFICATIONS

Mounting

• The valve must be de-energized and the gas supply shut

off before mounting the CPI 400.

• Disconnect all power to the switch before beginning to

prevent electrical shock and equipment damage.

Mounting Procedure (reference Fig. 1 on page 2)

• IMPORTANT!! Before mounting the bass adapter to the

valve or to the CPI 400, use your ﬁngers to verify that

the pin slides freely inside the brass adapter. If this

pin is does not slide freely, apply a large enough force

to the appropriate side to free the pin.

• Using a 5 mm hex wrench, remove the plug and its oring

located at the bottom of the valve.

• Verify that the brass adaptor has a clean oring, and its

threads and the groove, into which the brass adapter

mounts, are clean and in good condition.

• Mount the brass adapter into the valve.

• Use a 9/16” (14 mm) open end wrench and turn 1/4

to 1/2 additional turn (after ﬁnger tight). DO NOT over

INSTALLATION

• Read these instructions carefully.

• Failure to follow them and/or improper installation may

cause explosion, property damage and injuries.

• Installation must be done with the supervision of a

licensed burner technician.

• The system must meet all applicable national and local

code requirements.

• Check the ratings above and on the switch

to make sure that it is suitable for your application.

• Never perform work if gas pressure or power is applied,

or in the presence of an open ﬂame.

• Protect surfaces. Make sure that seals and O - rings are

clean and in good condition.

• Once installed, perform a complete checkout including

a gas leak test.

• Label all wires prior to disconnecting when servicing

switches. Wiring errors can cause improper and danger-

ous operation.

• Verify proper operation after servicing.

CPI 400 Installation Manual - 80114 - 01/2006

tighten.

• Mount the CPI switch onto the brass adaptor. Push the

CPI housing towards the valve until it stops.

• Turn/Position the CPI so that the wiring and condiut con-

nection apply the least amount of torque as possible.

• Tighten the set screw so that the CPI housing is secured

to the brass adaptor.

• Do not turn the CPI 400 after tightening the set screw; this

may strip the brass adatper. The brass adaptor could

loosen and the asembly may leak.

• Perform a leak test to verify that no leakage occurs around

the oring.

Karl Dungs Inc.

•524 Apollo Drive Suite 10 Lino Lakes, MN 55014, U.S.A. • Phone 651-792-8912 • Fax 651-792-8919

Required Wiring:

• Do not exceed the electrical ratings given in the switch

speciﬁcations.

• Use 14 or 16 guage wire for at least 75˚C (167˚F).

• For NEMA 4 applications, NEMA 4 conduit or wiring

methods must be used.

• Run one wire (the COMMON) to the L1 terminal, one

to the GROUND terminal, one from the NO terminal to

the Proof of Closure terminal of the Flame Safeguard,

and one (the NEUTRAL) to L2 on the CPI 400.

NOTE: If N is not wired to L2, the lights will not prop-

erly indicate the valve position. The ORANGE light

shall be on when the valve is closed, The GREEN light

shall be on when the valve is open (FM and NPFA 86

requirement).

The CPI 400 must be calibrated to the speciﬁc valve it is used

on. Failing to properly calibrate this switch may need lead to

nuisance problems or to an unsafe startup condition.

Calibrating the CPI: (Reference Fig. 2)

• The CPI must be properly mounted to the valve, and the

valve must be closed.

• Disconnect all power to the CPI 400 before adjusting

to prevent electrical shock and equipment damage.

• Remove clear cover.

• Turn the adjustment dial counterclockwise until it stops.

• Then turn the adjustment dial clockwise until the

switch makes. If by chance there is too much noise to hear

the switch trip, proceed to Calibrating the CPI in noisy

environments.

• Note the position of the set point in reference to the

white lines on the scale.

• Turn the adjustment dial two additional increments clock

wise to the same relative position.

• Replace clear cover, the CPI is now adjusted.

Calibrating the CPI in noisy environments:

• Verify that there are no stray wires that are potentially a

shock hazard while the dial is being manually adjusted.

Calibration and Testing

Fig. 3 NO contact is open when valve is OPENED.

NO contact is closed when valve is CLOSED.

Fig. 2

• Apply 120Vac to terminals L1 and L2 of the CPI.

• Turn the adjustment dial counterclockwise until it

stops. The GREEN Light should be illuminated.

• Then turn the adjustment dial clockwise until the

RED light illuminates.

• Note the position of the set point in reference to the

white lines on the scale.

• Turn the adjustment dial two additional increments clock-

wise to the same relative position.

• Replace clear cover, the CPI is now adjusted.

Annual Testing

• Perform a switch continuity test at least annually to verify

that there is continuity between the switch contacts 3

(COM) and 2 (NO), and verify that there is no continuity

between the switch contacts 3 (COM) and 1 (NC).

• Then, energize the valve that the CPI is mounted to, and

verify that there is continuity between the switch contacts

3 (COM) and 1 (NC). Then verify that there is no continuity

between the switch contacts 3 (COM) and 2 (NO).

• If any above check fails, do not use the CPI and contact

DUNGS as soon as possible.

Fig. 1

O-Ring

Set Screw

Brass Adapter

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