Seifert 871500201USL User manual

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Table of Content 871500201USL

1. User manual 2 ..................................................................................................................................

2. Legal regulations 2 .........................................................................................................................

3. Safety instructions 3 ......................................................................................................................

4. Settings 4 .........................................................................................................................................

5. Functional principle 8 .....................................................................................................................

6. Technical data 9 ..............................................................................................................................

7. Mounting 10 .....................................................................................................................................

8. Condensate management 11 .........................................................................................................

9. Mounting Principle 12 .....................................................................................................................

10. Electrical connection 13 ...............................................................................................................

11. Controller 15 ..................................................................................................................................

12. Wiring diagram 19 .........................................................................................................................

13. Taking into operation 20 ..............................................................................................................

14. Trouble shooting 20 ......................................................................................................................

15. Maintenance & Cleaning 21 .........................................................................................................

16. Transport & Storage 22 ................................................................................................................

17. Parts supplied / Spare parts / Accessories 22 ..........................................................................

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1. User manual

This instruction manual contains information and instructions to enable the user to work safely, correctly and

economically on the unit. Understanding and adhering to the manual can help one:

Avoid any dangers.

Reduce repair costs and stoppages.

Extend and improve the reliability and working life of the unit.

PLEASE ENSURE TO USE THE RIGHT VERSION OF THE INSTRUCTION MANUAL SUITABLE FOR YOUR

UNIT.

Intended use

󰾬The unit is to be used exclusively for the dissipation of heat from control cabinets and enclosures in order to

protect temperature sensitive components in an industrial enviorment. To meet the conditions of use, all the

information and instructions in the instruction manual must be adhered to.

General danger

Indicates compulsory safety regulations which are not covered by a speciﬁc

pictogram such as one of the following.

󰾬

High electric voltage

Indicates electric shock danger.

Important safety instruction

Indicates instructions for safe maintenance and operation of the unit.

Attention

Indicates possible burns from hot components.

Attention

Indicates possible damage to the unit.

Instruction

Indicates possible danger to the environment.

2. Legal regulations

Liability

The information, data and instructions contained in this instruction manual are current at the time of going to

press. We reserve the right to make technical changes to the unit in the course of its development. Therefore,

no claims can be accepted for previously delivered units based on the information, diagrams or descriptions

contained in this manual. No liability can be accepted for damage and production caused by:

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Disregarding the instruction manual

Operating error

Inappropriate work on or with the unit

The use of non-speciﬁed spare parts and accessories

Unauthorised modiﬁcations or changes to the unit by the user or his personnel

The supplier is only liable for errors and omissions as outlined in the guarantee conditions contained in the main

contractual agreement. Claims for damages on any grounds are excluded.

3. Safety instructions

Upon delivery the unit is already meeting current technical standards and can therefore be safely taken into

operation. Only authorised personnel is allowed to work on the unit. Unauthorised personnel must be prohibited

from working on the unit. Operating personnel must inform their superiors immediately of any malfunction of

the unit.

Please note that before starting to work on or with the unit, a procedure must be carried out inside the cabinet

on which the unit is to be mounted.

Before commencing work inside the cabinet, the control cabinet manufacturer's instruction must be read with

regards to:

Safety instructions.

Instructions on taking the cabinet out of operation.

Instructions on the prevention of unauthorised cabinet reconnection.

The electric equipment meets the valid safety regulations. One can ﬁnd dangerous voltages (above 50 V AC or

above 100 V DC)

Behind the control cabinet doors.

On the power supply in the unit housing.

The unit has to be operated according to the type plate and the wiring diagram, and must be protected

externally from overloading and electrical faults via suitable protective devices.

Danger through incorrect work on the unit

The unit can only be installed and maintained by technical competent and qualiﬁed personnel,

using only supplied material according to the supplied instructions.

󰾬

Danger from electrical voltage

Only specialised personnel are allowed to maintain and clean the unit. The personnel must

ensure that for the duration of the maintenance and cleaning, the unit is disconnected from

the electrical supply.

Attention

Damage to the unit through the use of inappropriate cleaning materials. Please do not use

aggressive cleaning material.

Instruction

Damage to the environment through unauthorised disposal. All spare parts and associated

material must be disposed according to the environmental laws.

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4. Settings

The cooling unit is intended to be used as a complementary accessory to larger industrial equipment. The unit

is used where heat needs to be dissipated from electrical control cabinets or similar enclosures in order to

protect heat sensitive components. It is not intended for household use.

The unit has two completely separate air circuits which ensure that the clean cabinet air does not come into

contact with the ambient air which may well be dirty or polluted.

Enclosure cooling units can dissipate large quantities of heat from sealed enclosures such as electrical

enclosures into the ambient air and at the same time reduce the cabinet internal temperature to below that of

the ambient air.

The unit can function without problems in extreme ambient conditions (e.g. dusty and oily air) with a standard

operating temperature ranging between -40°F and 140°F. Units can be ordered with an additional electrical

cabinet heater. For the cooling capacities and evironmental ratings please refer to the type plate data.

Controller

The display shows the temperature in the range of -50°C to +150°C (-58°F to +302°F). The temperature is

displayed with resolution of tenths between -19.9°C and +99.9°C (-3.8°F to +211.8°F). During programming, it

shows the codes and values of the parameters. The display also shows icons according to occurring events.

Display icons

Icon Function Description

1 Compressor relay active Flashes when activation is delayed or inhibited by

protection times, external disabling or other procedures

in progress

2 Alarm relay active

3 Heater relay active

4 Ambient blower relay active

Alarm Flashes when alarms are active

Heating mode Signals operation of unit in heating mode

Cooling mode Signals operation of unit in cooling mode

TEST Test mode in progress Activated only by manual procedure

Programming

The operating parameters can be modiﬁed using the front keypad. Access diﬀers depending on the type of

parameter. Access to conﬁguration parameters is protected by a password that prevents unwanted

modiﬁcations or access by unauthorised persons.

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Setting cooling set point, St1:

1. Press “SET” and display should show St1 and then the pre-set value of St1. (default: +35°C / +95°F)

2. Reach the desired value by using ▲ or ▼.

3. Press “SET” again to save the new value of St1.

Setting heating set point, St2 (only for units supplied with internal heater):

1. Press “SET” twice slowly and display should show St2 and then the pre-set value of St2. (default: +5°C /

+41°F)

2. Reach the desired value by using ▲ or ▼.

3. Press “SET” again to save the new value of St2.

󰾬Setting temperature units (°C / °F), low temperature alarm and high temperature alarm:

1. Press “PRG” button for 5 seconds to reach the modiﬁable parameter list.

2. Use ▲ or ▼ to reach the desired parameter:

C18 for temperature unit of measure

°C = 0

°F = 1

P25 for low temperature alarm threshold (default -10°C / +14°F)

P26 for high temperature alarm threshold (default +55°C / +131°F)

c68 for door contact NO/NC logic change (0=ON if closed, 1=ON if open)

Controller ﬁrmware rev. 1.2 or higher.

3. Press “SET” on the desired parameter to display the current value.

4. Use ▲ or ▼ to reach the desired value.

5. Pressing “SET” temporarily saves the new value and returns to the parameters list.

6. Repeat steps 2-5 to set other parameters.

7. Press “PRG” for 5 seconds to permanently save the new values.

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Test function

Diﬀerent test functions can be used depending on the combination of keys pressed. Such tests run for the

duration of 4 minutes.

“SET+▲” tests Compressor and Ambient Blower relays.

“SET+▼” tests Alarms and Heater relays

Alarm Relay Operation

Both normally closed (NC) and normally open (NO) alarm contacts are provided. These refer to the alarm state.

Under normal conditions, the NC contact is closed and the NO contact is open. When an alarm condition is

present or the door contact is open, the NC contact will open and the NO contact will close. System power

failure will give an alarm condition.

State Alarm relay Display

1 System powered OFF

2 System powered ON

- NO ALARM

- Door Contact Closed

3 System powered ON

- Door Contact Open

4 System powered ON

- ALARM STATE

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Failure table:

The display shows either ‘’OFF’’ or “EXX” with an icon ﬂashing (triangle), alternating with the standard display. If

more than one error occurs, these are shown in sequence on the display.

Failure

Code Description Solution

OFF

Door open

Close the enclosure door and check the door contact switch. If no

door contact switch is used and c68=0, bridge terminals on power

connector.

Incorrect phase sequence

(3-phase units) Displayed on power-up. Check phase sequence.

E01 Failure internal

temperature sensor Check probe connections

E02 Failure ambient

temperature sensor Check probe connections

E04 High temperature alarm

The measured temperature has exceeded the threshold P26.

Check rating of the cooling unit. Clean air ﬁlters, condenser; check

fans’ and compressor’s correct operation. Contact your service

partner.

E05 Low temperature alarm The measured temperature has fallen below the threshold P25.

E07 / E08 Controller error Contact your service partner.

Important Notes:

Whilst programming, if no button is pressed for 10 seconds, the display starts ﬂashing, and after 1 minute

returns to the main display without saving changes.

To increase scrolling speed, press and hold the ▲ or ▼ button for at least 5 seconds.

When pressing “PRG” for 3 seconds, the ﬁrmware revision code is displayed for 2 seconds.

When cleaning the controller panel, do not use ethanol, hydrocarbons, ammonia or their by-products.

Use neutral detergents and water.

In order to protect the unit’s components, minimum relay output on (3 or 7 minutes) and oﬀ (4 minutes)

times and minimum time (7 or 11 minutes) between activation of the same relay output are applied.

In case of digital inputs not conﬁgured, probes not ﬁtted or conﬁgured, or St2 not enabled on the

controller the display shows ‘nO’.

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5. Functional principle

The cooling unit for enclosures works on the basis of a refrigeration circuit consisting of four main

components: compressor, evaporator, condenser and expansion device.

The circuit is hermetically sealed and R134a refrigerant circulates inside it (R134a is chlorine free and has an

Ozone Destruction Potential [ODP] of 0 and a Global Warming Potential [GWP] of 1430). The compressor

compresses the refrigerant (thus taking it to high pressure and high temperature), and pushes it through the

condenser, where it is cooled by ambient air thus passing from the gas to the liquid state. At the liquid state it

then passes through the capillary pipe being a much lower pressure the refrigerant arrives to the evaporator

where it absorbs the necessary heat to change from liquid to gas state. The gas is then drawn back into the

compressor completing the cycle.

1 Air intake cabinet side 6 Air intake ambient side

2 Radial fan cabinet side 7 Air intake ambient side

3 Evaporator 8 Condenser

4 Air outlet cabinet side 9 Air outlet ambient side

5 Compressor 10 Filter dryer

11 Expansion device

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6. Technical data

Order Number 871500201USL

Cooling capacity 95F/95F 5120 BTU

Cooling capacity 95F/122F 3650 BTU @ 50 Hz

3820 BTU @ 60 Hz

EER 95F95F 6.7 / 6.1

Compressor type Reciprocating compressor

Refrigerant / GWP R 134a / 1430

Refrigerant charge 275 g / 9.7 oz

High / low pressure 435 / 87 psig

Operating temperature range -40˚F - 140˚F

Air volume ﬂow (system / unimpeded) Ambient: 330 / 520 cfm

Enclosure: 360 / 520 cfm

Mounting Wall mounted

Housing Material Mild steel, powder coated

Dimension H x W x D 35 x 15.6 x 12 inch

Weight 89 lbs.

Voltage / Frequency 230 V ~ 50/60 Hz

UL Voltage / Frequency 230 V ~ 60 Hz

Current 95F95F 3.4 A @ 50 Hz

3.7 A @ 60 Hz

Starting current 16 A

Max. current 4.5 A

Nominal power 95F95F 740 W @ 50 Hz

855 W @ 60 Hz

Max. power 1.08 kW

Fuse 15 A (T)

Max circuit ampacity 15 A

Short-circuit current rating 5 kA

Rated current compressor 2.5 A

Full load current fans 0.73 A

Connection 5 pole terminal block for signals, 4 pole terminal block for

power

Ingress protection IP 56 / Type 12, 3, 3R, 4

Approvals CE, UL(ACVS), cULus

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7. Mounting

Unpacking unit:

Please follow the below steps to unpack the unit.

STEP 1:

Stand the air conditioner upright with the pre-cut packaging opening facing up.

STEP 2:

Pull oﬀ the packaging opening.

STEP 3:

Hang the transport loop of the unit in the transport hook and lift it slightly.

STEP 4:

Pull oﬀ the packaging and slide out the tray with installation material and the short version of the operating

manual.

STEP 5:

Pull oﬀ the remaining packaging.

STEP 6:

The cooling unit can now be attached to the enclosure.

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