Defensor H15A, Defensor PH28, Defensor PH15, Defensor PH27, Defensor PH28A Service Manual

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SERVICE MANUAL

2543355 EN 1310

Adiabatic Humidiﬁers

Defensor PH15/PH15A Defensor PH27/PH27A Defensor PH28/PH28A

For internal use only!

Contents

1 Introduction 4

2 Working with the service and diagnostic level 5

2.1 Overview service and diagnostic level 5

2.2 Settings in the service level 6

2.2.1 Viewing/deleting the error list 6

2.2.2 Setting the correction value for the internal humidity sensor 6

2.2.3 Setting the correction value for the external radio humidity sensor 7

2.2.4 Selecting the signal source from which the actual humidity value is taken 7

2.2.5 Modifying the remaining operation time until a ﬁlter change warning is triggered 8

2.2.6 Calling the diagnostic level 8

2.2.7 Setting the unit type 9

2.2.8 Interrogation of the software version 9

2.3 Diagnostic level 10

2.3.1 Selecting the diagnostic level 10

2.3.2 Operating status of the carriage/rear cover lock switch 10

2.3.3 Operating status of the leakage sensor (option) 10

2.3.4 Operating status of the level switch 11

2.3.5 Operating status of the safety switch 11

2.3.6 Opening and closing the inlet valve Y1 12

2.3.7 Opening and closing the inlet valve Y2 12

2.3.8 Checking the fan levels 13

2.3.9 Switching on and off the centrifuge/drum drive 13

2.3.10 Checking the error relay 14

2.3.11 Checking the error LED (red) 14

2.3.12 Checking the operation LED (no function) 15

2.3.13 Checking the safety valve relay KY1 15

2.3.14 Checking the buzzer 16

2.3.15 Resetting the unit to factory default settings 16

3 Installation of options 17

3.1 Installation of the silver ionization (for PH15/PH15A only) 17

3.2 Installation and commissioning of the external radio humidity sensor 20

3.3 Installation of the leakage sensor (PH15/PH15A and PH27/PH27A) 23

3.3.1 Installation of the leakage sensor (PH15/PH15A) 23

3.3.2 Installation of the leakage sensor for PH27/PH27A 25

4 Replacing unit components 27

4.1 Replacing the level switch/safety switch 27

4.1.1 Replacing the level switch/safety switch on the PH15/PH15A 27

4.1.2 Replacing the level switch/safety switch on the PH27/PH27A 28

4.1.3 Replacing the level switch/safety switch on the PH28/PH28A 29

4.2 Replacing silver ionization rods 31

4.2.1 Replacing silver ionization rods on the PH15/PH15A 32

4.2.2 Replacing silver ionization rods on the PH27/PH27A 33

4.2.3 Replacing silver ionization rods on the PH28/PH28A 34

4.3 Replacing the control board 35

5 Fault elimination 37

5.1 Event messages 37

5.2 Warning messages 37

5.3 Error messages 38

5.4 What, if...? 39

6 Appendix 41

6.1 Wiring diagram PH15/PH15A 41

6.2 Wiring diagram PH27/PH27A 42

6.3 Wiring diagram PH28/PH28A 43

1 Introduction

This service manual is meant for well trained service personnel, which is entrusted with the service and repair work on the Defensor PH15/PH15A, Defensor PH27/PH27A or Defensor PH28/PH28A.

The service manual is a supplement of the existing operating instructions of the Defensor PH15/ PH15A, Defensor PH27/PH27A and the Defensor PH28/PH28A. It is assumed that the service personnel in charge with service and repair work has read and understood these operating instructions, particularly the safety instructions.

Cover Closed

Leakage sensor Open

Float switch Closed

Sec.float switch Closed

Valve Y1 Closed

Valve Y2 Closed

Error History 8/8/6/6

Calibr. Internal + 2%rH Act:38%rH

Calibr. Radio + 2%rH Act:38%rH

Act.Value Source Internal

Filter 0000

Diagnostic Program

Model type PHXX

2 Working with the service and diagnostic level

2.1 Overview service and diagnostic level

Software VX.XX

Drive Off

Error relay Off

LED1 Error Off

LED2 Operation Off

Relais KY1 Off

Buzzer 0

Fan power 0

EEPROM Clear

Code 8808

+ >3 s

Code wrong

Service level Diagnostic level

Call service level: Press both arrow keys until the

code entry display appears (approx. 3 seconds).

PHXX Act 38%rH B2

Act 38%rH B2 Set 45%rH

PH28/PH28A

PH15/PH15A / PH27/PH27A

2.2 Settings in the service level

2.2.1 Viewing/deleting the error list

Delete error list:

press <Enter> key >3 seconds

With this function you can view the error list with the last 4 malfunctions occurred and if required, delete the error list. Note: The error list can give you important information for the elimination of malfunctions. Therefore the error list should be deleted only, after a possible malfunction has been eliminated.

Error History

1/4/1/2

(see chapter 2.2.8)

(see chapter 2.2.2)

With this function you can determine a correction value, if the actual value of the integrated humidity sensor deviates from the value of a certiﬁed humidity measuring instrument. Note: Before the sensor is calibrated or the correction value is determined, the unit should have been some hours in the operation, so that the air around the sensor can adapt itself to the ambient air.

Setting range: -20 %rh ... +20 %rh

Factory setting: 0 %rh

2.2.2 Setting the correction value for the internal humidity sensor

Calibr. Internal

+02 %rH

Calibr. Internal

New Value

Calibr. Internal

Old Value

Calibr. Internal

+02%rH Act:38%rH

(see chapter 2.2.1)

(see chapter 2.2.3)

modify

conﬁrm

cancel

- 20%rh ... + 20%rh

Act.Value Source

Internal

Act.Value Source

New Value

Act.Value Source

Old Value

Act.Value Source

Internal

2.2.4 Selecting the signal source from which the actual humidity value is taken

(see chapter 2.2.3)

(see chapter 2.2.5)

modify

conﬁrm

cancel

Intern, Radio 1, Radio 2,

Radio 3 or Radio 4

With this function you can determine from which signal source the actual humidity value is taken.

Available settings: Internal (internal humidity sensor) Radio 1 (external radio humidity sensor channel 1) Radio 2 (external radio humidity sensor channel 2) Radio 3 (external radio humidity sensor channel 3) Radio 4 (external radio humidity sensor channel 4)

Factory setting: Internal

2.2.3 Setting the correction value for the external radio humidity sensor

(see chapter 2.2.2)

(see chapter 2.2.4)

modify

conﬁrm

cancel

- 20%rh ... + 20%rh

With this function you can determine a correction value, if the actual value of the external radio humidity sensor deviates from the value of a certiﬁed humidity measuring instrument. Note: Before the radio humidity sensor is calibrated or the correction value is determined, the radio humidity sensor should have been some hours in the operation, so that the air around the sensor can adapt itself to the ambient air.

Setting range: -20 %rh ... +20 %rh

Factory setting: 0 %rh

Calibr. Radio

+01 %rH

Calibr. Radio

New Value

Calibr. Radio

Old Value

Calibr. Radio

+01%rH Act:38%rH

Cover

Closed

Diagnostic

Program

2.2.6 Calling the diagnostic level

(see chapter 2.2.5)

(see chapter 2.2.7)

call diagnostic level

exit diagnostic level

Detailed information regarding the functions in the diagnostic level can be found in chapter 2.3 “Diagnostic level”.

Filter

0800

Filter

New Value

Filter

Old Value

Filter

0600

2.2.5 Modifying the remaining operation time until a ﬁlter change warning is triggered

(see chapter 2.2.4)

(see chapter 2.2.6)

modify

conﬁrm

cancel

This setting shows the remaining operation time in hours (related to the operation on fan level 1), until the ﬁlter change warning (warning 6) is triggered. Note: The ﬁlter change warning is triggered ﬁxed after 6000 operation hours (related to the operation on fan level 1).

If required the remaining operation time can be modiﬁed (e.g. increasing the value, if the ﬁlters are already very dirty). A reduction of the value (extension of the operation time) should be made only in exceptional cases.

Model type

PHXX

Model type

New Value

Model type

Old Value

Model type

PHXX

2.2.7 Setting the unit type

(see chapter 2.2.6)

(see chapter 2.2.8)

modify

conﬁrm

cancel

PH15 or PH15 A PH27 or PH27A PH28 or PH28A

With this setting you determine the unit type. Afterwards, in the operating display PH15 (for PH15 and PH15A) or PH27 (for PH27 and PH27A) or PH28 (for PH28 and PH28A) is displayed.

Available settings: PH15 (tank version), PH15A (fresh water version),

PH27 (tank version), PH27A (fresh water version) PH28 (tank version), PH28A (fresh water version)

Factory setting: depending on the unit

Notes on setting: This setting must be made only after the control board has been replaced or

after resetting the unit to factory defaults.

Software

VX.XX

2.2.8 Interrogation of the software version

(see chapter 2.2.7)

(see chapter 2.2.1)

Note: This is a display function only.

2.3 Diagnostic level

With the different functions in the diagnostic level you can interrogate and simulate operating conditions of the unit. These functions may help you to check the correct function of the unit and its components. When leaving the diagnostic level modiﬁed settings are reset.

2.3.1 Selecting the diagnostic level

Note: This is a display function only (no function for PH27).

Operating status: Closed (carriage/rear cover inserted and locked)

Open (carriage/rear cover not inserted or locked, lock switch is open, error 1 should be displayed).

Cover

Closed

(see chapter 2.3.15)

(see chapter 2.3.3)

Call the diagnostic level from the service level (see overview in chapter 2.1).

2.3.2 Operating status of the carriage/rear cover lock switch

2.3.3 Operating status of the leakage sensor (option)

(see chapter 2.3.2)

(see chapter 2.3.4)

Note: This is a display function only.

Operating status: Closed (contact of the leakage sensor is closed, no leakage present)

Open (leakage sensor has triggered or is defective, error 5 should be displayed)

Leakage sensor

Closed

2.3.4 Operating status of the level switch

(see chapter 2.3.3)

(see chapter 2.3.5)

Note: This is a display function only.

Operating status: Closed (water level in the base tub too low, warning 7 should be displayed)

Open (max. operation level in the base tub reached or exceeded)

Float switch

Closed

2.3.5 Operating status of the safety switch

(see chapter 2.3.4)

(see chapter 2.3.6)

Note: This is a display function only.

Operating status: Closed (water level in the base tub below the maximum admissible level)

Open (maximum admissible water level exceeded, error 2 should be displayed)

Sec.float switch

Closed

2.3.6 Opening and closing the inlet valve Y1

(see chapter 2.3.5)

(see chapter 2.3.7)

Open valve

With this function the inlet valve Y1 of the units PH15A, PH27A and PH28A can be opened and closed for testing. Note: the valve Y1 can only be opened and closed, if the safety switch and the leakage sensor are in operating status “Closed” (see chapter 2.3.4 and 2.3.5).

Close valve

Valve Y2

Open

Valve Y1

Closed

2.3.7 Opening and closing the inlet valve Y2

(see chapter 2.3.6)

(see chapter 2.3.8)

Open valve

With this function the inlet valve Y2 of the units PH15A, PH27A and PH28A can be opened and closed for testing. Note: the valve Y2 can only be opened and closed, if the safety switch and the leakage sensor are in operating status “Closed” (see chapter 2.3.4 and 2.3.5).

Close valve

Valve Y2

Open

Valve Y2

Closed

Fan power

New Value

Fan power

Old Value

Fan power

2.3.8 Checking the fan levels

With this function you can check the function or the different performance levels (0= switched off and levels 1… 4) of the fan. Note: the fan level can only be altered, if the carrier or the rear cover is inserted and locked (see chapter 2.3.2).

(see chapter 2.3.7)

(see chapter 2.3.9)

modify

conﬁrm

cancel

0 ... 4

2.3.9 Switching on and off the centrifuge/drum drive

(see chapter 2.3.8)

(see chapter 2.3.10)

switch on

With this function the centrifuge/drum drive can be switched on and off for testing. Note: the centrifuge/drum drive can only be switched on and off, if the carrier or the rear cover is inserted and locked (see chapter 2.3.2).

switch off

Drive

Off

2.3.10 Checking the error relay

(see chapter 2.3.9)

(see chapter 2.3.11)

switch on

With this function you can check the error relay. The error relay must switch audibly when the error relay is switched on and off. If the fan and the centrifuge/drum drive are running, they must stop as soon as the error relay is switched on.

switch off

Error relay

Off

2.3.11 Checking the error LED (red)

(see chapter 2.3.10)

(see chapter 2.3.12)

switch on

With this function you can check the red error LED. If switched on the LED must light.

switch off

LED1 Error

Off

2.3.12 Checking the operation LED (no function)

(see chapter 2.3.11)

(see chapter 2.3.13)

switch on

This menu option does not have a function.

switch off

LED2 Operation

Off

2.3.13 Checking the safety valve relay KY1

(see chapter 2.3.12)

(see chapter 2.3.14)

switch on

With this function you can check the safety valve relay KY1. The safety valve relay must switch audibly when the relay is switched on and off.

switch off

Relais KY1

Off

Buzzer

New Value

Buzzer

Old Value

Buzzer

2.3.14 Checking the buzzer

With this function you can check the functionality of the buzzer (0= buzzer off and buzzer levels 1...3).

2.3.15 Resetting the unit to factory default settings

(see chapter 2.3.13)

(see chapter 2.3.15)

modify

conﬁrm

cancel

0 ... 3

(see chapter 2.3.14)

(see chapter 2.3.2)

delete EEPROM:

press key >3 seconds

With this function you

can delete the EEPROM and reset the unit to factory default settings. Note: Please note, by deleting the EEPROM also the user settings are lost an reset to factory defaults. After resetting the unit type must be checked and if necessary set to the actual unit type.

Setting parameter Factory setting

Humidifying mode H

Fan power 1

Set humidity value 45 %rh

Timer program deleted

Timer off

Buzzer off

Unit type PH15

Calibr. Internal 0

Calibr. Radio 0

Filter hours 0

Error history –

Act.Value Source internal

EEPROM

Clear

Scope of delivery silver ionization kit (Art.-No: 2526530)

– 2 pcs. ionization rods with holder, washer and nuts

– Connecting cable

– 2 pcs. mounting brackets

Installation

1. Set the PH15/PH15A out of operation and disconnect it from the mains (unplug the mains cable).

On units PH15A additionally close the water supply and disconnect the supply line from the connection of the unit.

2. Remove water carrier/blanking cover.

3. Press the locking mechanism of the unit housing on both sides inward, then lift the housing

carefully upward from the mobile base.

3 Installation of options

3.1 Installation of the silver ionization (for PH15/PH15A only)

4. Pull ﬂoat protection cover “A” on both sides apart and remove protection cover forward.

5. Undo four screws of the ﬂoat mounting support “B”. Then, mount the mounting brackets “C”

and “D” (mounting bracket with the shorter branch “C” on the left) between the side panel and ﬂoat mounting support and ﬁx it again with the four screws. Note: The ﬂoat switches must not be removed.

6. Fix ionisation rod holders to the mounting brackets with a M6 nut as shown above.

7. Fix connecting cables with each a washer and a M6 nut to the ionization rod holders as shown

in the illustration above.

8. Attach ﬂoat protection cover to the ﬂoat mounting support.

9. Undo 4 screws of the cable duct cover “E” and remove cable duct cover.

10. Undo the 4 screws (Torx 15) of the cover of the electronic compartment and ﬂap the cover to

the side. Attention! The electronic components on the control board are very susceptible to electrostatic discharges. For the protection of these components, measures must be taken for all work on the control board to prevent damage caused by electrostatic discharge (ESD–protection).

11. Lead the connecting cable in the cable duct upward into the electronic compartment. Fix the

cable with the existing cable fasteners. Then, reattach the cable duct cover and ﬁx it with the 4 screws.

12. Connect the cable of the silver ionization to terminal X12.

13. Close cover of the electronic compartment and ﬁx it with the 4 screws.

14. Assemble the unit in reverse order of steps 1 to 3 and put it into in operation.

X12

3.2 Installation and commissioning of the external radio humidity sensor

Required components

– External radio humidity sensor with 9V battery and operating instructions (Art.-No.:2524759) – Receiver module (Art.-No.:2525353)

Installation

1. Set the PH... out of operation and disconnect it from the mains (unplug mains cable).

2. PH15/PH15A and PH27/PH27A: Remove air inlet lattice (PH15/PH15A) / air outlet lattice (PH27/

PH27A). Then, undo the 4 screws (Torx 15) of the cover of the electronic compartment and carefully ﬂap the cover to the side.

PH28/PH28A: Remove the three air outlet grills. Then, undo the two Phillips screws of the cover of the electronic compartment and carefully ﬂap the cover upwards.

Attention! The electronic components on the control board are very susceptible to electrostatic discharges. For the protection of these components, measures must be taken during all installation work to prevent damage caused by electrostatic discharge (ESD–protection).

3. Carefully insert the contact pins of the receiver module into the corresponding connection ter-

minal on the control board. Make sure the pins are not bent.

4. PH15/PH15A and PH27/PH27A: close cover of the electronic compartment and ﬁx it with the 4

screws (Torx 15). Then, insert air inlet lattice (PH15/PH15A) / air outlet lattice (PH27/PH27A) .

PH28/PH28A: carefully ﬂap the cover of the electronic compartment downwards and ﬁx the cover with the two Phillips screws. Then, insert the three air outlet grills in the desired position into the unit.

Installation of the external radio humidity sensor

1. If necessary adjust the channel at the external radio humidity sensor (factory setting: Channel

1). See paragraph “modify the channel at the radio humidity sensor” in this chapter.

2. Open the battery compartment and insert the battery (observe correct polarity), then close

battery compartment again.

3. Mount the radio humidity sensor at the desired location while observing the notes on locating a

radio humidity sensor (do not install in niches, do not install in places exposed to air ﬂow, etc.).

Commissioning/automatic channel adjustment

Radio sensor C2

ESC Install? OK

If the battery is inserted in the radio humidity sensor and the PH... is switched on and ready for use, the PH... detects automatically the external signal source and the corresponding channel.

If the channel is not yet set in the PH... the opposite display appears.

Press the <OK> key in order to conﬁrm the proposed channel. The signal source is automatically set to the external radio humidity sensor and the corresponding channel. Then, the unit returns to the normal operation display. Note: If you press the <ESC> key, the previous signal source (e.g. integrated humidistat) is maintained and the unit returns to the normal operation display.

If the channel is set in the PH... already, the opposite display appears to conﬁrm, that the communication between radio humidity sensor and unit functions. Conﬁrm the message by pressing any key. Then, the unit returns to the normal operation display.

Note: If the messages above are not conﬁrmed within 30 minutes, the unit returns automatically to the normal operation display and the unit continues running with previous settings.

Radio sensor C2

Test

1. In the normal operation display press simultaneously the and keys until the code entry display appears

(> 3 seconds) .

2. Enter the code “8808” and conﬁrm with the <Enter> key, to call the service level.

3. In the service level select the menu item

“Act.Value Source” with

key, then press the

<Enter> key.

4. Select the desired channel

(Radio 1 ... Radio 4)

using the or

key and conﬁrm the selection with the

<Enter> key.

5. Press the <Esc> key multiple times to return to the normal operation display.

Modifying the channel at the radio humidity sensor

1. Open the battery compartment and remove the battery.

2. Undo the screw and remove the housing cover.

Attention! The electronic components on the control board of the radio humidity sensor are very susceptible to electrostatic discharges. For the protection of these components, measures must be taken for the work on the control board to prevent damage caused by electrostatic discharge (ESD–protection).

3. Set the channel via the DIP switches on the control board (see illustration above).

4. Attach the housing cover and ﬁx it with the screw.

5. Insert the battery (observe correct polarity), then close the battery compartment.

Modifying the channel setting on the PH...

O N

1 2

O N

1 2

O N

1 2

O N

1 2

Channel 1

Channel 2

Channel 3

Channel 4

^ Act 38%rH HA

Set 45%rH

^ Act 38%rH HA

Set 45%rH

PHXX

^ Set 38%rH HA

PHXX

^ Set 38%rH HA

Code

8808

Act.Value Source

Radio 2

Act.Value Source

Radio 2

PH28/PH28A

PH15/PH15A / PH27/PH27A

3.3 Installation of the leakage sensor (PH15/PH15A and PH27/PH27A)

Scope of delivery leakage sensor (Art.-No.: 2527171)

Leakage sensor with connecting cable and salt tablet

4. Insert salt tablet into leakage sensor.

5. Place the leakage sensor at lowest point in the tub.

6. Undo 4 screws of the cable duct cover and remove cable duct cover.

3.3.1 Installation of the leakage sensor (PH15/PH15A)

1. Set the PH15/PH15A out of operation and disconnect it from the mains (unplug mains cable). On units PH15A additionally close the water supply and disconnect the water supply line from the unit.

2. Remove water carrier/blanking cover.

3. Remove air inlet lattice. Then, undo the 4 screws (Torx 15) of the cover of the electronic compartment and ﬂap the cover to the side. Attention! The electronic components on the control board are very susceptible to electrostatic discharges. For the protection of these components, measures must be taken for all work on the control board to prevent damage caused by electrostatic discharge (ESD–protection).

7. Lead the connecting cable in the cable duct upward into the electronic compartment. Fix the cable with the existing cable fasteners.

10. Assemble the unit in reverse order of steps 1 to 3 and put it into in operation.

8. Reattach the cable duct cover and ﬁx it with the 4 screws.

9. Connect the cable of the leakage sensor to terminal X6.

4. Insert salt tablet into leakage sensor.

5. Place the leakage sensor at lowest point in the tub.

6. Lead the connecting cable in the cable duct upward into the electronic compartment. Fix the cable with the existing cable fasteners.

3.3.2 Installation of the leakage sensor for PH27/PH27A

1. Set the PH27/PH27A out of operation and disconnect it from the mains (pull out mains plug). On units PH27A additionally close the water supply and, if necessary, disconnect the water supply line from the unit.

2. Remove air intake grill on the side of the mains cable.

3. Remove air outlet lattice. Then, undo the 4 screws (Torx 15) of the cover of the electronic compartment and ﬂap the cover to the side. Attention! The electronic components on the control board are very susceptible to electrostatic discharges. For the protection of these components, measures must be taken for all work on the control board to prevent damage caused by electrostatic discharge (ESD–protection).

7. Connect the cable of the leakage sensor to terminal X6.

8. Assemble the unit in reverse order of steps 1 to 3 and put it into in operation.

4 Replacing unit components

4.1 Replacing the level switch/safety switch

4.1.1 Replacing the level switch/safety switch on the PH15/PH15A

Required components

Level switch PH15/PH15A (Art.-No.: 2571368) Safety switch PH15/PH15A (Art.-No.: 1103785)

Replacement

1. Set the PH15/PH15A out of operation and disconnect it from the mains (unplug mains cable). On units PH15A additionally close the water supply and disconnect the supply line from the connection of the unit.

2. Remove water carrier/blanking cover.

3. Press the locking mechanism of the unit housing on both sides inward, then lift the housing carefully upward from the mobile base.

4. Pull ﬂoat protection cover on both sides apart and remove forward

5. Undo 4 screws of the cable duct cover and remove cable duct cover.

6. Loosen some turns the counter nut of the level switch /safety switch and remove level switch/ safety switch.

7. Disconnect the cable of the level switch/safety switch.

8. Connect the new cable of the level switch/safety switch.

9. Insert the new level switch/safety switch in the corresponding position into the ﬂoat mounting support and ﬁx it with the counter nut. Caution! Make sure the plastic disk of the level switch is placed below the ridge of the support.

10. Assemble unit in reverse order of steps 1 to 5 and put it into in operation.

level switch

safety switch

disconnect

Required components

Level switch PH27/PH27A (Art.-No.: 2533040) Safety switch PH27 (Art.-No.: 2533042) Safety switch PH27A (Art.-No.: 2533046)

Replacement

1. Set the PH27/PH27A out of operation and disconnect it from the mains (unplug mains cable). On units PH27A additionally close the water supply and, if necessary, disconnect the supply line from the connection of the unit.

2. Remove water carrier/blanking cover.

6. Insert the new level switch/safety switch in the corresponding position into the ﬂoat mounting support and ﬁx it with the counter nut.

level switch

safety switch

4.1.2 Replacing the level switch/safety switch on the PH27/PH27A

X10

level switch

X13

safety switch

4. Disconnect the cable of the level switch/safety switch on the control board. Open/remove all cable fastener and cable straps.

5. Loosen some turns the counter nut of the level switch /safety switch and remove level switch/ safety switch with the cable.

8. Connect cable to terminal X10 (level switch) or terminal X13 (safety switch) on the control

board.

9. Assemble the unit in reverse order of steps 1 to 3 and put it into in operation.

X10

level switch

X13

safety switch

7. Lead the connecting cable in a loop upward into the electronics compartment. Fasten the new cable similar to the old one with the cable fastener and the cable straps (loop) to the appropriate places.

4.1.3 Replacing the level switch/safety switch on the PH28/PH28A

Required components

Level switch PH28/PH28A (Art.-No.: 2571368, for units produced after March 1, 2013) Level switch PH28/PH28A (Art.-No.: 2571369, for units produced before March 1, 2013) Safety switch PH28 (Art.-No.: 2560897) Safety switch PH28A (Art.-No.: 2560924)

Replacement

1. Set the PH28/PH28A out of operation and disconnect it from the mains (unplug mains cable).

On units PH28A additionally close the water supply and, if necessary, disconnect the supply line from the connection of the unit.

2. Remove water carrier/blanking cover.

3. Remove the three air outlet grills. Then, undo the two Phillips screws of the cover of the electronic

compartment and carefully ﬂap the cover upwards. Attention! The electronic components on the control board are very susceptible to electrostatic discharges. For the protection of these components, measures must be taken for all work on the control board to prevent damage caused by electrostatic discharge (ESD–protection).

X10

level switch

X13

safety switch

4. Disconnect the cable of the level switch/safety switch on the control board. Open/remove all cable fastener and cable straps.

5. Undo the 4 screws of the cable duct cover on the left and/or on the right side of the unit, then remove cable duct cover(s).

level switch

safety switch

cable duct covers

6. Loosen some turns the counter nut of the level switch /safety switch and remove level switch/ safety switch with the cable.

7. Insert the new level switch/safety switch in the corresponding position into the ﬂoat mounting support and ﬁx it with the counter nut.

8. Lead the connecting cable in the appropriate cable duct upward into the electronics compartment. Fasten the new cable similar to the old one with the cable fastener and the cable straps (loop) to the appropriate places.

9. Connect the corresponding cable to terminal X10 (level switch) or terminal X13 (safety switch) on the control board.

10. Fix cable duct cover(s) with the 4 screws to the unit.

11. Assemble the unit in reverse order of steps 1 to 3 and put it into in operation.

X10

level switch

X13

safety switch

4.2 Replacing silver ionization rods

Silicone-free grease (e.g. Berulub FB34, Art.-No. 1119654)

Scope of delivery silver ionization rods (Art.-No.: 1115356)

2 pcs. silver ionization rods made of silver

4.2.1 Replacing silver ionization rods on the PH15/PH15A

1. Set unit out of operation and disconnect it from the mains (unplug mains cable). On units PH15A additionally close the water supply and disconnect the supply line from the connection of the unit.

2. Remove water carrier/blanking cover.

3. Press the locking mechanism of the unit housing on both sides inward, then lift the housing carefully upward from the mobile base.

4. Pull ﬂoat protection cover on both sides apart and remove protection cover forward.

5. Undo both nuts on the silver ionization rod holder, then remove holder.

6. Unscrew threaded rod “C” so far that the used ionization rod “A” can be pulled out.

7. Clean bore.

8. Apply some silicone-free grease (e.g. Berulub FB34, Article-No. 1119654) around the new ionization rod as shown in the illustration. Note: When inserting the rod the grease seals the bore. This prevents water from penetrating into the bore which could lead to that in place of the ionisation rod the threaded rod will be galvanically corroded.

9. Carefully insert the ionization rod into the bore until it comes to a stop. Note: Make sure the contact point “D” is free of grease, otherwise a correct electrical conduction and thus the correct function are not ensured.

10. Screw in the threaded rod “C” and moderately tighten it.

11. Attach ionization rod holder in the correct position to the support and ﬁx it with the fastening nut. Then, ﬁx lug of the connecting cable to the ionization rod holder with the washer and the counter nut.

12. Assemble the unit in reverse order of steps 1 to 4 and put it into in operation.

4.2.2 Replacing silver ionization rods on the PH27/PH27A

1. Set unit out of operation and disconnect it from the mains (unplug mains cable). On units PH27A additionally close the water supply and, if necessary, disconnect the supply line from the connection of the unit.

2. Remove water carrier/blanking cover.

3. Undo both nuts on the silver ionization rod holder, then remove holder.

4. Unscrew threaded rod “C” so far that the used ionization rod “A” can be pulled out.

5. Clean bore.

6. Apply some silicone-free grease (e.g. Berulub FB34, Article-No. 1119654) around the new ionization rod as shown in the illustration. Note: When inserting the rod the grease seals the bore. This prevents water from penetrating into the bore which could lead to that in place of the ionisation rod the threaded rod will be galvanically corroded.

7. Carefully insert the ionization rod into the bore until it comes to a stop. Note: Make sure the contact point “D” is free of grease, otherwise a correct electrical conduction and thus the correct function are not ensured.

8. Screw in the threaded rod “C” and moderately tighten it.

9. Attach ionization rod holder in the correct position to the support and ﬁx it with the fastening nut. Then, ﬁx lug of the connecting cable to the ionization rod holder with the washer and the counter nut.

10. Assemble the unit in reverse order of steps 1 to 2 and put it into in operation.

4.2.3 Replacing silver ionization rods on the PH28/PH28A

1. Set unit out of operation and disconnect it from the mains (unplug mains cable). On units PH28A additionally close the water supply and, if necessary, disconnect the supply line from the connection of the unit.

2. Remove water carrier/blanking cover.

3. Remove the black protective caps from both silver ionization rod holders.

4. Undo both nuts on the silver ionization rod holder, then remove holder.

5. Unscrew threaded rod “C” so far that the used ionization rod “A” can be pulled out.

6. Clean bore.

7. Apply some silicone-free grease (e.g. Berulub FB34, Article-No. 1119654) around the new ionization rod as shown in the illustration. Note: When inserting the rod the grease seals the bore. This prevents water from penetrating into the bore which could lead to that in place of the ionisation rod the threaded rod will be galvanically corroded.

8. Carefully insert the ionization rod into the bore until it comes to a stop. Note: Make sure the contact point “D” is free of grease, otherwise a correct electrical conduction and thus the correct function are not ensured.

9. Screw in the threaded rod “C” and moderately tighten it.

10. Attach ionization rod holder in the correct position to the support and ﬁx it with the fastening nut. Then, ﬁx lug of the connecting cable to the ionization rod holder with the washer and the counter nut.

11. Assemble the unit in reverse order of steps 1 to 3 and put it into in operation.

Scope of delivery control board

Control board PH15/PH15A (Art.-No.: 2525304) Control board PH27/PH27A (Art.-No.: 2532888) Control board PH28/PH28A (Art.-No.: 2560896)

1. Set unit out of operation and disconnect it from the mains (unplug mains cable).

2. PH15/PH15A and PH27/PH27A: Remove air inlet lattice (PH15/PH15A) / air outlet lattice (PH27/ PH27A). Then, undo the 4 screws (Torx 15) of the cover of the electronic compartment and carefully ﬂap the cover to the side.

PH28/PH28A: Remove the three air outlet grills. Then, undo the two Phillips screws of the cover of the electronic compartment and carefully ﬂap the cover upwards.

Attention! The electronic components on the control board are very susceptible to electrostatic discharges. For the protection of these components, measures must be taken for all work on the control board to prevent damage caused by electrostatic discharge (ESD–protection).

4.3 Replacing the control board

6. Reconnect all cables (see wiring diagram in the appendix).

7. PH15/PH15A and PH27/PH27A: close cover of the electronic compartment and ﬁx it with the 4 screws (Torx 15). Then, insert air inlet lattice (PH15/PH15A) / air outlet lattice (PH27/PH27A) .

8. Put unit into operation and reconﬁgure the unit.

3. Disconnect all cables.

4. Carefully pull off control board from the ﬁxing pins, then remove the control board.

5. Place new control board in the correct position on the ﬁxing pins, then carefully push the control board down until it comes to a stop.

5 Fault elimination

Display Description

Radio sensor K1

ESC Install? OK

Cause: If a new battery is inserted into the radio humidity sensor (op-

tion) and the radio channel of the radio humidity sensor does not correspond to the active channel of the PH... a beep sounds brieﬂy (if the buzzer is activated) and a new radio channel (e.g. K1) will be proposed.

Action: Press the <Enter> key if you want to conﬁrm the suggested

channel. The PH... switches to the new channel and returns to the standard operating display.

Press the <ESC> key if you want to reject the suggested chan-

nel. The PH... returns to the standard operating display and uses the old signal source.

Radio sensor K1

Test

Cause: If a new battery is inserted into the radio humidity sensor (op-

tion) and the radio channel of the radio humidity sensor does correspond to the active channel of the PH... a beep sounds brieﬂy (if the buzzer is activated) and the unit conﬁrms the correct channel.

Action: To reset the message and to return to the standard operating

display press the <Enter> or the <ESC> key.

5.1 Event messages

5.2 Warning messages

Display red LED Buzzer Error relay Resetting

Warning 6

Filter change

Warning message is alternating with the standard operating display.

lights ––– activated see chapter 6.5 in the

operating instructions.

Cause: Maximum lifetime of the ﬁlter set expired. Action/Remedy: Replace ﬁlter set (see chapter 6 “Maintenance” in the operating instructions), then reset

warning message.

Warning 7

No water

Warning message is displayed until the water level in the base tub is ok. again.

lights ––– activated Automatic resetting as

soon as the water level in the base tub is at normal level again.

Note: This message is displayed only on the PH15, PH27 and PH28 Cause: The water level in the base tub is too low, level switch has triggered. Action/Remedy: Check/reﬁll water tank. Check/clean level switch.

Warning 8

Battery radio

Warning message is alternating with the standard operating display.

lights beeps briefly

every 30 minutes

activated Automatic resetting af-

ter replacement of the battery.

Cause: Battery in radio humidity sensor (option) is empty. Action/Remedy: Replace battery of the radio humidity sensor (see separate instructions of radio humidity

sensor).

Display red LED Buzzer Error relay Resetting

Error 1

Cover open

Error message is displayed until the water carrier / blanking cover (PH15/PH15A, PH27A and PH28/PH28A) and/or the air intake grills (PH28/PH28A only) is/are inserted correctly and locked.

ﬂashes ––– activated Automatic resetting

as soon as the water carrier / blanking cover (PH15/PH15A, PH27A aund PH28/PH28A) and/ or the air intake grills (PH28/PH28A only) is/ are inserted correctly and locked.

Note: This message is not displayed on the PH27. Cause: Water carrier / blanking cover (PH15/PH15A, PH27A and PH28/PH28A) and/or the air intake

grills (PH28/PH28A only) not inserted and locked.

Action/Remedy: Correctly insert water carrier / blanking cover and ﬂap down the handle (PH15/PH15A, PH27A

und PH28/PH28A) and/or correctly insert the air intake grills (PH28/PH28A only).

Error 2

Max Niveau

Error message is displayed until reset.

ﬂashes buzzes loudly

(can not be switched off)

activated Switch unit off, then on

again.

Cause: Maximum water level in the base tub exceeded. Safety switch has triggered. PH15/PH27/PH28: water tank not tight (tank cap not tight and/or level regulating valve in the

tank cap blocked or defective). PH15A/PH27A/PH28A: inlet valve defective. Action/Remedy: PH15/PH27/PH28: Remove the tank immediately. Check/clean ﬁller neck, tank cap and level

regulating valve in tank cap (replace tank cap if necessary), then close tank cap correctly. PH15A/PH27A/PH28A: check/replace inlet valve.

Error 3

Filltime

Error message is displayed until reset.

ﬂashes buzzes activated Switch unit off, then on

again.

Note: This message is displayed only on the PH15A, PH27A and PH28A Cause: Shut-off valve in the water supply line closed. Internal water ﬁlter (near to the inlet valve)

blocked. Inlet valve defective. Action/Remedy: open shut-off valve in the water supply line. Clean water ﬁlter. Check/replace inlet valve.

Error 4

No signal

Error message is alternating with the standard operating display.

ﬂashes beeps brieﬂy

every 6 minutes

activated Automatic resetting

as soon as the unit receives a signal from the radio humidity sensor.

Cause: The PH... does not receive any signal from the radio humidity sensor (option). Battery of the

radio humidity sensor soon empty or radio humidity sensor defective. Radio humidity sensor

installed outside the signal range of 25 m. Note: As long as the unit does not receive any signal from the radio humidity sensor it

switches to the internal humidistat. Action/Remedy: Replace the battery of the radio humidity sensor. Check/replace radio humidity sensor. Install

radio humidity sensor inside the signal range.

5.3 Error messages

5.4 What, if...?

The following table lists symptoms of malfunction that may occur in daily operation of the Defensor PH... units, together with possible causes and suggested remedies.

Symptom Cause Remedy

Unit does not work, LC display remains dark

Unit is not connected to the mains.

Connect unit to the mains.

Unit fuse blown. Replace unit fuse

Unit does not humidify. Ambient air humidity is higher

than selected reference value.

No remedy required, change reference humidity value if necessary.

Float of the level switch is stuck. Clean level switch and care-

fully remove any lime scale if necessary.

Level switch is defective. Therefore no error message is displayed even though the water level in the base tub is too low.

Replace the level switch.

Room air does not reach the set reference humidity value.

Evaporator mat not installed. Install evaporator mat.

Room temperature too high. Reduce room temperature to

20-22°C.

Unit very dirty. Perform maintenance (see

chapter 6 in the operating instructions)

Doors or windows are open. Close doors and windows.

Prolonged ventilation of the room. Therefore continuous replacement of the humidiﬁed room air by dry outdoor air.

Ventilate room only a short time!

Room to large. Make further clariﬁcations.

Display red LED Buzzer Error relay Resetting

Error 5

Leakage sensor

Error message is displayed until reset.

ﬂashes buzzes loudly

(can not be switched off)

activated Switch unit off, then on

again.

Cause: PH15/PH27: Water tank not tight (tank cap not tight and/or level regulating valve in the tank

cap blocked or defective). Unit is not placed on a horizontal surface. Safety switch defec-

tive. PH15A/PH27A: Inlet valve defective. Level switch defective. Safety switch defective. Action/Remedy: PH15/PH27: Check/clean ﬁller neck, tank cap and level regulating valve in tank cap (replace

tank cap if necessary) , then close tank cap correctly. Place unit on a horizontal surface.

Check/replace safety switch. PH15A/PH27A: Check/replace inlet valve. Check/replace level switch. Check/replace safety

switch.

Symptom Cause Remedy

Actual humidity much higher than the reference value.

The actual humidity is higher than the set reference air humidity.

Let unit running as air puriﬁer.

Fan does not run Humidiﬁcation mode “Humidi-

ﬁcation” selected. Ambient humidity is higher than selected reference value.

None. Unit is working properly.

Unit is in program mode. The currently active program sets the fan step to “0”.

None. Unit is working properly.

Fan defective. Replace fan.

Base tub and rotary humidiﬁcation drum/centrifuge have heavy slime accumulation.

Silver coating on the water ionisation electrodes is worn.

Have a service technician of your Defensor supplier replace the water ionisation electrodes.

Displayed actual humidity is 99 %

Integrated humidity sensor not correctly connected

Check the connections of the sensor cable at the humidity sensor and on the control board.

Humidity sensor defective Replace humidity sensor.

X14

X15

X17

+5V

4 3 2 1

B1 B2

X21

7 1

X10

2 1

+24V

X12

2 1

X6 X5

1 2 1 2 3

+24V

X13

5 4 3 2 1

+24V

L1 L N PE

1 2 3

X16

1110

St. 1 (ws) St. 2 (rt) St. 3 (gu)

C2 (bn) C1 (ge)

St. 4 (sw)

N (bl)

PE (gn/ge)

1 2 3

5 6

7 8 9

ESC Enter I / 0

1.25 AT

C (bn) P (bl) N (sw)

PE (gn/ge)

L1 L N PE

L N 230 VAC PE

L1 L N PE

L N 100 VAC PE

110V 110V

230V

230V/410mA

230V/240mA

N N

Display

Keypad&LED

Steuerprint PH15

300000382.000

Index XX

Art.Nr. XXXXXXX

6 Appendix

6.1 Wiring diagram PH15/PH15A

B1, B2 Ionisation electrodes B3 Level switch F1 Fuse control board (1.25 A, slow acting) M1 4-step fan M2 Centrifuge motor P1 Potentiometer display contrast S1 Safety switch S2 Leakage sensor (option) S3 Micro switch carriage/blanking cover

U1 Internal humidity sensor U2 Radio receiver (option) U3 External radio humidity sensor (option) T1 Transformer control board T2 Transformer 100 V version X5 Error contact, max. 250 VAC X9 Programming interface Y1 Inlet valve (PH15A only) Y2 Safety inlet valve (PH15A only)

100 V version only

X14

X15

X17

+5V

4 3 2 1

B1 B2

7 1

X10

2 1

+24V

X12

2 1

X6 X5

1 2 1 2 3

+24V

X13

5 4 3 2 1

+24V

L1 L N PE

1 2 3

X16

1110

St. 1 (ws) St. 2 (rt) St. 3 (gu)

C2 (bn) C1 (ge)

St. 4 (sw)

N (bl)

PE (gn/ge)

1 2 3

5 6

7 8 9

ESC Enter I / 0

1.25 AT

P (bl) N (sw)

PE (gn/ge)

L1 L N PE

L N 230 VAC PE

L1 L N PE

L N 100 VAC PE

110V 110V

230V

230V/410mA

230V/240mA

N N

Keypad&LED

Steuerprint PH27

300000642.000

Index XX

Art.Nr. XXXXXXX

Display

X21

6.2 Wiring diagram PH27/PH27A

B1/B2 Ionisation electrodes B3 Level switch F1 Fuse control board (1.25 A, slow acting) M1 4-step fan M2 Drum motor P1 Potentiometer display contrast S1 Safety switch S2 Leakage sensor (option) S3 Micro switch blanking cover

(PH27A only)

100 V version only

6.3 Wiring diagram PH28/PH28A

B1/B2 Ionisation electrodes B3 Level switch F1 Fuse control board (1.25 A, slow acting) M1 4-step fan M2 Drum motor P1 Potentiometer display contrast S1 Safety switch S3 Micro switch carriage/blanking cover S4 Micro switch air intake grill 1 S5 Micro switch air intake grill 2

U1 Internal humidity sensor U2 Radio receiver (option) U3 External radio humidity sensor (option) T1 Transformer control board T2 Transformer fan X5 Error contact, max. 250 VAC X9 Programming interface Y1 Inlet valve (PH28A only) Y2 Inlet safety valve (PH28A only)

PH28

X14

X15

X17

+5V

4 3 2 1

B1 B2

7 1

X10

2 1

+24V

X12

2 1

X6 X5

1 2 1 2 3

+24V

X13

5 4 3 2 1

+24V

L1 L N PE

1 2 3

X16

1110

St. 1 (ws) St. 2 (rt) St. 3 (gu)

C2 (bn)

St. 4 (sw)

N (bl)

PE (gn/ge)

1 2 3

5 6

7 8 9

1.25 AT

C1 (ge)

P (bl) N (sw)

PE (gn/ge)

L1 L1 L N PE

L N

115 VAC

122 V 146 V 172 V 230 V

230 VAC

Steuerprint PH27

300000642.000

Index XX

Art.Nr. XXXXXXX

X21

X22

X23

Keypad&LED

Display

Notes

Technical modiﬁcations reserved

CONSULTING, SALES AND SERVICE:

Manufacturer: Condair Ltd. Member of the Walter Meier Group Talstrasse 35-37, 8808 Pfäﬃkon, Switzerland Ph. +41 55 416 61 11, Fax +41 55 416 62 62 info@condair.com, www.condair.com

Reg.No. 40002-2

Defensor H15A, Defensor PH28, Defensor PH15, Defensor PH27, Defensor PH28A Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual