Rational Oven CM101E Service Manual

Training Manual

SCC Line

SelfCooking Center - Combi Master

Edition 09-2007

Training Manual

SCC Line

Edition 09 - 2007

General hints:

Isolate the appliance from mains supply before opening the appliance

When working with chemicals, i.e. aggressive cleaning materials

always wear protective clothing, goggles and gloves!

After maintenance / repair the appliance must be checked for electric

safety in accordance with your national, state and local requirements!

Whenever working on any gas component like:

Gas valve, gas blower and / or changing connected type of gas a detailed

 ue gas analysis MUST be done using adequate CO and CO2

measuring equipment! This shall ONLY be done by trained technicians!

Always check appliance for possible gas leakages!

Part1: CM Technology

CM Technique from 04 - 2004 4
Water level control Steam Generator 6
RATIONAL SC Automatic 7
Steam Control CM 8
Additionaly functions CM from 04 - 2004 10
CM PCB (42.00.004) 12
Motor for CM 40.00.274 13
CM - Sequence of events 14
Service level CM from 04 - 2004 19

Service level: dP -- Diagnostic Program 20
Service Level: ER -- Error code history 21
Failure Codes CM „ER“ 22
Service Level: rt -- Running Time 23
Service level: SE -- Basic settings 24
Service level: SE -- Function test 26

CM Gas from 04 - 2004 28

Identification of the different gas burners / Gas blowers: 29
Sequence of events of Burner and Ignition control 30
Changing installation altitude: CM gas 32
Checking of dyn. input gas flow pressure 33
Flue gas analysis 34
Changing Gas blower speed 37
Burner adjustment 38

Part2: SCC Technology

SCC Control Panel 39
Display up to Software version SCC 01-07-12 40
Display since Software version SCC 02-01-01 42
Display Programming / CleanJet SCC 02-01-01 44
SCC Electric from 04-2004 46
SCC Operator pcb (42.00.002) 48
I/O PCB SCC (40.00.049) 49
Motor for CM 40.00.274 50
Humidity control SCC 51
Service level SCC 60

SCC Diagnostic Mode 61
SCC Running Times 65
Basic Settings 69
RESET 73

Function test 74
Download of unit service data 78
HACCP 82
Service messages 84
Calibration SCC 88
Control Drain Valve 54.00.357 90

SCC Gas

SCC Gas from 04-2004 92
Identification of the different gas burners / Gas blowers: 94
Sequence of events of Burner and ignition control 95
Gas conversion : SCC Gas 96
Adjustment of installation altitude above sea level 97
Flue gas analysis: SCC gas 98
Burner adjustment 100
Changing gas blower speed SCC Gas 101

Part3: Common information

Flash SCC Software 102
Software update CM units 104
User instruction electrical descaler pump 108
RATIONAL Commissioning SCC-CM 110
Preventative maintenance SCC / CM 114
Water info 118

Part4: Fault list SCC - CM 120

Part5: Circuit diagram (Training version 3NAC 400V 138

SCC Service reference 192

S

C

M

CM Technique from 04 - 2004

Steam

Hot Air

Combi Steam

Low Temperature Steam

Finishing

Cool Down

Cabinet temperature display

Cabinet temperature setting

Timer

Core temperature

Time - Core temperature display

Time - Core temperature setting

-4-

S

S2

CM Technique from 04 - 2004

B5

F3

M1

M4

B1

F4

C

M

B3

S3

B2

Y1

Y2

B1 Thermocouple cabinet
B2 Thermocouple quenching / Steam control
B3 Thermocouple core temperature
B5 Thermocouple steam generator (preheating, 180°C (356°F) max)

F3 Safety temperature limiter steam generator 160°C
F4 Safety temperature limiter cabinet 360°C

Y1 Solenoid valve  lling
Y2 Solenoid valve quenching

M1 Fan motor (without jumper)
M4 Pump SC-Automatic

S2 Level electrode

CM 201/202 only:
M2 Fan motor top (with jumper)

-5-

S

C

M

Water level control Steam Generator

S2

B5

F3

S2

M4

B2

Y1

Center S2 ==> Ground: 2 - 6V AC: water level too low

steam heating must switch OFF
solenoid valve lling Y1 ON

Y2

V

AC

Center S2 ==> Ground: 0V AC: water level reached

steam heating can switch ON
solenoid valve lling Y1 switched OFF

Every 2 minutes steam elements will switch off for water level control

Notes:

X12

-6-

S

RATIONAL SC Automatic

During the production of steam, the concentration of minerals inside the steam generator
will increase over time. These minerals settle on the heating elements and heat exchanger
as well as the interior steam generator walls.

In order to reduce this effect the steam generator will be pumped off and  ushed regularly
depending on the duration of steam production. This process needs approximately 45 sec­onds.
After emptying the steam generator it will be  lled automatically with fresh water.

There are 4 conditions to start this SC Automatic:

1. Heating time of the steam generator must exceed 60 min. (CM - 45 min.)*
and

2. the temperature of the thermocouple inside steam generator (B5) must be below 65°C (149°F)
and

3. the temperature of the thermocouple inside interior cabinet (B1) must be below 70°C (158°F)
and

C

M

4. the unit is switched ON.

* - can be adjusted from 20-120min

In case the unit is used permanently the above mentioned temperature conditions
can not be met.

In this case the following 2 conditions apply:

1. The heating time of the steam generator reaches the twice the set duration*,
i.e. 120 min. (CM - 90 min.) and

2. the unit door is open for longer than 30 seconds

After completion of the SC-Automatic the timer accumulating the steam heating time is re-set to zero.

-7-

S

Y1

Y2

B2

B1

C

M

Steam Control CM

Intelligent steam control via quenching sensor

1. Filling of interior cabinet based on time and
temperature control of B2 quenching sensor

2. After steam saturation inside cabinet steam
will also  ll quenching chamber

°C / °F

70°C
(158°F)

Notes:

B1 - 100°C(212°F)

B2 - 1

B2 - 2

t (sec)

3. Depending on the frequency of temperature
raise of the quenching sensor B2 the
duration of the next steam supply is
calculated.

B2-1: B2 temperature with partial load
B2-2: B2 temperature with full load

4. The amount of steam inside the cabinet is
directly depending on the temperature

variation of quenching sensor B2.

-8-

S

Notes:

C

M

-9-

S

Additionaly functions CM from 04 - 2004

C

M

Below are listed the additionaly functions for the user / operator:

1. Cleaning program

1) Cool down cabinet below 60°C

2) Spray inside cabinet with Rational cleaner

3) Close cabinet door

4) Select „Cool Down

5) Press core temperature key for 10 sec.

6) „CLEn“ will show in cabinet temperature display

7) Press timer key 1x; Cleaning program starts automatically (open cabinet door
and rinse interior cabinet after 40 min.) Close door again. Since Software versi­on C1-06-05 a 10 min step hot air will follow to dry the interior cabinet.)

8) After end of program, leave cabinet door open over night.

2. Empty steam generator

This should be done after each installation to verify free drain connection and prior to disconnection
the unit for storage.

1) Open cabinet door

2) Select „Cool Down“

3) Press core temperature key for 10 sec.

4) „CLEn“ will be shown in cabinet temperature display

5) Select „SC“ with temperature dial

6) Close water tap

7) Press timer key 1x and remain on „Cool Down“ position for about 45 sec.

3. Descaling program

1) Open cabinet door

2) Select „Cool Down“

3) Press core temperature key for 10 sec.

4) „CLEn“ will be shown in cabinet temperature display

5) Select „CALC“ with temperature dial

6) Press timer key 1x and follow procedure of the decalci cation instruction. (See
user manual CM).

-10-

Notes:

Additionaly functions CM from 04 - 2004

S

C

M

4. Changing temperature display from °C to °F

1) Select any mode

2) Press timer and core temperature key simultaneously for 10 sec. until Display
changes from °C to °F or vice versa

3) Release both keys

-11-

S

F6.1

2 AT

X16

F6

C

CM PCB (42.00.004)

M

CM PCB (42.00.047) from 02-2006 (without transformer)

42.00.004

X2 B3 Core temperature

X3 B1 Interior cabinet

X4 B2 Quenching / Steam control

X6 B5 Steam generator

X7 ON - OFF switch

X8 Buzzer

X12 Level electrode

X 16 power supply from transformer (42.00.047)

X18 SC - pump

X19 Solenoid valves

X20 Energy optimising / Sicotronic

X23 Vent hood (signal door open / closed)

Transformer

42.00.047

X16

2 AT

F6.1

0,1 AT

F1 F2

1

1

2 AT

1

2 AT

F6

1

X7

X19

X20

X7

X19

X20

X24 SSR

X26 SSR pulsing (USA version only)

X27 Door contact switch

X30 Serial interface (RS232)

X31 BUS interface

X32 Timer / Core Temp. Potentiometer

X50 external EEPROM

X63 Not used

Counting sequence

1

X63

1

2

on

off

3

4

Temperature

potentiometer

1

X30

RS 232

X50

X2

1

X18

X23

1

X31

RS 485

X8

X12

1

X26

X27

1

X3X4X6

X32X24

Since February 2006 PCB 42.00.004 is replaced by 42.00.047.
(Conversion kit: 87.00.139, pls. see Technical info 04-06)

The transformer on the new PCB 42.00.047 is no more existing and replaced by external transformer

40.00.227

-12-

Motor for CM 40.00.274

S

C

M

LED

Jumper

Jumper 40.01.581 is used on  oor model 201 and 202 for top position motor only!

Jumper is not used on models 61 - 102 with one motor only! (Service 34 will be shown!)

LED code fan motor SCC and CM from 04/2004

Reason

1x Motor doesn’t start, no changing
signal from hallsensor

2x Voltage too low on motor pcb

Check for motor blockage or change motor.

Check supply voltage or
change motor.

3x Voltage too high on motor pcb

4x rpm measurement defective

5x Motor pcb temperature >105°C

6x Supply voltage <80V

7x Motor pcb defective

8x Motor pcb defective
Remedy

Check supply voltage or
change motor.

Change motor.

Check cooling system (cooling fan, air intake
filter), otherwise change motor

Check power supply
(F1-F2)

Change motor.

Change motor.

-13-

S

CM - Sequence of events

C

M

Mode: Steam 100°C (212°F)

Temp. preset, not adjustable

S2

Y2

Y1

B1

F4

B3

B5

F3

M1

M4

S3

B2

Function Step Responsible sensor

1. Select Steam mode

2. Select time or core temperature

3. Close cabinet door Reed switch S3

4. Check water level inside steam generator Level electrode S2 inside Steam Generatorr

5. Preheat steam generator, Thermocouple B5 inside Steam Generator
if B5 is below 85°C (185°F);

6. Timer starts after successful preheating Logic on PCB
(blinking dot in Display)

7. Steam supply up to steam saturation Quenching sensor B2
inside cabinet (Steam control)

8. Hot Air supply (only 50%) when set Cabinet sensor B1
temperature (100°C/212°F) can not be
reached in time by Steam alone

9. Quenching (set to 70°C/158°F) Quenching sensor B2

-14-

CM - Sequence of events

S

Mode: Low temperature steam

Temp. range 30-99°C (86-210°F)

S2

Y2

Y1

C

M

B1

F4

B3

B5

F3

M1

M4

S3

B2

Function Step Responsible sensor

1. Select Low temperature steam mode
Set temperature 30-99°C (86-210°F)

2. Select time or core temperature

3. Close cabinet door Reed switch S3

4. Check water level inside steam generator Level electrode S2 inside Steam Generatorr

5. Preheat steam generator, Thermocouple B5 inside Steam Generator
if B5 is below 85°C (185°F);

6. Timer starts after successful preheating Logic on PCB
(blinking dot in Display)

7. Steam supply until set temperature Cabinet sensor B1
inside cabinet is reached

8. Hot Air supply (only 50%) when set Cabinet sensor B1
temperature can not be reached in time
by Steam alone

9. Quenching (set to 70°C/158°F) Quenching sensor B2

Note: Reduction of fan motor speed
In case the actual temperature is higher than the set temperature for longer than 2 minutes,
the fan speed will be reduced automatically.

-15-

S

C

Mode: Combination

Temp. range 30-300°C (86-572°F)

M

Y2

Y1

CM - Sequence of events

S2

B5

F3

M4

B2

B1

F4

B3

M1

S3

Function Step Responsible sensor

1. Select Combi mode
Set temperature 30-300°C (86-572°F)

2. Select time or core temperature

3. Close cabinet door Reed switch S3

4. Check water level inside steam generator Level electrode S2 inside Steam Generatorr

5. Preheat steam generator, Thermocouple B5 inside Steam Generator
if B5 is below 85°C (185°F);

6. Timer starts after successful preheating Logic on PCB
(blinking dot in Display)

7. Hot Air supply until set temperature Cabinet sensor B1
inside cabinet. Hot air has priority

8. Steam supply up to steam saturation Quenching sensor B2
inside cabinet (Steam Control)

9. Quenching (set to 70°C/158°F) Quenching sensor B2

Note: Reduction of fan motor speed
In case the actual temperature in the range of 30-99°C (37-210°F) is higher than the set tempe­rature for longer than 2 minutes, the fan speed will be reduced automatically.

-16-

F

CM - Sequence of events

Mode: Finishing

Temp. range 30-300°C (86-572°F)

S2

B2

Y2

Y1

S

C

M

B1

F4

B3

B5

F3

M1

M4

S3

Function Step Responsible sensor

1. Select Finishing mode
Recommended temperature 100-140°C (212-284°F)

2. Select time or core temperature

3. Close cabinet door Reed switch S3

4. Check water level inside steam generator Level electrode S2 inside Steam Generatorr

5. Preheat steam generator, Thermocouple B5 inside Steam Generator
if B5 is below 85°C (185°F);

6. Timer starts after successful preheating Logic on PCB
(blinking dot in Display)

7. Hot Air supply Cabinet sensor B1
Electric units: 12 sec on - 6 sec off
Gas units: 30 sec on - 15 sec off

8. Steam supply Quenching sensor B2
Electric units: 6 sec on - 12 sec off (Steam Control)
Gas units: 15 sec on - 30 sec off

9. Quenching (set to 70°C/158°F) Quenching sensor B2

Note: Reduction of fan motor speed
In case the actual temperature in the range of 30-99°C (37-210°F) is higher than the set tempe­rature for longer than 2 minutes, the fan speed will be reduced automatically.

-17-

S

C

Mode: Hot Air

M

Temp. range 30-300°C (86-572°F)

Y2

Y1

CM - Sequence of events

S2

B5

F3

M4

B2

B1

F4

B3

M1

S3

Function Step Responsible sensor

1. Select Hot Air mode
Set temperature 30-300°C (86-572°F)

2. Select time or core temperature

3. Close cabinet door Reed switch S3

4. Hot Air supply unitl set temperature Cabinet sensor B1
is reached

8. Quenching (set to 90°C/194°F) Quenching sensor B2

Note: Reduction of fan motor speed
In case the actual temperature in the range of 30-99°C (37-210°F) is higher than the set tempe­rature for longer than 2 minutes, the fan speed will be reduced automatically.

-18-

Service level CM from 04 - 2004

F6.1

2 AT

X16

F6

S

C

on

on

1

on

1

1

234

234

234

1) Switch unit ON

2) On operator PCB set DIP switch 1 to „ON“ position

3) Select service package with timer dial:

Diagnostic Program

Error code history

Running times

Basic settings

4)

Activate with core temperature key the desired service package

5) Select with timer dial the desired step

6) Activate selected step by pressing timer key

7)

To de-activate service package set DIP switch 1 to „OFF“ position

Function Test

.

X63

off

1) Switch unit ON

2) Auf Bedienplatine DIP Schalter 3 auf „ON“ Stellen

First step of function test is displayed.

3) Select desired step of function test with timer dial

4) Activate selected step by pressing timer key

42.00.004

Transformer

42.00.047

X16

2 AT

F6.1

1

2

on

3

4

1

X30
RS 232

0,1 AT

X50

X2

1

F1 F2

X32X24

M

2 AT

X7

X19

1

X20

1

2 AT

F6

X7

X19

1

X20

1

X18

X23

1

X31

RS 485

X8

X12

1

X26

X27

1

X3X4X6

on

234

1

Notes:

5) Activate selected step with core temperature key

6)

To de-activate function test set DIP switch 3 to „OFF“ position

.

-19-

S

C

M

dP #

dP 1

Service level: dP -- Diagnostic Program

Description

Software Version

Connector

Cabinet display

Software
version: C - 1 -

Timer display

Software

Version:06.05

Comment

dP 2

dP 3

dP 4

dP 5

dP 6

dP 7

dP 8

dP 9

dP 10

dP 11

dP 12

dP 13

dP 14

dP 15

dP 16

dP 17

B1 Cabinet sensor

B2 Quenching sensor

B3 Core sensor

B5 Steam generator sensor

PCB temperature

S3 Door contact

S2 Water level steam
generator

Steam elements
0 - off; 1 - 50%; 2 - 100%

Hot Air elements
0 - off; 1 - 50%; 2 - 100%

Speed fan motor top

Speed fan motor bottom

Energy optimising
(Sicotronic)

SSR pulsing (US version)

Unit size and type

Flame Current Steam

Flame Current Hot Air top

X 3

X 4

X 2

X 6

X27:(1-2)

X12:(1-4) S2
X19:(1-3) Y1

BUS

BUS

X 20

X 26

actual value

actual value

actual valuet

actual value

actual value

S3: 1 - 0

Temp. B5

Temp. B1

Set rpm

Set rpm

61 - 202

max value

max value

max value

max value

max value

1 - 0

Y1: 1 - 0

0 - 1 - 2

0 - 1 - 2

actual rpm

actual rpm

1 - 0

1 - 0

ELE - GAS

x.x A

x.x A*

Reset by pressing
for 5 sec.

Reset by pressing
for 5 sec.

Reset by pressing
for 5 sec.

Reset by pressing
for 5 sec.

Reset by pressing
for 5 sec.

USA version only

since SW Version:

*

C1-06-05 ( ame current)
since SW Version:
C1-06-05 ( ame current)

+

+

+

+

+

x.x A*

dP 18

*
(This value must be divided by 4 to get the correct  ame current e. g. 22:4 = 5,5A.)

Flame Current Hot Air bottom

With SW Version C1-06-05 the  ame current will show as 20-24A

since SW Version:
C1-06-05 ( ame current)

Starting with SW version C1-07-01 the actual  ame current is shown .

-20-

Service Level: ER -- Error code history

S

Since software version C1-07-01 the last 10 general error messages are
shown

Er When timer key is pressed the error code will be displayed. i.e.:

Er1 3 B1 Cabinet sensor defective
Er2 14 Y1 Filling solenoid defective
Er3

---­ER10
Note: Er1 - Er10 is a consecutive counting
Number 1-24 are error codes which are generated by the pcb

Gas error GE: (gas units only!)

Since software version C1-07-01 the last 16 gas error messages are shown in addition to the
general error messages

GE11 20 No rpm signal
GE12 32 No  ame after 5 ignition sequences
GE13

--­GE25
Note: GE11 - 25 is a consecutive counting

(applies for electric and gas models)

C

M

Number 1-43 are internal error codes which are generated by the ignition box

Indication of ignition box error messages (1-32 is shown to the operator as „rES“):

1 Hot air or Steam no gas, gas valve or electrode defective
14 Hot air gas valve controll, change ignition box
19 Hot air no  ame because  ame current is too low
check burner setting,  ame current, ignition cable and plug
20 Hot air wrong or no rpm signal from gas blower
check gas blower, power supply gas blower and control harness of gas blower
22 Hot air no  ame after 5 ignition sequences
no gas, gas valve or electrode defective
24 Steam gas valve controll, change ignition box
29 Steam no  ame because  ame current is too low
check burner setting,  ame current, ignition cable and plug
30 Steam wrong or no rpm signal from gas blower
check gas blower, power supply gas blower and control harness of gas blower
32 Steam no  ame after 5 ignition sequences
no gas, gas valve or electrode defective

Possible failure in case of „E21“

33, 36 Change ignition box
35 Check frequency of main
39 Hot air Check burner setting, ignition electrode and distance,and  ame current
40 Hot air Check ignition cable
42 Steam Check burner setting, ignition electrode and distance,and  ame current
43 Steam Check ignition cable

Is shown on display „CHnG PoL“

34 Change polarity of mains

All other numbers (2-13, 15-18, 21, 23, 25-28, 31): change ignition box

-21-

S

C

M

Int. cab.

display

H2o

CHnG

Timer

display

OPEn

PoL

Failure Codes CM „ER“

Failure explanation

H2O open
Change Polarity

Description

Lack of water / open water tap
Phase / Neutral (only gas units)

Timer
display

E1
E2

E3
E4
E5
E6
E7
E8
E9

E10

E11

E12

E 12

E13
E14
E15
E16

E17
E18
E19
E20
E20
E21
E21
E21
E22

E22

E22

E23
E24

Int. cab.

display

(E -press

core temp.

key)

1 St

1 Co

2 St

2 Co

1_

2_
1xx
2xx
3xx
1xx

2xx

3xx

Part concerned

external EEPROM
Timeout of external
power optimising system
(Sicotronic)
B1 Interior cabinet sensor
B2 Quenching sensor
B3 Core sensor
B5 Sensor steam generator
Thermocouple on PCB
Poti interior cabinet
Poti timer/core temperature
External EEPROM
Mode switch

Fan motor 1 (bottom)
Fan motor 1 (bottom)
Fan motor 2 (top)
Fan motor 2 (top)
M4 SC-pump
Solenoid valve  lling Y1
PCB temperature
Steam generator

Steam generator
Interior cabinet temp.
free
Ignition box 1
Ignition box 2
Ignition box 1 Steam
Ignition box 1 Hot air
Ignition box 2 Hot air
Ignition box 1 Steam

Ignition box 1 Hot air

Ignition box 2 Hot air

free
EEPROM

Description

Not initialised
Heating blocked by the extern. energyopti­mising system for longer 2 min.

Sensor broken
Sensor broken
Sensor broken
Sensor broken
Sensor broken
Defective
Defective
Defective
After 5 sec switching on the unit, a cooking
mode couldn‘t be identi ed
St = Status (probably Motor defect)
Co = Communication,(Bus failure)
St = Status (probably Motor defect)
Co = Communication,(Bus failure)
Mal function
Mal function
above 85°C (185°F)
Temperature B5 above
180°C (356°F)
Temperature B5 below -5°C (23°F)
Temperature B1 above 340°C (644°F)

Ignition box does not reply, Bus failure
Ignition box does not reply, Bus failure
Ignition box defective (change box)
Ignition box defective (change box)
Ignition box defective (change box)
Testing of ignition and monitoring
necessary
Testing of ignition and monitoring
necessary
Testing of ignition and monitoring
necessary

Actual data structure of the EEPROM does
not match with the software; flash pcb first

-22-

Service Level: rt -- Running Time

S

C

rt #

rt 1

rt 2

rt 3

rt 4

rt 5

rt 6

rt 7

rt 8

rt 9

Description

Total S3 door openings

Total time Y1 valve  lling

Total time Y2 valve quenching

Total time M4 SC-pump

Total time steam heating time

Total time hot air heating time

Total time steam mode

Total time hot air mode

Total time combination mode

Timer display: 1-999
Temp. display: >1000

number

min

min

min

hrs

hrs

hrs

hrs

hrs

Comment

Reset by pressing
for 5 sec.
Reset by pressing
for 5 sec.
Reset by pressing
for 5 sec.
Reset by pressing
for 5 sec.
Reset by pressing
for 5 sec.
Reset by pressing
for 5 sec.
Can not be reset

Can not be reset

Can not be reset

M

+

+

+

+

+

+

rt 10

rt 11

rt 12

rt 13

Notes:

Total time vario steam mode

Total time  nishing mode

Total time cleaning program

Total running time unit

hrs

hrs

hrs

hrs

Can not be reset

Can not be reset

Can not be reset

Can not be reset

-23-

S

C

M

+

Service level: SE -- Basic settings

Select desired step with timer dial
(fan motor and heating elements are automatically OFF)

Activate selected step with timer key

Steam heating time since last SC-Automatic

Press time and core key simultaneously for 5 seconds to set steam heating time
(SE2) to preset steam heating time plus 1 minute (default 45+1min) => test function
for SC-Automatic

Preset Steam heating time until SC-Automatic (default 45min)

+

+

+

+

Press time key and adjust preset steam heating time from 20 - 120 minutes with timer
dial

Flushing time SC-Automatik (default 45 seconds)

Press time key and adjust  ushing time of SC-automatik from 30 - 90 seconds with
timer dial

Operation steam generator pump (oFF - continous or on - pulsing)

Press time key and select „on“ or „oFF“ with timer dial

Show mode (on - oFF) SHO

Press time key and select „on“ or „oFF“ with timer dial

Setting new gas type (G20, G25, G30, G31, 13A)

Press time key, keep it pressed and select new gas type with timer dial

+

+

Con rm new gas type by pressing core temperature key once.
Corresponding gasblower speed is automatically adjusted
NOTE: After changing gas type a waste gas analysis must be carried out in the func­tion test.

Presetting of CO2 screw in mm on gas valve after gas type modi cation / changing
gas valve

Press time key, keep it pressed and select with timer dial “ST“ for steam, “HA1“ for
hot air top or “HA2“ for hot air bottom (only 201/202) with timer dial;
Average lenght in mm of CO

screw on gas valve is shown on timer display

2

-24-

Service level: SE -- Basic settings

Adjustment of installation altitude above sea level (since SW C1-06-05)-500m ­4500m

S

C

M

+

+

+

Press time key, keep it pressed and select installaton altitude in 500m steps by timer
dial. Con rm altitude setting by pressing simultaneously core temperature key once

Adjusting speed of blower motor steam (+/ -10%)
(After blower speed adjustment the original rpm is shown in the temp. display, the
changed rpm is shown in the time display)

Press time key, keep it pressed and adjust displayed rpm with timer dial
SE9 = MIN rpm; SE10 = Start rpm; SE11 = MAX rpm
NOTE: After changing speed of blower motor a waste gas analysis MUST be carried
out in the function test.

Adjusting speed of blower motor hot air top (+/ -10%)
(After blower speed adjustment the original rpm is shown in the temp. display, the
changed rpm is shown in the time display)

Press time key, keep it pressed and adjust displayed rpm with timer dial
SE12 = MIN rpm; SE13 = Start rpm; SE14 = MAX rpm
NOTE: After changing speed of blower motor a waste gas analysis MUST be carried
out in the function test.

+

Notes:

Adjusting speed of blower motor hot air bottom (+/ -10%)
(After blower speed adjustment the original rpm is shown in the temp. display, the
changed rpm is shown in the time display)

Press time key, keep it pressed and adjust displayed rpm with timer dial
SE15 = MIN rpm; SE16 = Start rpm; SE17 = MAX rpm
NOTE: After changing speed of blower motor a waste gas analysis MUST be carried
out in the function test.

-25-

S

Service level: SE -- Function test

C

NOTE: In Function test components are NOT protected against overload!

M

Function Connection Cabinet Time Comment
I/O PCB Display Display

F1 Steam 50%, X24:(1-2) actual temp.B5 1 / 0 Gas: no function
Electric unit steam generator

F2 Steam 100% X24:(1-2)+(5-6 actual temp.B5 1 / 0 Gas: no function
Electric unit steam generator

F3 Hot Air 50% X24:(7-8) actual temp. B1 1 / 0 Gas: no function
Electric unit cabinet

F4 Hot Air 100% X24:(7-8)+(3-4) actual temp. B1 1 / 0 Gas: no function
Electric unit cabinet

F5 Steam BUS actual temp.B5 1 / 0 Electric: no function
Gas unit steam generator

F6 Hot air top BUS actual temp.B1 1 / 0 Electric: no function
Gas unit cabinet

F/ Hot air bottom BUS actual temp.B1 1 / 0 Electric: no function
Gas unit cabinet

F8 Bottom Motor BUS Set rpm Act. rpm
MAX speed

F9 Bottom Motor BUS Set rpm Act. rpm
MIN speed

F10 Top Motor BUS Set rpm Act. rpm
MAX speed

F11 Top Motor BUS Set rpm Act. rpm
MIN speed

F12 Solenoid valve X19:(2-4) actual temp. Y2, 1 / 0
quenching B2 quenching

F13 Solenoid valve X19:(2-4) Level electrode Y1, 1 / 0
 lling S2, 1 / 0

F14 Steam generator X18:(1-2) M4 Level electrode M4,1 / 0
pump X12:(1-4) S2 S2, 1 / 0

F15 Buzzer 1 / 0

F16 All Displays / LED

F17 Relais Vent hood X 23: (1-2-3) 1 / 0
(door open/close)

-26-

Function test

NOTE: In Function test components are NOT protected against overload!

Function Connection Cabinet Time Comment
I/O PCB Display Display

F19 Steam blower motor BUS Actual blower Set CO
MIN rpm rpm value value only

F20 Steam blower motor BUS Actual blower
START rpm rpm

F21 Steam blower motor BUS Actual blower Set CO
MAX rpm rpm value with C02 screw

on gas valve

F22 Hot Air blower motor BUS Actual blower Set CO
TOP, MIN rpm rpm value value value only

F23 Hot Air blower motor BUS Actual blower
TOP, START rpm rpm

F24 Hot Air blower motor BUS Actual blower Set CO
TOP, MAX rpm rpm value with C02 screw

on gas valve

F25 Hot Air blower motor BUS Actual blower Set CO
TOP, MIN rpm rpm value value value only

F26 Hot Air blower motor BUS Actual blower
TOP, START rpm rpm

F27 Hot Air blower motor BUS Actual blower Set CO
TOP, MAX rpm rpm value with C02 screw

on gas valve

Check CO2

2

Adjust CO2 value

2

Check CO2

2

Adjust CO2 value

2

Check CO2

2

Adjust CO2 value

2

S

C

M

Notes:

-27-

S

C

M

S2

B11

CM Gas from 04 - 2004

B5

F3

M4

Y12

M8

M9

Y11

A5

M1

B12

B1

F4

B3

B2

Y1

Y2

A5 Ignition module (Steam and Hot Air) (without jumper)
B1 Thermocouple interior cabinet
B2 Thermocouple quenching / Steam control
B3 Thermocouple core temperature
B5 Thermocouple steam generator
B11 Ignition/monitoring electrode steam
B12 Ignition/monitoring electrode hot air
F3 Safety thermostat steam generator 135°C
F4 Safety thermostat interior cabinet 360°C
M1 Fan motor
M4 SC-pump
M8 Gas blower motor hot air
M9 Gas blower motor steam
Y1 Solenoid valve  lling
Y2 Solenoid valve quenching
Y11 Gas valve steam
Y12 Gas valve hot air
S2 Level electrode
S3 Door reed switch

S3

Only oor units 201 - 202

A6 Ignition module hot air bottom (with jumper)
M2 Fan motor top (with jumper)
M10 Gas blower motor hot air bottom
Y13 Gas valve hot air bottom
B13 Ignition/monitoring electrode hot air bottom

-28-

S

Identification of the different gas burners / Gas blowers:

CM 61 - 62 - 101 - 102 CM 201 - 202

Steam Blower

Steam Gas valve with
common ignition box for
Steam and Hot Air (top)  tted

Hot Air blower (top)

Hot Air (bottom) Gas valve with
second ignition box  tted

C

M

Hot Air blower bottom
(ignition box  tted)

Ignition box of Hot Air Blower, Bottom (201-202):

Jumper must ONLY be set
on Ignition Box for
Hot Air Blower Bottom (201 - 202)

Gas valve components

Compensation hose

Srew

CO

2

Ignition box

Measuring test point for dynamic gas  ow pressure

Gas supply

-29-

Sequence of events of Steam / Hot Air Burner (SCC as well as CM)

C

Igniti

μA

M

C

-30-

Max RPM

RPM

8

Speed of burner blower motor in U/min

7

Sequence of events of Burner and Ignition control

6

Start RPM

Flame current

5

4

3

Min RPM

F l a m e c u r r e n t in μA

2

1

Time 2 3

Start up Pre purge

Pre ignition

Flame

Ignition Burner running

control

16 2419 2017 1810 11 14 15

21 22 23 26 27678901 45

2512 13

sec

Heat demand

Burner blower motor

Gas valve

Ignition, ca 20KV

Flame monitoring

Ignition box gets heat demand over the BUS cable

Start - pre purge

about. 4-5 sec

If no flame detected => new ignition sequence. After 5th ignition without success => RESET

Pre purge, 4 sec

RPM monitored

Flame monitoring within. 2 sec

Blower runs with Start RPM

RPM monitoring by ignition box

Energise Solenoids: Black coils ca 205V DC / orange coils ca 108V DC

on,5 secPre ignition, 1sec

Blower runs with Max or Min RPM

RPM monitoring by ignition box

continuous flame control