Zamel Exta ZCM-31P/U User manual

1-CHANNEL, ASTRONOMICAL DIGITAL TIME
PROGRAMMER ZCM-31, ZCM-31P/U MANUAL INSTRUCTION
ZAMEL Sp. z o.o.
ul. Zielona 27, 43-200 Pszczyna, Poland
Tel. [phone], Fax [phone]
www.zamel.com, e-mail: [email protected]
plik: inst_ext_en_zcm-31_31PU | modykacja: 06.04.2016
DESCRIPTION
MAIN MENU
STORAGE MODE
APPEARANCE**
OPERATION MODE CHANGE (AUTOMATIC, MANUAL)
• • The ZCM-31 programmers have a ‘storage mode’ default setting to protect the battery during storage.
• • During battery backup operation, the rst programmer activation is realised by means of pressing the ( ) button shortly which causes the storage mode is
changed, next it is required to set the date and time.
• • During rated voltage operation, the rst programmer activation is realised by setting the time and date.
• • The programmer can be readjusted to the storage mode by means of carrying out a device reset
• - in order to do it press the ( ) and ( ) buttons simultaneously for a shorter time in the main menu.
Description of elements and messages displayed
Description of buttons
• in the main window - enter the automatic mode;
• in other windows – go up one level without saving the entered data;
• in the main window – enter the manual mode or change the relay mode if the clock is in the manual mode;
• in other windows - go up one level without saving the entered data;
• in the main window –enter the main menu;
• in other windows – enter the submenu or conrm the settings;
• switching between windows / menu options or increasing /decreasing the pre-set parameters;
• right cursor ( ) in the main menu – sunrise and sunset time display.
Press OK to enter from the main menu to the
menu; use cursors ( ) to move in the menu.
It is possible to enter the main menu again by
pressing the ( ) or ( ) button. From the main
window you can also enter windows displaying
the calculated sunrise/sunset time by pressing
the ( ) cursor. Return is automatic after 10 s.
Function Description
NIGHT BREAK SETTING
SUNRISE / SUNSET TIME CORRECTION SETTING
CURRENT TIME SETTING
CURRENT DATE SETTING
SUMMER / WINTER TIME SETTING
GEOGRAPHICAL POSITION AND TIME ZONE SETTING
EXTERNAL INPUT SETTING
EXTERNAL MEMORY SETTING**
CALCULATED SUNRISE TIME
CALCULATED SUNSET TIME
FEATURES
TECHNICAL DATADESCRIPTION
Input (supply) terminals: A1, A2
Nominal supply voltage: ZCM-31: 230 V AC~(-15 ÷ +10 %)
ZCM-31P/U: 24 ÷ 250V AC, 30 ÷ 300 V DC
Nominal frequency: 50 / 60 Hz
Nominal power consumption: ZCM-31: 1,5 W / 16 VA – stand-by
/ switched on relay
ZCM-31P/U: 0,8 W / 1,4 VA – stand-by
ZCM-31P/U: 1,5 W / 2,9 VA - switched on relay
Number of channels: 1
Programme: astronomical (ofcial dawn and dusk)
Operation modes: manual, automatic
Summer/winter time change: automatic, manual
LCD backlight colour: amber
External input: yes
Cooperation with external memory: ZCM-31: no
ZCM-31P/U: yes
Time measuring accuracy: max. ± 1 s / 24 h for 25°C
Clock battery backup: 3 years
Programme battery backup: 10 years
Input (release) terminals: IN, IN, IN, IN
Output (load) terminals: 11, 12, 14
Relay contact parameters: 1 NO / NC 16 A / 250 V AC1 4000 VA
Number of connection terminals: 12
Cross-section of connection cables: 0,2 ÷ 2,50 mm²
Operating temperature range: -20 ÷ +60°C
Operating position: free
Casing mounting: TH35 rail (acc. to EN 60715)
Casing protection degree: IP20 (EN 60529)
Protection class: II
Overvoltage category: II
Pollution degree: 2
Dimensions: double modular (35 mm) 90 x 35 x 66 mm
Weight: 0,17 kg
Reference standard: EN 60730-1; EN 60730-2-7,
EN 61000-4-2,3,4,5,6,11
● control depending on current time in the
astronomical cycle,
● double modular casing with a protective
cover,
● IN control input,
● LCD with backlight,
● mounting on a TH35 rail.
ZCM-31 digital time programmers are
used to realize time functions in automa-
tion and control systems. Switching on /
switching off the device is related to sun-
set and sunrise (ofcial dawn and dusk).
The following information on geographic
coordinates of the clock’s installation
place, current date, and time difference
with regard to the universal time (GMT)
is used to calculate the time of sunrise
and sunset. The system calculates the
so-called ofcial time of sunrise and sun-
set and this is the phase when the upper
edge of the Sun touches the horizon. Ad-
ditionally, the system has the function of
a programmable night break and a pos-
sibility to change the calculated sunrise/
sunset time in the range of ±120 min.
The device casing construction allows
the system to be installed on a TH35 rail
and additionally the casing can be sealed.
The system structure guarantees battery
backup of the settings in case of power
supply failure.
CAUTION:
To protect the programmer’s battery
during storage time, the ZCM-31 series
has a ‘storage mode’ default setting
with a minimum current consumption.
The device is designed for sin-
gle-phase installation and must be in-
stalled in accordance with standards
valid in a particular country. The de-
vice should be connected according
to the details included in this manual instruction.
Installation, connection and control should be
carried out by a qualied electrician staff, who
act in accordance with the service manual and
the device functions. In case of casing disman-
tling, the guarantee is lost and an electric shock
may occur. Before installation make sure the
connection cables are not under voltage. Im-
proper transport, storage, and use of the device
inuence its wrong functioning. It is not advis-
able to install the device in the following cas-
es: if any device part is missing or the device
is damaged or deformed. In case of improper
functioning of the device contact the producer.
The symbol means selective collecting of elec
trical and electronic equipment. It is forbidden to
puttheusedequipmenttogetherwithotherwaste.
LCD
Relay output terminals
(12, 11, 14)
Control push buttons
External memory*
Input (release) terminals:
(IN, IN, IN, IN)
Input (supply) terminals:
(A1, A2)
Daytime / Night time
Winter time
Manual mode
Automatic mode
Day of the week
Relay mode
Information field / date
Current time (hh:mm:ss)
The symbol means selective collecting of
electrical and electronic equipment.
It is forbidden to put the used equipment
together with other waste.
CAUTION!
* not applicable to ZCM-31
** applicable to ZCM-31P/U
* not applicable to ZCM-31
** applicable to ZCM-31P/U
**
- days of the week
- relay mode
- automatic mode
- manual mode
- winter time
- summer time
- external input
- day
- year
- night break setting
- time correction setting
- current time setting and summer / winter time change
- current date setting
- geographical position setting
- external input setting
- external memory operation **
- write to external memory **
- read from external memory **
- external memory usage**
- reading / saving error**
/ - sunrise / sunset time
/ - latitude / longitude
- automatic, - user
- switched on /switched off
MODE CHANGE INTO MANUAL - if the system is in the main window and the automatic mode ( ) is active,
press the ( ) button to change the system into the manual mode with a simultaneous change of the relay
mode;
Subsequent pressing of the ( ) button causes the relay switches to the opposite mode, but the operation
mode does not change;
MODE CHANGE INTO AUTOMATIC - if the system is in the main menu and the manual mode is active,
press the ( ) button to change the system into the automatic mode with a simultaneous change of the
relay mode.

TIME CORRECTION SETTING
EXTERNAL MEMORY OPERATION**
GEOGRAPHICAL POSITION SETTING
NIGHT BREAK SETTING
TIME CORRECTION SETTING
WINTER / SUMMER TIME SETTING
EXTERNAL INPUT SETTING
DATE SETTING
– COORD – setting longitude, latitude and a time
zone; press OK to enter the view and setting edition; by means
of ( ) cursors choose parameters to change, whereas:
– latitude;
– longitude;
– time zone with reference to UTC;
For window (latitude); press OK to enter the edition:
Choose latitude parameters in the range of 90 South ÷ 90
North by means of ( ) cursors; press OK to conrm;
By means of cursors choose latitude minutes (if in step
the chosen latitude was 90, this step is omitted).
For window (longitude); press OK to enter the edition:
Choose longitude parameters in the range of 180 West ÷ 180
East by means of ( ) cursors; press OK to conrm;.
By means of ( ) cursors choose longitude minutes (if in step
the chosen longitude was 180, this step is omitted).
For window (time zone); press OK to enter the edition:
Choose hour time zone change in the range of -12 ÷ 12; press
OK to conrm.
– setting time correction; press OK to enter the setting view; by means of ( )
cursors choose the time to be changed whereas:
Correction of dusk time; press OK, press OK to enter the edition mode;
Correction of dawn time; press OK, press OK to enter the edition mode;
Correct the time within the range of -120 ÷ 120 min. By means of ( ) cursors, choose
an adequate value and conrm the choice with OK.
Example:
If you want the lighting to switch on 30 minutes earlier than the calculated time of sunset,
then the parameter in the tab must be set to „-30”.
It is possible to exit every sub-menu window in any moment without saving entered
settings by pressing the ( ) or ( ) button.
– setting the time of a night break; press OK to enter the setting view; by means of
() cursors choose the time to be changed whereas:
The start time of the night break; press OK to enter the edition mode,
The end time of the night break; press OK to enter the edition mode,
Choose an appropriate hour by means of ( ) cursors, and conrm with OK;
Choose an appropriate minute by means of ( ) cursors, and conrm with OK;
CAUTION!!!
The clock will work without a night break, if the start and end time of the night break
are the same.
It is possible to exit every sub-menu window in any moment without saving entered
settings by pressing the ( ) or ( ) button.
– setting time correction; press OK to enter the setting
view; by means of ( ) cursors choose the time to be changed
whereas:
Correction of dusk time; press OK, press OK to enter the edition mode;
Correction of dawn time; press OK, press OK to enter the edition mode;
Correct the time within the range of -120 ÷ 120 min. By means of
() cursors, choose an adequate value and conrm the choice
with OK..
- the selection of one of two modes where the winter and summer time change will occur: – the change will take place in automatically, on the
last Sunday of March at 2.00 (into summer time), and on the last Sunday of October at 3.00 (into winter time), - a user chooses between winter/ summer
time, press OK to enter;
MODE SETTING - choose or mode by means of ( ) cursors, press OK to conrm; after choosing the AUTO mode, the clock automatically sets the time into
summer or winter time depending on the adjusted date; after choosing the USER mode you enter another window
;
Choose winter/ summer time by means of cursors where ( ) depicts winter time and ( ) depicts summer time, if the icon changes the system will change
the current time by adding or subtracting 1 hour, press OK to conrm;
After this selection the system enters the window of the summer / winter time change.
- setting a mode the system should
operate in after external input IN release;
press OK to enter the edition; choose an
appropriate mode for the external input by
means of ( ) cursors, whereas:
- the external input function is switched
off;
- manual mode with a permanently
switched off relay;
- manual mode with a permanently
switched on relay;
- automatic mode, the system realizes
the relay switching on / switching off func-
tion according to the adjusted programmes;
Press OK to conrm the selected mode;
conrmation allows to enter the external
input setting window.
The external memory allows to save / read
easily the programmes set in the external me-
mory, in this way they can be quickly moved
to other programmes. It is very convenient
in case we want to programme more ZCM
programmers or archive the already set pro-
grammes.
– sub-menu for the external memory
operation.
– programme saving.
– programme reading from the exter-
nal memory and writing to the program-
mer’s memory.
– memory usage status during saving
/ reading.
– correct saving / reading.
– wrong saving / reading.
It is possible to exit every sub-menu window in any moment without saving entered settings by pressing the ( ) or ( ) button.
- setting the current date; press OK to enter;
YEAR - choose a year by means of ( ) cursors, conrm the choice with OK; setting value: 2000÷2099;
MONTH - choose a month by means of ( ) cursors, conrm the choice with OK;
DAY – choose the day of the month by means of ( ) cursors; conrm the choice with OK; the system has a safety device to prevent the entry of an incorrect
day parameter for a particular month (it includes the leap years) and it automatically calculates the day of the week on the basis of the set date);
By conrming the above the system changes to a date and current summer/ winter time setting window - if the option is adjusted.
It is possible to exit every sub-menu window
in any moment without saving entered set-
tings by pressing the ( ) or ( ) button.
It is possible to
exit every sub-
-menu window
in any moment
without saving
entered settings
by pressing the
() or ( ) button.
It is possible to exit every sub-menu window
in any moment without saving entered settin-
gs by pressing the ( ) or ( ) button.
* not applicable to ZCM-31
** applicable to ZCM-31P/U
* not applicable to ZCM-31
** applicable to ZCM-31P/U

MAIN RESET
* not applicable to ZCM-31
** applicable to ZCM-31P/U
CONNECTION
GEOGRAPHICAL POSITION OF LARGER CITIES
Albania Tiranë 41:20:00 °N 019:49:00 °E
Algeria Algiers 36:50:00 °N 003:02:00 °E
Andorra Andorra 42:30:00 °N 001:30:00 °E
Austria Graz 47:05:00 °N 015:22:00 °E
Austria Innsbruck 47:17:00 °N 011:25:00 °E
Austria Leibnitz 46:48:00 °N 015:33:00 °E
Austria Linz 48:19:00 °N 014:18:00 °E
Austria Salzburg 47:54:00 °N 013:03:00 °E
Austria Vienna 48:13:00 °N 016:22:00 °E
Belarus Minsk 53:51:00 °N 027:30:00 °E
Belgium Antwerp 51:13:00 °N 004:25:00 °E
Belgium Brugge 51:12:00 °N 003:14:00 °E
Belgium Brussels 50:50:00 °N 004:21:00 °E
Belgium Liège 50:38:00 °N 005:35:00 °E
Bosnia Sarajevo 43:52:00 °N 018:26:00 °E
Croatia Dubrovnik 42:40:00 °N 018:07:00 °E
Croatia Split 43:31:00 °N 016:28:00 °E
Croatia Zagreb 45:48:00 °N 015:58:00 °E
Cyprus Nicosia 35:10:00 °N 033:22:00 °E
CzechRep Prague 50:05:00 °N 014:25:00 °E
Denmark Aalborg 57:03:00 °N 009:51:00 °E
Denmark Copenhagen 55:43:00 °N 012:34:00 °E
Denmark Odense 55:24:00 °N 010:25:00 °E
Finland Helsinki 60:08:00 °N 025:00:00 °E
Finland Inari 68:54:00 °N 027:05:00 °E
Finland Tampere 61:32:00 °N 023:45:00 °E
Finland Turku 60:27:00 °N 022:15:00 °E
France Bordeaux 44:50:00 °N 000:34:00 °E
France Cherbourg 49:40:00 °N 001:35:00 °E
France Grenoble 45:11:00 °N 005:43:00 °E
France LeChesnay 48:50:00 °N 002:07:00 °E
France LeHavre 49:30:00 °N 000:06:00 °E
France LeMans 48:00:00 °N 000:12:00 °E
France Lyon 45:46:00 °N 004:50:00 °E
France Marseille 43:18:00 °N 005:22:00 °E
France Nancy 48:42:00 °N 006:12:00 °E
France Nantes 47:14:00 °N 001:35:00 °E
France Nice 43:42:00 °N 007:16:00 °E
France Paris 48:52:00 °N 002:20:00 °E
France Rennes 48:06:00 °N 001:40:00 °E
France Strasbourg 48:35:00 °N 007:45:00 °E
France Toulouse 43:42:00 °N 001:28:00 °E
Germany Berlin 52:30:00 °N 013:26:00 °E
Germany Bonn 50:44:00 °N 007:06:00 °E
Germany Dortmund 51:32:00 °N 007:27:00 °E
Germany Dresden 51:03:00 °N 013:45:00 °E
Germany Dusseldorf 51:13:00 °N 006:47:00 °E
Germany Frankfurt 50:06:00 °N 008:41:00 °E
Germany Freiburg 48:00:00 °N 007:52:00 °E
Germany Hamburg 53:33:00 °N 010:00:00 °E
Germany Hannover 52:23:00 °N 009:44:00 °E
Germany Karlsruhe 49:00:00 °N 008:24:00 °E
Germany Kassel 50:19:00 °N 009:30:00 °E
Germany Leipzig 51:20:00 °N 012:20:00 °E
Germany München 48:08:00 °N 011:35:00 °E
Germany Nurenberg 49:27:00 °N 011:05:00 °E
Germany Rostock 54:06:00 °N 012:09:00 °E
Germany STUTTGART 48:47:00 °N 009:12:00 °E
Germany Wurzburg 49:48:00 °N 009:57:00 °E
Greece Athens 38:00:00 °N 023:44:00 °E
Greece Thessalonika 40:38:00 °N 022:58:00 °E
Hungary Budapest 47:30:00 °N 019:00:00 °E
Iceland Reykjavik 61:09:00 °N 021:58:00 °E
Ireland Dublin 53:20:00 °N 006:15:00 °E
Ireland Galway 53:16:00 °N 009:03:00 °E
Ireland Limerick 52:40:00 °N 008:38:00 °E
Ireland Waterford 52:15:00 °N 007:06:00 °E
Italy Cagliari 39:13:00 °N 009:08:00 °E
Italy Florence 43:47:00 °N 011:15:00 °E
Italy Milan 45:28:00 °N 009:12:00 °E
Italy Naples 40:50:00 °N 014:15:00 °E
Italy Palermo 38:08:00 °N 013:23:00 °E
Italy Rome 41:53:00 °N 012:30:00 °E
Italy Taranto 40:28:00 °N 017:15:00 °E
Italy Turin 45:04:00 °N 007:40:00 °E
Italy Venice 45:26:00 °N 012:20:00 °E
Latvia Riga 56:53:00 °N 024:08:00 °E
Luxembourg Luxembourg 49:37:00 °N 006:08:00 °E
Macedonia Skopje 42:00:00 °N 021:26:30 °E
Monaco MonteCarlo 43:44:00 °N 007:25:00 °E
Netherlands Amsterdam 52:21:00 °N 004:54:00 °E
Netherlands Apeldoorn 52:13:00 °N 005:57:00 °E
Netherlands Maastricht 50:51:00 °N 005:42:00 °E
Netherlands Nijmegen 51:50:00 °N 005:52:00 °E
Netherlands Rotterdam 51:55:00 °N 004:29:00 °E
Netherlands TheHague 52:05:00 °N 004:16:00 °E
Norway Bergen 60:23:00 °N 005:20:00 °E
Norway Oslo 59:56:00 °N 010:17:00 °E
Norway Stavager 58:58:00 °N 005:45:00 °E
Norway Trondheim 63:36:00 °N 010:23:00 °E
Portugal Lisbon 38:44:00 °N 009:08:00 °E
Portugal Pôrto 41:09:00 °N 008:37:00 °E
Romania Bacau 46:32:00 °N 026:59:00 °E
Romania Bucharest 44:25:00 °N 026:07:00 °E
Russia Irkutsk 52:18:00 °N 104:15:00 °E
Russia Moscow 55:45:00 °N 037:35:00 °E
Russia Murmansk 68:59:00 °N 033:08:00 °E
Russia Novosibirsk 55:04:00 °N 082:51:30 °E
Russia Omsk 55:00:00 °N 073:22:00 °E
Russia Smolensk 54:49:00 °N 032:04:00 °E
Russia StPetersburg 59:55:00 °N 030:25:00 °E
Russia Vladivostok 43:09:00 °N 131:53:00 °E
Russia Volgograd 48:45:00 °N 044:30:00 °E
Slovakia Bratislava 48:10:00 °N 017:10:00 °E
Slovenia Ljubljana 46:40:00 °N 014:30:00 °E
Spain Barcelona 41:25:00 °N 002:10:00 °E
Spain Gibraltar 36:09:00 °N 005:21:00 °E
Spain Madrid 40:25:00 °N 003:43:00 °E
Spain Malaga 36:43:00 °N 004:25:00 °E
Spain Santander 43:28:00 °N 003:48:00 °E
Spain Seville 37:24:00 °N 005:59:00 °E
Spain Valencia 39:29:00 °N 000:24:00 °E
Sweden Goteborg 57:45:00 °N 012:00:00 °E
Sweden Malmö 55:35:00 °N 013:00:00 °E
Sweden Stockholm 59:20:00 °N 018:05:00 °E
Switzerland Basel 47:33:00 °N 007:36:00 °E
Switzerland Geneva 46:13:00 °N 006:09:00 °E
Switzerland Luzern 47:02:00 °N 008:17:30 °E
Switzerland Zürich 47:23:00 °N 008:33:00 °E
Turkey Ankara 39:55:00 °N 032:50:00 °E
Turkey Istanbul 41:02:00 °N 028:59:00 °E
UK Birmingham 52:30:00 °N 001:50:00 E°
UK Brighton 50:50:00 °N 000:10:00 °E
UK Bristol 51:28:00 °N 002:35:00 °E
UK Cardiff 51:30:00 °N 003:12:00 °E
UK Edinburgh 55:56:00 °N 003:14:00 °E
UK Glasgow 55:52:00 °N 004:18:00 °E
UK Leeds 53:50:00 °N 001:34:00 °E
UK Leicester 52:40:00 °N 001:09:00 °E
UK Liverpool 53:24:00 °N 002:58:00 °E
UK London 51:30:00 °N 000:10:00 °E
UK Manchester 53:27:00 °N 002:15:00 °E
UK Middlesborough 54:34:00 °N 001:10:00 °E
UK Newcastle 55:00:00 °N 001:30:00 °E
UK Nottingham 52:58:00 °N 001:10:00 °E
UK Oxford 51:45:00 °N 001:14:00 °E
UK Shefeld 53:24:00 °N 001:27:00 °E
UK Southampton 50:55:00 °N 001:23:00 °E
Ukraine Kiev 50:28:00 °N 030:29:00 °E
Ukraine L’vov 49:50:00 °N 024:00:00 °E
Ukraine Odessa 46:30:00 °N 030:46:00 °E
Ukraine Sevastopol 44:36:00 °N 033:31:00 °E
Yugoslavia Belgrade 44:45:30 °N 022:29:30 °E
MOUNTING
ADVANTAGES
Intelligent calendar - the system has an in-built calendar, which automatically includes leap years.
The above prevents from entering a non existent date and it also calculates the day of the week
with reference to the date and remembers about the summer / winter time change.
Universal external input - the system is equipped with an external input that can be used by a
user to change the clock work mode without the necessity of interfering in a distribution board, it
can be done by means of a remote control button.
Cooperation with the external memory**- a user has a possibility to quickly write / read the clock
settings to / from the external memory and to transfer them to other programmes.
CASING DIMENSIONS
PRODUCT FAMILY
ZCM-31 programmer belongs to the
ZCM product family.
1. Disconnect power supply by the phase
fuse, the circuit-breaker or the switch-
-disconnector combined to the proper
circuit.
2. Check if there is no voltage on the
connection cables by means of a
special measuring equipment.
3. Install the device on a TH35 rail in the
distribution board.
4. Connect the device cables with the ter-
minals in accordance with the instal-
ling diagram.
5. Switch on the power supply from the
mains.
INNER DIAGRAM
CAPACITY
A2
A1
IN
μC
KLAW. LCD
RTC
ZAS.
Programmer type:
11 - weekly (1 channel)
12 - weekly (2 channels)
21 - annual
31 - astronomical (1 channel)
32 - astronomical (2 channels)
XXP – with external memory
Device symbol
Power supply voltage:
ZCM-XX - 230 V AC
ZCM-XX/U - 24-250 V AC
30-300 V DC
L(+**)
L(+) / N(-)
N(-**)
In order to cancel the clock settings (time,
date, function activity, etc.) press the ( ) and
() buttons in the main window simultaneo-
usly for 3 seconds;
Each display eld will light up;
After a while, the clock will automatically
change to the date and time setting window.
CAUTION: In order to restore factory settings, press the OK button for a while.
WARRANTY CARD
There is a 24 month guarantee on the product
Salesman stamp and signature, date of sale
1. ZAMEL Sp. z o.o. assures a 24 month guarantee for the product.
2. The manufacturer’s guarantee does not cover any of the following actions:
a) mechanical damage during transport, loading / unloading or under other circumstances,
b) damage caused by incorrect product mounting or misuse,
c) damage caused by unauthorised modications made by the PURCHASER or any third parties to the product or any other devices
required for the product functioning,
d) damage caused by Act of God or any other incidents independent of the manufacturer – ZAMEL Sp z o.o.
3. The PURCHASER shall lay any claims in writing in the place of purchase or to ZAMEL Sp. z o.o.
4. ZAMEL Sp. z o.o. is liable for processing any claim according to current Polish legislation.
5. ZAMEL Sp. z o.o. shall process the claim at its own discretion: product repair, replacement or money return.
6. The manufacturer’s guarantee is valid in the Republic of Poland.
7. The PURCHASER’s statutory rights in any applicable legislation whether against the retailer arising from the purchase contract or otherwise
are not affected by this warranty.