Powrmatic MC200 User guide

Stamm International Corporation
PO Box 1929
Fort Lee, NJ 07024
Tel: [phone]
Fax: [phone]
E-mail: [e-mail]
Stamm International HQ
www.powrmatic.co.uk
www.powrmatic.co.uk
®
Powrmatic Limited
Hort Bridge, Ilminster
Somerset
TA19 9PS
tel: [phone]
fax: [phone]
e-mail: [email protected]
web: www.powrmatic.co.uk
Powrmatic Ireland
45 Broomhill Close
Tallaght
Dublin 24
tel: [phone]
fax: [phone]
e-mail: [email protected]
web: www.powrmatic.ie
Getting In Touch
Powrmatic pursues a policy of continues improvement in both design and performance of its products and therefore reserves the right to change, amend or
vary specifications without notice. Whilst the details contained herein are believed to be correct they do not form the basis of any contract and interested
parties should contact the Company to confirm whether any material alterations have been made since publication of this brochure.
EURO-AIR
QUALITY
ICOM
Energy Association
More information is available from our website by scanning the following QR code.
MC200
User, Installation & Servicing Manual
Issue 5.8 January 2022
Doc Ref: M401 Issue 5.8 Jan 2022

page no. 2 of 28 MC200/V3 Users, Installation & Servicing Instructions Doc Ref M401 issue 5.8 January 2022.
www.powrmatic.co.uk
Important: This certificate
must be kept with the appliance
Failure to provide a copy of the commissioning sheet invalidates the heater warranty
----------------------------------------------------
Powrmatic Ltd, Hort Bridge, Ilminster, Somerset, TA19 9PS
Tel: [phone] Fax: [phone]
Web: www.powrmatic.co.uk e-mail: [email protected]
This is to certify that this controller is guaranteed for one year from the date of original installation.
To make a claim
In the first instance you must contact your appliance supplier, or installer and provide:-
1. The appliance type and serial number.
2. The original commissioning documentation plus as much detail as possible on the fault.
3. Your supplier, or installer, will then contact Powrmatic to make a guarantee claim on your behalf.
Conditions of Guarantee
1. The controller must have been installed by a competent recognised installer, and in accordance
with the manufacturer’s instructions, I.E.E. regulations and local regulations.
2. The controller has been used in accordance with the manufacturers instructions.
3. No unauthorised repairs of modifications have been made. Powrmatic ‘General Conditions of
Sales’ have been observed.
4. Except for the obligation of Powrmatic Ltd to perform warranty repairs during the guarantee
period Powrmatic will not be liable in respect of any claim for direct or indirect consequential
losses, including loss of profits or increased cost arising from loss of use of the heater, or any
event arising there from.
CertificateOfGuarantee
Certificate of Guarantee
®

page no. 3 of 28
MC200/V3 Users, Installation & Servicing Instructions Doc Ref M401 issue 5.8 January 2022.
Title Section Contents Page
User Instructions 4
Pre Installation
1.1 Introduction 9
1.2 Technical data 11
Dimensions 11
Installation
2.1 Fitting the unit 12
2.2 Electrical Cable Installation 13
2.3 Interconnecting Wiring Diagrams 15
2.3.1 Current ErP 2021 Heaters 15
LX/VX Heaters with Modulation control 15
LX/VX Heaters with optional High/Low control 15
LX/VX Heaters with optional On/Off control 15
Current ErP 2018 Heaters 16
CPx Heaters 1 phase with High/Low control 16
CPx Heaters 3 phase with High/Low control 16
OUH Heaters with High/Low control 16
2.3.2 Current ErP 2018 Radiant Tube Heaters 17
SRP Linear and U Tube with High/Low control 17
SRP DL with High/Low control 17
SRP HB Herringbone with High/Low control 17
2.3.3 ErP 2018 Heaters 18
LNVx/VPx Heaters with High/Low control 18
LNVx/VPx with optional Modulation control 18
2.3.4 Non-ErP Heaters (prior to 2018) 19
NVx/VPC Heaters with On/Off control 19
NVx/VPC Heaters with optional High/Low control 19
NVx/VPC with optional Modulation control 19
CPx Heaters 1 phase with High/Low control 20
CPx Heaters 3 phase with High/Low control 20
OUH Heaters with High/Low control 20
NVS Heaters with On/Off control 21
NVS Heaters with optional High/Low control 21
2.4 Commissioning and Output Sequences 22
Additional Documents
3.1 Fault Displays and Fault Finding 26
3.2 Short Parts List and Options 27
Users,InstallationandServicingInstructions
CONTENTS
Contents

page no. 4 of 28 MC200/V3 Users, Installation & Servicing Instructions Doc Ref M401 issue 5.8 January 2022.
Heat
Heat Button - (Note: this facility may be limited
or disabled by the User).
If heating is ON (via programme)
Pressing the Heat button for less than 2 seconds
overrides the programme to OFF. Any extension time that
has been set is canceled.
Pressing the heat button for more than 3 seconds
determines that heat will remain on for an extension time
after the programmed off time. The extension timer will
increase in 30 minute steps, up to the maximum allowed
period, and then revert to 0 minutes.
Release the button when the required extension period is
showing.
If heating is OFF (via override)
Pressing the Heat button removes override and reverts to
the current programme. If heating is OFF (via programme)
Pressing the Heat button for less than 2 seconds brings
on heating for 30 minutes.
Pressing the heat button for more than 3 seconds
will increase the on time in 30 minute steps, up to the
maximum allowed period, and then revert to 0 minutes.
Release the button when the required heating period is
showing.
Fan
Fan Button - (Note: this facility may be limited
or disabled by the User).
In WINTER and OFF mode and RADIANT burner type, the
Fan button has no control over the heater fan.
In SUMMER mode, the Fan button switches on the fan for
air circulation, and another press switches it off. If the fan
is left on, it will be automatically switched off at midnight.
If the fan is running because the heating is on and the fan
is in AUTO or CONST mode, the Fan button cannot switch
it off.
If the fan is in an ON mode, it always runs, in WINTER,
SUMMER and OFF. The Fan button cannot switch it off.
Reset
Reset Button - Press to reset the burner
controls from lockout, (when this facility is
available on the heater).
Select
Select Button - Press to accept changes.
Decrease
Decrease Button -Press to decrease values.
UserInstructions
Heat Button.
Heating On Indicator
Fault Indicator
Fan Button
Burner Lockout
Reset Button
Back Button Quit Button
Next Button
Increase Button
Select Button
Decrease Button
Terminal Cover

page no. 5 of 28
MC200/V3 Users, Installation & Servicing Instructions Doc Ref M401 issue 5.8 January 2022.
Increase
Increase Button - Press to increase values.
Quit
X
Quit Button - Press to exit without saving
changed values.
Back
Back Button - Press to enter User Menu, go
back to previous screen.
Next
Next Button - Press to enter User Menu, go
forward to next screen.
Indicators
Heating On - Is illuminated when the MC200 is calling
for heat (It does not confirm that the heating is actually
working).
Yellow - when the heater has a Modulating burner.
Red - when the heater is either in Hi-Low burn or a
Radiant mode. Red will also flash in radiant mode
when fan in a delay on or delay off.
Green when the heater is a single-stage burner.
Fault - Flashes when the burner control is at lockout,
solid light when a service call is due (if this has been set)
or when there is a sensor fault. The bottom line of the
display will alternate between normal display and type of
fault.
B) Display
The first display normally shows:
• the current air temperature as measured by the
internal sensor, an external sensor or the average
temperature if two sensors are fitted.
8.5.C09:42 Tue
P1 HEAT ON
• the time of day using 24-hr notation. The colon flashes
once per second to confirm that the clock is running.
8.5.C09:42 Tue
P1 HEAT ON
• the day of the week. Programmes are associated
with individual days of the week or day-groups such as
weekday or weekend.
8.5.C 09:42 Tue
P1 HEAT ON
•Programme number - Px n (where x represents the active
programme number.)
8.5.C 09:42 Tue
P1 HEAT ON
• the current setting of the heater: ON or OFF, as
determined by the internal programmes (the display will
say ON even if the MC200 is not currently calling for heat
because the thermostat is satisfied)
8.5.C 09:42 Tue
P1 HEAT ON
or for High/Low an indication of the heat demand. HEAT
HI or HEAT LO,
8.5.C 09:42 Tue
P1 HEAT HI
or for Modulating burners a simple bar-graph display for
modulating control heaters where 1 bar is low fire and 10
bars is high fire.
8.5.C 09:42 Tue
P1
• “Frost Guard” is displayed when Frost/setback is set
to ON and the space temperature is lower than the Frost/
setback temperature setting.
0.5.C 09:42 Tue
Frost guard
C) Direct Control
Note: If configured during the commissioning
stage the User has the following direct control
of the heater without using the settings menu.
• If the Fault LED is on because the heater is at lockout,
the user can reset the heater by pressing the Reset
button.
• The user can switch the heating ON or OFF by pressing
the Heat button.
• The user can start or cancel extension time by pressing
the Heat button longer than 3 seconds.
• The user can run the fan without heating, by pressing
the Fan button.
• Pressing of the next button will scroll through the
screen displays available to the user
UserInstructions

page no. 6 of 28 MC200/V3 Users, Installation & Servicing Instructions Doc Ref M401 issue 5.8 January 2022.
Temperature 18.0
Date: 20/08/2017
Password ****
Next
Next
Next
8.5.C 09:42 Tue
HEAT OFF FAN OFF
Next
The top line will show which setting or which part of the
programmes you are viewing.
The second line of the display shows which keypad
buttons are active ( ◄-üX+►).
After changing any setting, press the übutton to save
the new setting.
To return to the normal display, press the Xbutton or do
not touch any buttons for 15 or more seconds.
Keys ◄, ►,-and +will auto-repeat if held down longer
than approximately half a second.
The +button will automatically wrap round from the
maximum value to the minimum value and the -button
will wrap the other way.
D) User Settings
Temperature
Temperature 18.0
This shows the temperature set by the currently
active programme, and it is the target temperature for
thermostatic control. The user can increase or decrease
the value to adjust comfort. This will not alter the set
temperature associated with the programme, but it will
temporarily alter the target temperature for thermostatic
control.
The effect of altering the temperature lasts until the
current programme expires or until another programme
changes the set temperature requirement.
Note: the range of adjustment permitted may
be limited during commissioning. Temperature
adjustment can be disabled by a setting within
the user menu.
• Press the +or -button to increase or decrease the day
temperature set point.
• Press the übutton to save changes, press the X
button to exit without saving, press the ►button to
move to the next setting.
Clock Set
Clock set
Sets the current date and the time of day. The correct
date allows the MC200 to know the day of the week,
allows for automatic BST-GMT changeovers, carries
out the holiday shutdown function and permits override
password entry.
• Press the übutton to alter date and/or time.
• Press the ◄or ►button to select digit to change (digit
chosen will flash).
• Press the +or -button to change the digit.
• Press the ◄or ►button to select next digit to change
or until 'Set clock?' appears on screen
• Press the übutton to save changes, press the X
button to exit without saving, press the ►button to
move to the next setting.
UserInstructions

page no. 7 of 28
MC200/V3 Users, Installation & Servicing Instructions Doc Ref M401 issue 5.8 January 2022.
Programme Settings
Prog settings
The MC200 has 14 programmes, each of which can be
assigned to any day of the week. Each programme can
be given an ON time, an OFF time and a set temperature.
The user may organize the programmes in any way that
suits. The simplest would be one programme ON in the
morning, OFF at the end of the afternoon, active Monday
to Friday.
If two or more programmes are active at the same time,
for instance one is ON all day and another is ON between
11:00 and 13:00, then the set temperature of the second
programme will apply between 11:00 and 13:00, and the
set temperature of the first programme will apply during
the rest of the working day.
Programme times increment in 5 minute steps.
Extension time (if set) applies when all programmes have
reached the end of their set period for that day.
Optimum start applies at the beginning of the first
programme to switch on and optimum stop applies at the
end of the last programme to switch off.
• Press the übutton to set/alter programme.
• Press the übutton to alter programme P1 or the +or
-button to select specific programme number then press
the übutton to accept.
• Press the +or -button to alter/set the HEAT ON time.
• Press the ►button to move to the HEAT OFF time
• Press the +or -button to alter/set the HEAT OFF time.
• Press the ►button to move to the temperature
• Press the +or -button to change the temperature.
• Press the ►button to move to the Programmed days
• Press the +or -button to alter between: Mon-Fri;
SatSun; 7 days; Off or individual days.
• Press the ►button to and 'Save Prog x?' will appear.
• Press the übutton to save changes, press the X
button to exit without saving, press the ►button to
move to the next setting.
Holiday Date
Holiday date
A future date can be set so that the heating will not
operate on that date, and remains “OFF” for a consecutive
number of days from that date. The date includes the
year number, ensuring that the holiday shutdown date is
not automatically repeated the following year.
During the holiday period the heater will only operate
if the temperature falls below the frost temperature
and if frost temperature operation is selected “ON”
in the engineer menu. The night temperature setting
is ignored during holidays. During the holiday period,
manual operation of the fan or heater is permitted. Any
manual operation still on at midnight will be automatically
cancelled.
• Press the übutton to add a holiday period.
• Press the +or -button to set the start date.
• Press the ►button to select the month to change.
• Press the +or -button to set the month.
• Press the ►button to select the year to change.
• Press the +or -button to set the year.
• Press the ►button to select the number of days.
• Press the +or -button to enter the number of days.
• Press the ►button to and 'Holiday save?' will appear.
• Press the übutton to save changes, press the X
button to exit without saving, press the ►button to
move to the next setting.
Run Mode
Run mode: WINTER
The MC200 has three Run modes: WINTER, SUMMER and
OFF.
Winter - the heating operates when any programme
is in a “HEAT ON” period. The heating also operates to
maintain the Night Temperature if this has been set. The
heating also operates when the temperature drops below
the frost temperature.
NOTE: Summer/Winter mode has no
connection with the clock change from GMT to
BST.
Summer - the fan operates to circulate air when switched
on manually. With certain types of heater or certain types
of installation, Fan-only operation may not be appropriate
and the fan control circuit should not be used.
In SUMMER the heating never operates unless the
temperature drops below the frost temperature.
During commissioning the frost temperature operation
will be set to be ON or OFF. If the frost setting is OFF, the
heater will not operate under frost conditions in any User
mode.
OFF - the heater never operates unless the temperature
drops below the frost temperature (see above)
• Press the +or -button to change between WINTER,
SUMMER & OFF.
• Press the übutton to save changes, press the X
button to exit without saving, press the ►button to
move to the next setting.
UserInstructions

page no. 8 of 28 MC200/V3 Users, Installation & Servicing Instructions Doc Ref M401 issue 5.8 January 2022.
User Button Permission
Permissions
This menu option facilitates the user to enable or disable
the following controls separately if it is required to restrict
unauthorised access to user controls.
NOTE: User permissions are only effective
when User access to the menu is protected by
a password.
• Reset - Allows operation of the reset button
• Change temperature - Allows temporary adjustment
of the current set temperature
• Heat Override - Allows switching ON/OFF and
extension of Heat ON time
• Fan override - Allows switching ON/OFF of the fan
• Press the übutton to alter the permissions.
• Press the +or -button to toggle between YES & NO..
• Press the ►button to select next digit to change or until
'Save??' appears on screen
• Press the übutton to save changes, press the Xbutton
to exit without saving, press the ►button to move to the
next setting.
Set Password
SetPassw ****
The user may enter a 4-digit password here. Once set,
the password must be given before selected user controls
may be accessed or changed. “Set password” cannot be
entered unless the password has been given.
As delivered, the MC200 has no User password
restrictions.
• Press the +or -button to set the first digit.
• Press the ►button to select the next digit.
• Press the +or -button to set the second digit.
• Press the ►button to select the next digit.
• Press the +or -button to set the third digit.
• Press the ►button to select the next digit.
• Press the +or -button to set the last digit.
• Press the übutton to save changes - 'SET OK' will
appear briefly, press the Xbutton to exit without saving,
press the ►button to move to the next setting.
Extension Time
Extend time 1:00
A user can extend the heating to operate beyond the
switch-off time of the last programme of the day, in
30minute increments, by pressing the Heat button. This
menu option allows a maximum extension period to be
set, in units of 30minutes.
If set to 0 minutes, extension is not permitted.
Factory default setting: 1 hour. Maximum setting 3 hours.
• Press the +or -button to set the appropriate extended
time.
• Press the übutton to save changes - 'Setting saved'
will appear briefly, press the Xbutton to exit without
saving, press the ►button to move to the next setting.
Cost Log
Cost Log
This option shows the total hours run and the total cost
of running since the log was last cleared. The display will
show the date when it was last cleared. For this option to
function it is necessary to enter the fuel cost and heater
rating (see Engineer Menu for the latter). The cost log
should be cleared whenever the heater type is changed.
For Hi/Lo heaters, there are two heater power entries
and the MC200 will calculate the run cost according to the
level of heat requested.
In the case of modulating control heaters, the cost is an
estimate based on half the full heater power.
• Press the übutton to enter the submenu. Display
shows Start Date.
• Press the ►button to select next screen 'Total Hours'.
• Press the ►button to select next screen 'Total Cost'.
• Press the ►button to select next screen 'Clear Log?'.
• Press the übutton to clear log. This will reset the start
date to the current date.
• Press the ►button to select next screen 'costs per
kWh'
• Press the +or -button to change the cost per kWh.
• Press the übutton to save changes, press the X
button to exit without saving, press the ►button to
move to the next setting.
UserInstructions

page no. 9 of 28
MC200/V3 Users, Installation & Servicing Instructions Doc Ref M401 issue 5.8 January 2022.
Password
Password ****
Once a password has been set, the password must be
entered at this menu option to allow access to selected
user controls.
Once entered the password gives access to the User
menu functions for 60 minutes.
To re-apply the restrictions before the end of the 60
minute period, select the ‘Enter password’ option and
press the übutton without entering any digits. The
display will show ‘Password CLOSED’.
• Press the +or -button to set the first digit.
• Press the ►button to select the next digit.
• Press the +or -button to set the second digit.
• Press the ►button to select the next digit.
• Press the +or -button to set the third digit.
• Press the ►button to select the next digit.
• Press the +or -button to set the last digit.
The MC200/V3 is a high specification heating controller
designed specifically to meet the demands of modern fuel
efficient heating equipment and the latest energy saving
and environmental guidelines and uses a simple menu
based structure for entering User settings.
Optimum start technology is available that will continually
monitor the heating systems previous performance to
determine the optimum time to turn the heating on to
raise the space temperature to the required level for when
occupancy begins. Optimum stop can also be selected
which can save energy at the end of the heating period.
The MC200/V3 is protected by 2 levels of password.
The User password may be set to restrict access to
certain User controls. The second password is for use by
commissioning and servicing engineers and allows access
to parameters normally used only in the initial setting of
the controller, a fault log and system reset facility.
The user keypad allows easy selection of the heating and
fan only modes, the override functions and fault reset.
These may also be locked in various combinations to allow
different levels of user accessibility.
The MC200/V3 can give a readout of the hours the burner
has operated, to help accessing servicing intervals and
after being programmed with the correct data, can also
give an indication of the running costs of the heating
appliance. In addition a forward service date can be
UserInstructions
1.1Introduction
• Press the übutton to save changes - VALID will
appear briefly, press the Xbutton to exit without saving,
press the ►button to move to the next setting.
If 'FAIL' appears on the screen, the incorrect password
has been entered. Repeat entry sequence.
E) Additional notifications
Service Date
When the MC200 is installed the Commissioning Engineer
may have entered a date for when the heating equipment
requires servicing.
When this date is reached the MC200 fault indicator will
be illuminated and the display will alternate between the
normal display and "Service due, call engineer".
Service due,call
engineer
The Service Engineer can clear this display by entering a
new service date when the heating equipment has been
serviced.
programmed. When the due date is reached a notification
will be shown which alternates with the normal display.
This notification can only be removed by a Service
Engineer.
The MC200/V3 can be used to directly control both Hi/
Lo and Modulating burners, the latter by an internally
generated 0-10V signal.
1.1.2Clock
• The unit date range is from 01/01/2001 to 31/12/2099
• Leap years are recognised
• BST begins on the last Sunday in March and ends on
the last Sunday in October. The time changes at 01:00
GMT.
• The clock may gain or lose up to 10 minutes in a year.
1.1.3Programme
• 14 timers are provided in the software, and each can
be assigned to any single day of the week, or to day
groupings such as weekdays or weekends. This allows
greatest flexibility in operating the heating whenever
required.
• It is possible to schedule timers so that one starts
before another has finished. The heating will be on while
any timer is requiring Heat On, and the heating will turn
off only when all timers have reached Heat Off. The

page no. 10 of 28 MC200/V3 Users, Installation & Servicing Instructions Doc Ref M401 issue 5.8 January 2022.
requested temperature will be set by the most recent
timer to switch On. When an overlapping timer switches
Off, the requested temperature will be set by the
remaining timer(s).
Important: No timer can be programmed to
run past midnight, because it is assigned to a
day of the week. If timed heating is required
across midnight, it must be provided by two
timers, one ending at 23:59 and the other starting at
00:00. At midnight, all manual over-rides and extensions
are cleared.
1.1.4OptimumStart
A control system which starts plant operation at the latest
possible time such that internal conditions will be up to
required limits at the start of the occupancy period.
• The MC200/V3 achieves Optimum start by keeping
a moving record of how many minutes it takes to
increase the temperature per degree in each 3° band of
temperature from 5°C to 20°C. The current overnight
temperature is referenced and the MC200/V3 can
estimate how many minutes are required to bring the
temperature to the required level.
When Optimum Start is enabled the switch-on time for
the heater is then advanced accordingly to achieve the
required temperature by the Heat On time i.e. the warmer
the night time temperature the closer the switch on time
will be to the Heat On time.
NOTE: NOTE: Max 2Hrs before start time. If
optimum start is selected, no program time
should be selected to start before 2:00am.
1.1.5OptimumStop
A control system which stops plant operation at the earliest
possible time such that internal conditions will not deteriorate
beyond preset limits by the end of the occupancy period.
• The MC200/V3 keeps a note of how many minutes are
taken for the temperature to drop the number of degrees
entered against this parameter when the heating period
ends. When Optimum Stop is enabled, the MC200/V3
switches off the heating that number of minutes early.
1.1.6TemperatureSensors
The MC200 has an in-built temperature sensor by default.
This can be removed and replaced with a remote sensor if
the controller is outside the area to be heated.
Important: Optional sensors are available
from Powrmatic Ltd. Alternative types must
not be used.
The remote sensor may be either a room (warm air), black
bulb (for radiant) or duct type.
The MC200 internal sensor can also be used in
conjunction with an additional remote sensor which will
give an average of the two temperature readings.
Options are:
• Default internal sensor only
• Remote sensor only
• Internal sensor plus remote sensor
• Remote sensor plus remote sensor
The remote sensor should be sited no further than 100m
from the main unit. Siting of the sensor is important
in that it must be fitted where the temperature will
be generally representative of the area to be heated,
installed 1.7m above floor level and away from draughty
areas or areas subjected to direct heat from sunlight,
radiators etc.
The second 'sensor' input can also accept a volt free
switch input i.e. a volt free switch is connected across
Terminals Com & In2 to facilitate a remote on (BMS) or
remote off.
Heating will be overridden by the switch operation
during programmed heating times. Heating control
returns to normal when the switch reverts, or when the
programmed control period ends.
The switched control does not occur while heating is
turned on due to manual override in non-programmed
times, and does not occur during the manually-selected
extension time at the end of a programmed control
period.
If heating has been manually overridden to be off during a
programmed heating period, the switched control cannot
bring on the heating.
The ‘Heat on’ option means that heat will be turned fully
on by the switch. For high-low burners, the high and low
relays will be on, and for modulating burners, the control
output will be 10v.
Cost logging operates as usual. During these switch
control periods the burn time is recorded at the maximum
rate.
If the sensor goes open-circuit (or either of the sensors
where two are fitted), the Fault LED will flash.
The LCD display will show “sensor failed”.
Important: The earlier MC100 sensor cannot
be used with the MC200/V3 and visa versa.
1.1Introduction