Roberts Gorden BZC 100 User manual

© Copyright 2000 Roberts-Gordon 10031600NA Original Issue 08/00
Operation Manual
Roberts-Gordon
1250 William Street
P.O. Box 44
Buffalo, New York 14240-0044
Telephone: [phone]
Fax: [phone]
Toll Free: 800.828.7450
http://www.rg-inc.com
Roberts-Gordon Canada Inc.
241 South Service Road West
Grimsby, Ontario L3M 1Y7 Canada
Telephone: [phone]
Fax: [phone]
Roberts-Gordon
Oxford Street
Bilston, West Midlands WV14 7EG UK
Telephone: [phone]
Fax: [phone]
WARNING
Installation must be done by a electrician qualified
in the installation and service of control systems
for heating equipment.
Improper installation, adjustment, alteration, service
or maintenance can result in death, injury or property
damage. Read the installation and operation
manuals thoroughly before installing or servicing
this equipment.
Installer
Please take the time to read and understand
these instructions prior to any installation.
Installer must give a copy of this manual to the owner.
wner
Keep this manual in a safe place to provide your
serviceman with information should it become
necessary.
ROBERTS GORDON®
CONTROLLER
BZC 100 &
BZC 300

◆◆TABLE OF CONTENTS
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
1.1 What is a ROBERTS GORDON®
BZC Controller . . . . . . . . . . . . . . . . . . . . .1
1.2 General Requirements . . . . . . . . . . . . . . . .1
1.3 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
2. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
2.1 Material Specification . . . . . . . . . . . . . . . . .2
2.2 Electrical Specification . . . . . . . . . . . . . . . .2
2.3 Preset Default Factory Settings . . . . . . . .2
2.4 Keypad Layout . . . . . . . . . . . . . . . . . . . . .2
3. Viewing Screen Displays . . . . . . . . . . . . . . . . . . .4
3.1 Information Screens . . . . . . . . . . . . . . . . .4
3.2 Temperatures Sensed by Zone . . . . . . . . .4
3.3 Hours Run . . . . . . . . . . . . . . . . . . . . . . . . .4
4. Programming Options . . . . . . . . . . . . . . . . . . . . .5
4.1 Correcting Wrong Entries . . . . . . . . . . . . . .5
4.2 Temperature Setting . . . . . . . . . . . . . . . . .5
4.3 Switching Times . . . . . . . . . . . . . . . . . . . .5
4.4 Manual Override Temperature . . . . . . . . . .6
4.5 Manual Override Time . . . . . . . . . . . . . . . .7
4.6 Holiday Periods . . . . . . . . . . . . . . . . . . . . .7
4.7 Change the Current Time and Date . . . . . .7
4.8 Seasonal Time Adjustment . . . . . . . . . . . .8
4.9 How to Clear Memory . . . . . . . . . . . . . . . .8
4.10 Changing the Security Code . . . . . . . . . . .8
4.11 Changing the Override Limits . . . . . . . . . . .9
5. The ROBERTS GORDON®BZC
Controller Warranty . . . . . . . . . . . . . . . . . . . . . . . .11
◆◆TABLE OF FIGURES
Figure 1 Keypad Layout . . . . . . . . . . . . . . . . . . . . .2
Figure 2 ROBERTS GORDON®BZC Controller Quick
Programming Guide . . . . . . . . . . . . . . . . .3
Printed in the U.S.A.
© 2000
All rights reserved. o part of this work covered by the copyrights herein may be reproduced
or copied in any form or by any means - graphic, electronic, or mechanical, including
photocopying, recording, taping or information storage and retrieval systems - without the
written permission of Roberts-Gordon.

◆◆SECTION 1: INTRODUCTION
1.1 WHAT IS A ROBERTS GORDON®BZC
CONTROLLER?
The ROBERTS GORDON®BZC 100 and BZC 300
are micro processor based controllers designed
for the most efficient control of CORAYVAC®,
BLACKHEAT®and CARIBE®heaters.
The ROBERTS GORDON®BZC 300 controller is
capable of giving control outputs from 5 relays, 3
of which afford heating zone control capabilities.
The controller also features 6 inputs which are
used for signal condition monitoring.
The ROBERTS GORDON®BZC 100 controller is
capable of giving control outputs from 3 relays, 1
of which affords heating zone control capabilities.
The controller also features 2 inputs which are
used for signal condition monitoring.
1.2 GENERAL REQUIREMENTS
The ROBERTS GORDON®BZC series of con-
trollers are supplied pre-configured for their appli-
cation and only for use with ROBERTS GORDON®
infrared heating equipment. Failure to comply with
the installation instructions and configuration will
invalidate the limited warranty set out on Page 11,
Section 5 .
Mount the ROBERTS GORDON®BZC Controller
Quick Programming Guide next to the controller
for easy reference of programming steps. See
Page 3, Section 2, Figure 2.
1.3 SAFETY
Your Safety is Important to Us! This sym-
bol is used throughout the manual to noti-
fy you of possible fire, electrical or burn
hazards. Please pay special attention
when reading and following the warnings
in these sections.
For optimum heater performance and safe heating
conditions, inspect and maintain heater(s) before
every heating season and as necessary. Also,
know and maintain heater clearances to com-
bustibles, see heater Installation, Operation and
Service manual for further details. If you require
additional manuals, contact your ROBERTS
GORDON®independent distributor or Roberts-
Gordon at [phone] or [phone] in
the U.S., [phone] in Canada or at www.rg-
inc.com.
1
SECTION 1: INTRODUCTION
WARNING
Installation, Service and Annual Inspection of
controller must be done by an electrician qualified
in the installation of control systems for heating
equipment.
Installation, Service and Annual Inspection must be
done by a contractor qualified in the installation and
service of gas-fired heating equipment.
Read this manual carefully before installation,
operation, or service of this equipment.
Failure to follow these instructions can result in
death, injury or property damage.

2
◆◆SECTION 2: SPECIFICATIONS
2.1 MATERIAL SPECIFICATION
Enclosure Material: ABS (UL 94-5VA Rated)
Weight: 1.6 Kg
Dimensions: 199 x 62 x 290mm
Protection: Rating IP20
2.2 ELECTRICAL SPECIFICATION
Supply: 120 AC 1ph ± 10% 50/60Hz 20A
Relay Outputs: Single pole 4.4A 230V AC.
(resistive)
Battery Back-up: Lithium cell maintains data
memory and time clock for 10
years minimum at 25°C
2.3 PRESET DEFAULT FACTORY SETTINGS
Temperature Settings:
Day Temperature........................20°C
Night Temperature......................04°C
Override Up Temperature ..........02°C
Override Down Temperature ......04°C
Time Settings:
Switching Times ........................NONE
Override Limit ............................8 hours
Maximum Pre-heat Hours ..........3 hours
Date Format ..............................dd/mm/yy
Optional Settings:
HILO Switching Differential ........0°C
Security Codes:
Operators ..................................0000
2.4 KEYPAD LAYOUT
1. LCD Readout
2. Increase Temperature Set Point
3. Decrease Temperature Set Point
4. Enter Information
5. Delete
6. Scroll Forward
7. Return to Run Mode
8. Enter Program Mode
9. Time Override a Zone
ROBERTS GORDON®BZC 100 AND BZC 300 OPERATION MANUAL
FIGURE 1 - Keypad Layout (BZC 300 and BZC 100 have the same keypad layout)
1
6
5
4
2
3
789

SECTION 2: SPECIFICATIONS
3
BZC Controller Quick Programming Guide
Read each section carefully before following the programming instructions.
®
Roberts-Gordon
1250 William Street, PO Box 44, Buffalo, NY, 14240-0044, USA.
Tel: [phone] Fax: [phone] Toll Free: 800.828.7450
©
Roberts-Gordon Canada Inc.
241South Service Road West, Grimsby, Ontario, L3M 1Y7, Canada.
Tel: [phone] Fax: [phone] Toll Free: 800.663.9025
Printed in the U.S.A www.rg-inc.com
Roberts-Gordon
Oxford Street, Bilston, West Midlands WV14 7EG UK
Tel: +(44) 1902 494425 Fax: +(44) 1902 403200
P/N 10001600
1. DAY and NIGHT Temperature Settings
1.1 From the Normal (Run) Mode.
1.2 Press PROG.Enter the Operators Code 0000 - Press ENTER.
1.3 Choose 1 for Data.
1.4 Enter the Zone Number you wish to alter.
1.5 Enter the required DAY temperature (in degrees C or F as
prompted). Enter new temperature using the numeric key-
pad - Press ENTER.
1.6 Enter the required NIGHT temperature (in degrees C or F as
prompted). Enter new temperature using the numeric key
pad - Press ENTER.
1.7 The screen will now display switching times. If you wish to
alter switching times, go to 2.6.
1.8 To accept the settings entered and exit the programming
mode, press RUN to return to the menu.
1.9 Press RUN again to return to the Normal (Run) Mode.
2. Switching Times
2.1 From the Normal (Run) Mode.
2.2 Press PROG.Enter the Operators Code 0000 - Press ENTER.
2.3 Choose 1 for Data.
2.4 Enter the zone number you wish to alter.
2.5 Accept DAY and NIGHT temperatures by pressing ENTER
(refer to 1.5 if you wish to alter the temperatures).
Note: Each zone must be programmed individually for up to four
ON/OFF periods per day. Each period is defined by START
and END times.
24 hour clock must be used throughout.
To set 1 time period only.
2.6 Enter the Start Time for period 1. e.g. 08:00 - Press ENTER.
2.7 Enter the End Time for period 1. e.g. 17:00 - Press ENTER.
2.8 Unused periods must display start: 00.00 end: 00.00.
2.9 Periods 1 to 4 programmed for Monday can be copied to
Tuesday by pressing the PROG key when Tuesday period 1
is displayed. This can be repeated for each subsequent day.
2.10 To accept the settings entered and to return to the Data
Menu at any point, press RUN.
2.11 Press RUN again to return to the Normal (Run) Mode.
3. Override Time
3.1 From the Normal (Run) Mode.
3.2 Press the OVERRIDE key to enter the Override program.
Enter a security code if required.
3.3 Enter the zone you wish to put into an Override.
3.4 Select 1 ON or 2 OFF.
Note: 1) ON - heating in the zone will operate to the required
DAY temperature.
2) OFF- heating in the zone will be in the NIGHT set back
condition.
3.5 Enter the number of hours you wish to override. e.g. :01
The preset maximum number of hours is displayed in brack-
ets.
3.6 Press ENTER.
3.7 When selection is complete, scrolling to the next screen
(using the scroll key) in run mode will activate the override.
3.8 To end override before the set time is reached, repeat steps
3.1 to 3.5 and set the override Period to :00.
4.Override Temperature
4.1 From the Normal (Run) Mode.
4.2 Pressing the UP and DOWN ARROW KEYS allows you to
increase or decrease the set point for any given zone within
pre-set limits.
5. Current Time and Date
5.1 From the Normal (Run) Mode.
5.2 Press PROG.Enter the Operators Code 0000 - Press ENTER.
5.3 Choose 2 for Time.
5.4 Select the required date format. Press ENTER to accept this
setting.
5.5 The current time will be displayed. Enter a new time, using
24 hour clock notation.
5.6 Press ENTER.
5.7 The current Date will be displayed. Enter a new date using
the format selected.
5.8 Press ENTER. The Control will be returned to the Data
Menu.
5.9 Press RUN to return to the Normal (Run) Mode.
6.Daylight Savings Time Adjustment
6.1 From the Normal (Run) Mode.
6.2 When adjustment is required depress the “1” key for a
period of 5 seconds. Adjustment will be made automatically.
7. Holiday Periods
7.1 From the Normal (Run) Mode.
7.2 Press PROG.Enter the Operators Code 0000 - Press ENTER.
7.3 Choose 4 for Holidays.
The control can be programmed for 5 holiday periods.
7.4 Enter a start date. Enter a date using the date format
selected (e.g. dd/mm/yy or mm/dd/yy) - Press ENTER.
7.5 Enter the length in number of days. e.g. 05. - Press ENTER.
7.6 Repeat this for each holiday period to be set.
7.7 The Control will be returned to the Data Menu.
7.8 Press RUN to return to the Normal (Run) Mode.
Note: During the holiday period all the zones will operate at
NIGHT set back temperature.
8. Further Information
Further Programming and set up instructions can be found in the
Operation and installation manuals listed below:
8.1 North America 120V
ROBERTS GORDON®BZC Controllers:
Part Number Manual
10011601NA 100 Installation and Service manual
10031600NA 300/100 Operation manual
10031601NA 300 Installation and Service manual
10071600NA 700 Operation manual
10071601NA 700 Installation and Service manual
8.2 Europe 230V
ROBERTS GORDON®BZC Controllers:
Part Number Manual
10011600UK 100 Operation manual
10011601UK 100 Installation and Service manual
10031600UK 300 Operation manual
10031601UK 300 Installation and Service manual
10071600UK 700 Operation manual
10071601UK 700 Installation and Service manual
FIGURE 2 - ROBERTS GORDON®BZC Controller Quick Programming Guide

◆◆SECTION 3: VIEWING SCREEN DISPLAYS
In Normal (Run) Mode, the following options are
available without the entry of a security code:
3.1 INFORMATION SCREENS
Pressing the SCROLL key will enable you to scroll
through the zones one by one. The following
screens will be displayed:
STATUS
ZONE INFORMATION
In Normal (Run) Mode, the following options are
available with the entry of a security code:
3.2 TEMPERATURES SENSED BY ZONE
FOR 24 HOUR PERIOD
Press PROG and enter the code 0376.
Press ENTER.
The screen will now show:
By selecting 4, the status and recorded tempera-
ture for zone 1 can be viewed for a 24 hour period
in 15 minute intervals.
The screen will now show:
Use the ENTER key to view the incremental infor-
mation recorded.
Press RUN to return to menu and press RUN
again to return to Normal (Run) Mode.
3.3 HOURS RUN
Press PROG and enter the code 0376.
Press ENTER.
The screen will now show:
By selecting 1, the running hours for the previous
weeks for zone 1 can be viewed.
Press ENTER to return to selection screen. To
view another zone, repeat the steps above.
Press RUN to return to menu and press RUN
again to return to Normal (Run) Mode.
1) R1 2) R2 3) R3
4) S1 5) S2 6) S3
1) R1 2) R2 3) R3
4) S1 5) S2 6) S3
4
ROBERTS GORDON®BZC 100 AND BZC 300 OPERATION MANUAL
Day Date
MON 24-05-10
14.52.00 D D D
Time Status
Required Actual
Zone Title Zone Temp Zone Temp
ZONE1 (16) :15
HEAT ON
Heating
ON/OFF
Week #
WEEK 04
HOURS RUN 25.08
# running hours
Time Temperature
00.00 14
HEAT OFF NIGHT
Heating Status Time Status

SECTION 4: PROGRAMMING OPTIONS
◆◆SECTION 4: PROGRAMMING OPTIONS
The following instructions cover the programming
options for normal daily use. Please consult the
ROBERTS GORDON®BZC 300 or BZC 100
Controller Installation Manual for initial set up
information.
Zone choices, when displayed, only apply to
the ROBERTS GORDON®BZC 300 Controller.
Because the ROBERTS GORDON® BZC 100
Controller is a single zone controller, no selec-
tion is necessary.
4.1 CORRECTING WRONG ENTRIES
4.1.1 If a wrong entry is made during the programming
sequence, continue following the instructions until
the prompt returns to the menu.
4.1.2 The entry can be corrected by repeating the pro-
gramming sequence from the beginning.
4.1.3 Skip each correct screen by pressing ENTER.
4.1.4 When the incorrect entry is reached, type in the
correct entry and press ENTER. Continue press-
ing ENTER to skip any following correct screens
until the instructions direct you to return to the
menu screen.
4.2 TEMPERATURE SETTING
There are two temperature settings for each zone.
One setting is for the DAY temperature. This will
be the set point temperature when the switching
time is ON. One setting is for the NIGHT tempera-
ture. This will be the set point temperature when
the switching time is OFF.
Default Temperature Settings:
Day Temperature 20°C
Night Temperature 04°C
4.2.1 Press PROG and enter the code 0000.
Press ENTER.
Enter 1 for DATA.
Enter the zone number you wish to alter.
Each zone can have individual time and tempera-
ture settings, therefore this procedure must be
repeated for each zone to be altered.
4.2.2 The screen will now show:
Press two digits for the required temperature and
then press ENTER.
4.2.3 The screen will now show:
Press two digits for the required temperature and
then press ENTER.
4.2.4 The screen will now display switching times. If you
wish to alter switching times, go to
Page 5,
Section 4.3.2 .
4.2.5 To accept the settings and return to the DATA
menu, press RUN.
4.2.6 To alter the set points for further zones, repeat the
steps on
Page 5, Sections 4.2.1 to 4.2.3 .
4.2.7 If any mistakes were made during the program-
ming sequence, see Page 5, Section 4.1 for cor-
rective action.
When all the zones are correctly programmed,
return to Normal (Run) Mode by pressing RUN.
4.3 SWITCHING TIMES
4.3.1 Press PROG and enter the code 0000.
Press ENTER.
Enter 1 for DATA.
Enter the zone number you wish to alter.
Press ENTER to accept DAY and NIGHT temper-
atures. To alter the temperatures, see
Page 5,
Section 4.2 .
4.3.2 The screen will now show:
Enter required switching times for Monday period
1.
There are four switching periods per day for each
individual zone.
4.3.3 The following example allows for one switching
period per day.
Monday to Friday START 08:00 END 17:00
Saturday START 08:00 END 12:00
Sunday NO SWITCHING PERIOD
4.3.4 The screen will now show:
Enter start time 0800.
DAY PERIOD 1 MON
S:00.00 E:00.00
ENTER THE REQUIRED
NIGHT TEMP. : 04
ENTER THE REQUIRED
DAY TEMP. : 20
5
DAY PERIOD 1 MON
S:00.00 E:00.00

6
Use 24 hour clock notation for the start of DAY
TEMPERATURE (mistakes may be rectified by
pressing DEL) and then press ENTER.
NOTE: When entering a start time, it is not necessary to
allow a warm-up period prior to the start of the
required day temperature. This is automatically
calculated by the ROBERTS GORDON®BZC 300
or BZC 100 Controller giving the required temper-
ature at the time set.
4.3.5 The screen will now show:
Enter end time 1700.
The screen will now show:
Press ENTER.
4.3.6 The screen will now show:
Press ENTER, to skip without altering the setting.
The reason for leaving the start and end times
blank is because in this example we are only using
one switching period per day.
Repeat as above for periods 3 and 4 for Monday.
4.3.7 The screen will now show:
Pressing the PROG key at this point will copy all of
Monday’s switching times to Tuesday.
4.3.8 The screen will now show:
Pressing the PROG key at this point will copy the
times from Tuesday to Wednesday. Repeat this for
Thursday and Friday.
4.3.9 The screen will now show:
For Saturday, the switching period is different from
the weekday settings. The new settings must be
entered.
Enter start time 0800, Press ENTER.
The screen will now show:
Enter end time 1200.
The screen will now show:
Press ENTER.
Leave the start and end times blank for periods 2,
3 and 4 because in this example we are only using
one switching period on Saturday.
As no switching times are required for Sunday, press
RUN to save the settings and return to the menu.
The process described above must now be
repeated for each heating zone to be altered.
4.3.10 If any mistakes were made during the program-
ming sequence, see
Page 5, Section 4.1 for cor-
rective action.
4.3.11 Press RUN to return to Normal (Run) Mode.
NOTE: If remote time enable is to be used, leave all
switching periods set to 00.00.
4.4 MANUAL OVERRIDE TEMPERATURE
4.4.1 To manually override temperature, first use the
SCROLL key to display the zone you wish to alter.
Example for zone 1 is shown below:
The set point temperature appears in the brackets.
4.4.2 Pressing the UP(3) and DOWN(7) arrow keys will
increase or decrease the set point (in increments
of 1O) for the displayed zone within pre-set limits.
NOTE: Changing the set point for the daytime tempera-
ZONE1 (20) :17
HEAT ON
DAY PERIOD 1 SAT
S:08.00 E:12.00
DAY PERIOD 1 SAT
S:08.00 E:00.00
DAY PERIOD 1 SAT
S:00.00 E:00.00
DAY PERIOD 1 WED
S:00.00 E:00.00
DAY PERIOD 1 TUE
S:00.00 E:00.00
DAY PERIOD 2 MON
S:00.00 E:00.00
DAY PERIOD 1 MON
S:08.00 E:17.00
DAY PERIOD 1 MON
S:08.00 E:00.00
ROBERTS GORDON®BZC 100 AND BZC 300 OPERATION MANUAL

ture manually will only apply to the current switch-
ing period.
4.5 MANUAL OVERRIDE TIME
4.5.1 From the Normal (Run) Mode, press the OVER-
RIDE key to enter the override program. Enter a
security code if prompted.
Override will allow the heating system to be
switched to day or night mode manually.
4.5.2 The screen will now show:
Select the zone required to be overridden.
4.5.3 The screen will now show:
Press 1 to select on (day settings) or 2 to select off
(night settings).
4.5.4 The screen will now show:
Enter the number of hours you wish to override the
zone for example :01.
The number in brackets is the maximum number in
hours of the override period. This figure is preset
and can only be altered by an authorized user.
4.5.5 The DEL key may be used to correct mistakes,
press ENTER when correct. The override time
remaining will intermittenly appear on the screen.
4.5.6 When selection is complete, scrolling to the next
screen in run mode will activate the override com-
mand.
4.5.7 To end override before the set time is reached, re-
enter override mode and set the override period to
:00.
4.6 HOLIDAY PERIODS
4.6.1 From the Normal (Run) Mode:
Press PROG and enter the code 0000.
Press ENTER.
Enter 4 for HOLS.
Five periods can be preset by entering the start
date and then the number of days the holiday
lasts.
4.6.2 The screen will now show:
Enter the date in the format selected under the
time function (dd-mm-yy or mm-dd-yy).
Enter length (number of days duration of holiday).
4.6.3 The DEL key may be used to correct mistakes.
Press ENTER when correct.
4.6.4 If any mistakes were made during the program-
ming sequence, see
Page 5, Section 4.1 for cor-
rective action.
4.6.5 Press RUN to return to Normal (Run) Mode.
NOTE: If ENTER is pressed at any display, then the cur-
rent setting will be retained.
NOTE: To cancel a holiday period in progress, repeat
4.6.1 to 4.6.3 changing the period in progress to
00 length.
4.7 CHANGE THE CURRENT TIME AND DATE
4.7.1 Press PROG and enter the code 0000.
Press ENTER.
Enter 2 for TIME.
4.7.2 The screen will now show:
Press ENTER to leave the date format at the
default day/month/year.
4.7.3 The screen will now show:
Enter a new time in (Hours: Minutes) in 24 hour
clock notation.
Mistakes may be rectified by pressing DEL.
Press ENTER when new time is correct.
TIME IS : 14.15
NEW TIME : .
DATE? D-M-Y (00)
M-D-Y (01) :00
HOLIDAY PERIOD 1
S: 00-00-00 L: 00
ENTER OVERRIDE
(08 HRS MAX) :00
OVERRIDE TO
1) ON OR 2) OFF
ENTER THE ZONE
NUMBER (1 - 3)
7
SECTION 4: PROGRAMMING OPTIONS

4.7.4 The screen will now show:
Dates must be entered in the format selected. See
Page 8, Section 4.8.2 . Press ENTER.
4.7.5 The screen will now show:
Enter the appropriate number for the current day.
Press ENTER when correct and the display will
return to the Set-Up Menu.
4.7.6 Press RUN to return to Normal (Run) Mode.
If any mistakes were made during the program-
ming sequence, see
Page 5, Section 4.1 for cor-
rective action.
4.8 SEASONAL TIME ADJUSTMENT
4.8.1 Pressing the number one button and holding it
down for 5 seconds during the months of March or
April and October will give automatic seasonal cor-
rection.
4.9 HOW TO CLEAR MEMORY
This facility will clear the logs of the hours run and
monitor data.
4.9.1 Press PROG and enter the code 1805.
Press ENTER.
Enter 4 for C.LOG
4.9.2 The screen will now show:
Press 1 for CLEAR MONITOR.
Press the DEL key and a prompt for the passcode
will appear. Pressing any other key will abort the
process.
4.9.3 The screen will now show:
Enter the code 0376 and press ENTER.
4.9.4 Press RUN to return to Normal (Run) Mode.
4.10 CHANGING THE SECURITY CODE
4.10.1 Press PROG and enter the code 0000.
Press ENTER.
Enter 3 for CODE.
4.10.2 This is the section used to set the security code.
The screen will now show:
Pressing '1' will allow you to change the Manager
Code
(Page 8, Section 4.10.3) for programming
the unit. Pressing '2' will allow you to change
Override Code
(Page 8, Section 4.10.5) .
4.10.3 Manager Code
The screen will now show:
Enter 4 digits for the new code (only asterisks will
be shown when entering code).
4.10.4 Press RUN to return to Normal (Run) Mode.
4.10.5 Override Code
The screen will now show:
Selecting '00' here will allow you to override the
time without needing a code. Selecting '01' will not
allow you to override the time without knowing the
security code.
4.10.6 Enter a new four digit code.
4.10.7 Press RUN to return to Normal (Run) Mode.
NOTE: In the event that the code is forgotten, contact your
ROBERTS GORDON®independent distributor or
Roberts-Gordon at [phone] or (800) 828-
7450 in the U.S., [phone] in Canada or at
www.rg-inc.com.
O/R CODE NO (00)
Y (01) SP(02) :00
CODE IS :0000
NEW CODE :
1) MANAGER CODE
2) OVERRIDE CODE
ENTER CODE TO
CONTINUE : 0376
1) CLEAR MONITOR
2) VIEW CONFIG
ENTER DAY 01 = MON
07 = SUN :01
DATE IS :03-15-10
NEW ONE : - -
8
ROBERTS GORDON®BZC 100 AND BZC 300 OPERATION MANUAL

SECTION 4: PROGRAMMING OPTIONS
9
4.11 CHANGING THE OVERRIDE LIMITS
4.11.1 Press PROG and enter the code 1805.
Press ENTER.
Enter 1 for DATA.
4.11.2 These are the settings for limit of the override for
both time and temperature.
The screen will now show:
Press ENTER to skip the calibration screens.
There will be one displayed for each zone. The
calibration of the sensors will be conducted by
installer.
4.11.3 The screen will now show:
The default maximum override of 8 hours is dis-
played. To alter the number, enter the new number
and press ENTER.
4.11.4 The screen will now show:
The default upper offset limit of 2OC is displayed.
To alter the number, enter the new number and
press ENTER.
4.11.5 The screen will now show:
The default upper offset limit of 18OF or 5OC is dis-
played. To alter the number, enter the new number
and press ENTER.
4.11.6 If any mistakes were made during the program-
ming sequence, see
Page 5, Section 4.1 for cor-
rective action.
4.11.7 At the prompt for a zone to alter, press RUN to
return to the menu.
4.11.8 Press RUN again to return to Normal (Run) Mode
from the menu.
ENTER LOWER TEMP
OFFSET LIMIT : 05
ENTER UPPER TEMP
OFFSET LIMIT : 02
ENTER MAXIMUM
OVERRIDE :08
CALIBRATION NO.1
SETTING :00

11
◆◆SECTION 5: THE ROBERTS GORDON®BZC
CONTROLLER WARRANTY
ROBERTS-GORDON WILL PAY FOR:
For 36 months from the date of purchase by the original
consumer or 42 months from date of shipment by Roberts-
Gordon, whichever occurs first: we will provide, free of
charge, replacement parts for any part of the ROBERTS
GORDON®BZC Controller that fails because of a manufac-
turing or material defect.
ROBERTS GORDON®replacement parts are warrantied for
the period of the original ROBERTS GORDON®BZC
Controller Warranty.
ROBERTS-GORDON WILL NOT PAY FOR:
Service trips, service calls and labor charges.
Shipment of replacement parts.
Damage due to:
Failure to install, operate or maintain the ROBERTS
GORDON®BZC Controller as directed in the Installation
and Operation Manuals. You must follow requirements
printed in these manuals.
Misuse, abuse, neglect or modification of the
ROBERTS GORDON®BZC Controller in any way.
Improper service, use of replacement parts or acces-
sories that are not specified by Roberts-Gordon.
Improper installation, or any relocation of the
ROBERTS GORDON®BZC Controller after initial instal-
lation.
Incorrect supply, accident, fire, flood, acts of God or
other casualty.
Use of the ROBERTS GORDON®BZC Controller for
other than its intended purpose.
Use of the ROBERTS GORDON®BZC Controller in a
corrosive atmosphere or any atmosphere containing
contaminants.
Shipping. Claim must be filed with carrier.
WARRANTY IS VOID IF:
The ROBERTS GORDON®BZC Controller is not installed
by a electrician qualified in the installation of control sys-
tems for heating equipment.
You cannot prove original purchase date and required
annual maintenance history.
The data plate and/or serial number are removed, defaced,
modified or altered in any way.
The ROBERTS GORDON®BZC Controller is transferred.
This warranty is nontransferable.
Roberts-Gordon is not permitted to inspect the damaged
ROBERTS GORDON®BZC Controller and/or component
parts.
READ YOUR INSTALLATION MANUAL
If you have questions about your ROBERTS GORDON®
BZC Controller, contact your installing professional. Should
you need replacement parts or have additional questions,
call or write Roberts-Gordon:
U.S.A.
1250 William Street
P.O. Box 44
Buffalo, New York 14240-0044
Telephone: [phone]
Fax: [phone]
Canada
241 South Service Road, West
Grimsby, Ontario L3M 1Y7
Telephone: [phone]
Fax: [phone]
On the web at:
www.rg-inc.com
Roberts-Gordon's liability, and your exclusive remedy,
under this warranty or any implied warranty (including
the implied warranties of merchantability and fitness
for a particular purpose) is limited to providing replace-
ment parts during the term of this warranty. Some juris-
dictions do not allow limitations on how long an implied war-
ranty lasts, so this limitation may not apply to you. There are
no rights, warranties or conditions, expressed or implied,
statutory or otherwise, other than those contained in this
warranty.
Roberts-Gordon shall in no event be responsible for
incidental or consequential damages or incur liability
for damages in excess of the amount paid by you for
the ROBERTS GORDON®BZC Controller. Some jurisdic-
tions do not allow the exclusion or limitation of incidental or
consequential damages, so this limitation or exclusion may
not apply to you. This warranty gives you specific legal
rights, and you may also have other rights which vary from
jurisdiction to jurisdiction.
Roberts-Gordon shall not be responsible for failure to per-
form under the terms of this warranty if caused by circum-
stances out of its control, including but not limited to fire,
flood, strike, government or court orders, unavailability of
supplies, parts or power. No person is authorized to assume
for Roberts-Gordon any other warranty, obligation or liabili-
ty.
LIMITATIONS ON AUTHORITY OF REPRESENTATIVES:
No representative of Roberts-Gordon, other than an
Executive Officer, has authority to change or extend these
provisions. Changes or extensions shall be binding only if
confirmed in writing by Roberts-Gordon's duly authorized
Executive Officer.
SECTION 5: THE ROBERTS GORDON®BZC CONTROLLER WARRANTY