Tekmar RDM 040 User manual

1 of 2 Copyright © D 040 -06/99
The tekmar Remote Display Module (RDM) 040 provides the user with a remote interface to any tekmar
control that is tekmar NetTM (tN2) capable. The RDM can be used to view and/or adjust the settings on
the control that it is connected to, or on any Room Temperature Unit (RTU) that may be connected to the
control. The RDM can display any of the system and status indicators visible on the control or RTU. It also
has a built in alarm contact that can be used to trigger an external alarm if either a control or sensor
error occurs.
Installation
STEP ONE REMOVING THE FRONT COVER
Place a screwdriver or similar object into the small slot located in the top
of the RDM. Push the screwdriver against the plastic tab, and pull the top
of the front cover so that it pivots around the bottom edge of the RDM.
STEP TWO MOUNTING THE RDM
The base of the RDM should be securely installed in the desired location.
Mount the RDM directly to the desired location using two #6 - 1”screws.
The screws are inserted through the mounting holes and must be
securely fastened to the desired location. If possible, at least one of the
screws should enter a wall stud or similar surface. If the RDM is to be
mounted to a 2”x 4”electrical box, order an Adaptor Plate 007. This plate
mounts to the electrical box and the RDM will then mount to the plate.
STEP THREE WIRING THE RDM
Run 18 AWG twisted pair or similar wire between the RDM and the control. Insert the wires through the hole provided in the back of
the RDM enclosure and connect them to the Com and the tekmar Net
TM
(TN2) terminals. Do not run the wires parallel to telephone or
power lines as this may interfere with the operation of the RDM. If the RDM wires are located in an area with strong sources of
electromagnetic noise, shielded cable should be used or the wires can be run in a grounded metal conduit.
NOTE: Do not apply power to the RDM. The RDM is to be wired directly to the control. The
connection between the control and the RDM is polarity sensitive. The Com terminal of the RDM
must be connected to the Com terminal of the control and the tekmar Net
TM
(tN2) terminal of the
RDM must be connected to the appropriate terminal of the control. If the wires are reversed, the
display on the RDM will remain blank and the control will display a short circuit error for the tekmar
Net
TM
(tN2) device.
STEP FOUR WIRING A REMOTE ALARM
The RDM comes with a built in alarm contact. This contact will close anytime either a sensor
or control error is detected by the control. The contact will remain closed until the error is
cleared. To clear the error message on the RDM and turn off the alarm relay, refer to the
control Data Brochure. This contact will also close if a Warning in the control is triggered.
However, if a warning is triggered, the alarm contact will only remain closed for 60 seconds.
After 60 seconds, the warning message will continue to be displayed, but the alarm contact
will be shut off. To clear the warning message, the keypad of the RDM must be pressed as
described in the control Data Brochure.
Between terminals 1 and 2, the contact is capable of switching a low voltage signal that is
less than 0.5 Amps. This switch can be used to operate a low voltage alarm device directly,
or it can be used to energize an external relay to trigger a line voltage or high current
alarm device.
STEP FIVE INSTALLING THE FRONT COVER
Align the hinges on the bottom of the front cover with the bottom of the RDM mounting base.
Pivot the front cover around the bottom hinges and push the top against the mounting base
until it snaps firmly in place.
- Data Brochure D 040
06/99
Remote Display Module (RDM) 040
24 V(ac)
1234
Com
tN2
Warning
Low Voltage
Alarm
24 V(ac or dc)
To control
#6 - 1”screws
Installingthefrontcover
ItemMenu
View
1 2
%
1
° F
DHW
Occ
1234
Com
tN2
Warning

Limited Warranty The liability of tekmar Control Systems Ltd. and tekmar
Control Systems, Inc. (“tekmar”) under this warranty is limited. The purchaser,
by taking receipt of the tekmar product (“product”), acknowledges receipt of
the terms of the warranty and acknowledges that it has read and
understands same.
tekmar warrants each tekmar product against defects in workmanship and materi-
als, if the product is installed and used in compliance with tekmar's instructions. The
warranty period is for a period of twenty-four (24) months from the production date
if the product is not installed during that period, or twelve (12) months from the
documented date of installation if installed within twenty-four (24) months from the
production date.
The liability of tekmar under this warranty shall be limited to, at tekmar's sole dis-
cretion: the cost of parts and labor provided by tekmar to repair defects in materials
and/or workmanship of the defective product; or to the exchange of the defective
product for a replacement product; or to the granting of credit limited to the original
cost of the defective product, and such repair, exchange or credit shall be the sole
remedy available from tekmar, and, without limiting the foregoing in any way,
tekmar is not responsible, in contract, tort or strict product liability, for any
other losses, costs, expenses, inconveniences, or damages, whether direct, indi-
rect, special, secondary, incidental or consequential, arising from ownership or use
of the product, or from defects in workmanship or materials, including any liability
for fundamental breach of contract.
This warranty applies only to those products returned to tekmar during the
warranty period. This warranty does not cover the cost of the parts or labor
to remove or transport the defective product, or to reinstall the repaired or
replacement product. Returned products that are not defective are not cov-
ered by this warranty.
This warranty does not apply if the product has been damaged by negligence
by persons other than tekmar, accident, fire, Act of God, abuse or misuse; or
has been damaged by modifications, alterations or attachments made sub-
sequent to purchase which have not been authorized by tekmar; or if the
product was not installed in compliance with tekmar’s instructions and the
local codes and ordinances; or if due to defective installation of the product;
or if the product was not used in compliance with tekmar’s instructions.
This warranty is in lieu of all other warranties, express or implied, which the
Governing Law (being the law of British Columbia) allows parties to contrac-
tually exclude, including, without limitation, warranties of merchantability,
fitness for a particular purpose, durability or description of the product, its
non-infringement of any relevant patents or trademarks, and its compliance
with or non-violation of any applicable environmental, health or safety legis-
lation; the term of any other warranty not hereby contractually excluded is
limited such that it shall not extend beyond twenty-four (24) months from the
production date, to the extent that such limitation is allowed by the Govern-
ing Law.
Product Return Procedure Products that are believed to have defects in work-
manship or materials must be returned, together with a written description of the
defect, to the tekmar representative for that territory. If the address of the repre-
sentative is not known, please request it from tekmar at the telephone number
listed below.
All specifications are subject to change without notice.
Printed in Canada. D 040 -06/99
Product design, software and literature are Copyright © 1999 by:
tekmar Control Systems Ltd. and tekmar Control Systems, Inc.
tekmar Control Systems Ltd., Canada
tekmar Control Systems, Inc., U.S.A.
Head Office: 4611 - 23rd Street
Vernon, B.C. Canada V1T 4K7
Tel. [phone] Fax. [phone]
Web Site: www.tekmarcontrols.com
Control Systems
Remote Display Module (RDM) 040
Literature —D 040
Packaged weight —0.22 lb. (100 g), Enclosure J, white PVC plastic
Dimensions —2-7/8”H x 2-7/8”W x 13/16”D (73 x 73 x 21 mm)
Approvals —CSA NRTL/C, meets DOC & FCC regulations for EMI/RFI.
Ambient conditions —Indoor use only, 32 to 122°F (0 to 50°C), < 90% RH non-
condensing
Power supply —tekmar control; tekmar Net 2 (tN2)
Relay —24 V (ac or dc) 0.5 A, pilot duty 6 VA
2 of 2
Settings
Selecting the Device
The RDM can be used to view and/or adjust any of the settings on either the control or any of the RTU’s connected to the control.
The device that is to be viewed or adjusted is selected as follows:
•Select the Miscellaneous (
Misc ) Menu by pressing the Menu button.
•Press the Item button until the word DEVICE is displayed in the LCD.
•Use the Up and Down buttons to select either the Control (CTRL) or one of the RTU’s (RTU1, RTU2, ...).
Once the device has been selected, the RDM can be used to view and/or adjust the settings of the selected device.
Temperature Units
The RDM is capable of displaying the temperature in either ˚F or ˚C. In order to select the temperature units, press the Menu button
until the Miscellaneous ( Misc ) menu is displayed. Next, press the Item button until the UNITS item is displayed. Then use the Up or
Down button to select the desired units of measure.
Access Levels
The RDM has four access levels that restrict the number of Menus, Items, and Adjustments that can be accessed by the user. The
four access levels are Limited (LTD), User (USER), Installer (INST), and Advanced (ADV).
The access level of the RDM is found in the Miscellaneous (
Misc ) menu. The access level can only be viewed and / or adjusted when
the Lock / Unlock DIP switch of the control that the RDM is connected to is set to the Unlock position. To determine if the RDM’s access
level is currently locked or unlocked, a small segment representing a padlock is viewed in the bottom right hand corner of the display.
Technical Data
ItemMenu
View
1 2
%
1
° F
DHW
Occ
Limited Warranty and Product Return Procedure