Dyer RZN 4503-T User manual

Dyer Environmental Controls Ltd
RZN 4503-T Troubleshooting Guide
L AZN- AE B
RM
K-T
RT
ZA S
RT 45
Breakglass
2831647
10kΩ
3 2
LT MOT
SD-O 371
Smoke detector
LT 84-U
Wall Switch
10kΩ
5
COM
10kΩ
1k Ω
Fire alarm
interface
Normally
open, volt
free contact.
-R
OR
10kΩresistor - orange band
(from RM “R” & “-” in panel).
1kΩresistor -
red band (from
keyring bag).
10kΩresistor - orange band
(from RT “T” & “-” in panel).
EM 47 K
Orange Black Black
Vent
24v D+H
Mechatronic
drive.
Orange
(High Speed)
White
Brown
Terminal resistor end of line module
(from MOT E, A & B in panel).
Connection point
(local to vent - by
others)
Display fault indications
Battery fault:
• Incorrect connection of the battery.
Earth fault:
• Issue with incoming power supply 230 v earth.
Detector Line fault - Solid:
• Indicates an issue between the control panel and control elements (re alarm interface, smoke detector or
breakglass).
• Each control element requires a single 10kΩ end of line resistor. See above detail.
• If no re alarm interface or smoke detector in system, leave 10kΩ end of line resistor in RM terminals “R” & “-”.
If no RT 45 breakglass, leave 10kΩresistor in RT terminals “T” & “-”.
Detector Line fault - Flashing:
• Indicates line deactivated, press the reset button at top of panel to reactivate.
Drive Group fault:
• Issue between the control panel and the drive(s). Ensure EM 47 K drive group end of line is connected as
indicated above.
• Check 2.5 Amp fuse has not blown.
Terminate all
other coloured
cables in
connection
point.
Display indications
+ + Solid green - System healthy, no faults.
+ +
Solid green, ashing yellow - System healthy, no
fault. Inbuilt service timer expired. Contact Dyer’s
service & maintenance department.
+ + Flashing yellow - System fault. See display fault
indications below.
+ + Solid red - System in re. Alarm open Reset close
Dyer Environmental Controls Ltd, Unit 10, Lawnhurst Trading Estate, Cheadle Heath, Stockport, Cheshire SK3 0SD Page 1 of 2
www.dyerenvironmental.co.uk [phone] Registered in England 02670985 VAT No. 611329279 V1

Dyer Environmental Controls Ltd
Natural ventilation operation (optional)
Only operates when DIP-Switch 8 is on.
Integrated ventilation buttons:
Press to Press to
open vent. Close vent.
Light indicates
vent open.
Operational faults
Fire alarm interface:
• Conrm signal from interface is normally open volt free.
• 1kΩ triggering resistor installed as detailed on previous page.
• 10kΩ end of line resistor installed as detailed on previous page
Smoke detector:
• Ensure the 10kΩ end of line resistor is installed as detailed on previous page.
• Turn smoke detector head clockwise until a click is heard and a physical connection is made between head
and base.
Additional breakglass:
• 10kΩ end of line resistor installed and connections as detailed on previous page.
• Conrm the breakglass terminal connector is rmly secured onto the PCB.
Drive:
• Check MOT terminal connections in the control panel and local connection point.
• Test power supply from terminals A and B in control panel, minimum of 24v DC should be present on operation
(re).
• If voltage is present on operation and connections are correct, the issue is with the drive(s) and not the controls,
see drive information for assistance.
DIP-Switches:
• For operational set-up (including one-touch reset of system and activation of integrated ventilation buttons)
see information on control panel ap.
RZN 4503-T Troubleshooting Guide
Dyer Environmental Controls Ltd, Unit 10, Lawnhurst Trading Estate, Cheadle Heath, Stockport, Cheshire SK3 0SD Page 2 of 2
www.dyerenvironmental.co.uk [phone] Registered in England 02670985 VAT No. 611329279 V1