Dyer RZN 4503-T Troubleshooting Manual

Dyer Environmental Controls Ltd
RZN 4503-T Troubleshooting Guide
10kΩ resistor - orange band
1kΩ resistor -
red band (from
(from RM "R" & "-" in panel).
keyring bag).
Fire alarm SD-O 371
interface Smoke Detector
Normally
open, volt
free contact.
10kΩ
OR
3 2

Display indications

Solid green - System healthy, no faults.
+ +
Solid green, flashing 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 fire.
+ +

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 (fire alarm interface, smoke detector or
breakglass).
• Each control element requires a single 10kΩ end of line resistor. See above detail.
• If no fire alarm interface or smoke detector in system, leave 10kΩ end of line resistor in RM terminals "R" & "-".
If no RT 45 breakglass, leave 10kΩ resistor 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.
Dyer Environmental Controls Ltd, Unit 10, Lawnhurst Trading Estate, Cheadle Heath, Stockport, Cheshire SK3 0SD
www.dyerenvironmental.co.uk
10kΩ resistor - orange band
(from RT "T" & "-" in panel).
RT 45
Breakglass
5
2 8 3 1
10kΩ
R - T - K
RT
RM
+44 (0)161 491 4840
6 4 7
A Z S L
Registered in England 02670985
Terminal resistor end of line module
(from MOT E, A & B in panel).
LT 84-U Connection point
Wall Switch
(local to vent - by
others)
EM 47 K
COM
N- Z A E
LT MOT
Alarm open
VAT No. 611329279
Vent
Orange
24v D+H
(High Speed)
Mechatronic
White
drive.
Brown
Terminate all
other coloured
cables in
connection
point.
A B
Reset close
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