D+H RZN 4503-T User manual

D+H UK
D+H UK (DH Mechatronic UK Ltd), Unit 10, Lawnhurst Trading Estate, Cheadle Heath, Stockport, Cheshire SK3 0SD Page 1 of 2
www.dh-partner.co.uk | [phone] | Registered in England 02670985 | VAT No. 611329279 V3
RZN 4503-T Troubleshooting Guide
L AZN- E b
RM
K-T
RT
ZA S
RT 45
Breakglass
2831647
10kΩ
3 2
LT
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
End of line terminal resistor
(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 1/0 Reset button at top of panel to reactivate.
Drive Group fault:
• Issue between the control panel and the drive(s). Ensure EM 47 K end of line terminal resistor is connected as
shown above.
• Check 2.5 Amp fuse has not blown.
Terminate all
other coloured
cables in
connection
point.
a
MOT
RZN 4503-T / RT 45 breakglass display indications
+ + Solid green - System healthy, no faults.
+ + Solid green + ashing yellow - System healthy, no fault. Inbuilt
service timer expired. Contact our service department.
+ + Flashing yellow - System fault. See panel indications below.
+ + Solid green + solid red - System healthy + in re.
+ + Flashing yellow + solid red - System in fault + re. Alarm open Reset close

D+H UK
D+H UK (DH Mechatronic UK Ltd), Unit 10, Lawnhurst Trading Estate, Cheadle Heath, Stockport, Cheshire SK3 0SD Page 2 of 2
www.dh-partner.co.uk | [phone] | Registered in England 02670985 | VAT No. 611329279 V3
Operational faults
Fire alarm interface:
• Conrm signal from interface is normally open volt free.
• 1kΩ triggering resistor and 10kΩ end of line resistor installed as detailed on previous page.
Smoke detector:
• 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 instructions for assistance.
DIP-Switches:
• For operational set-up (including one-touch reset of system and activation of integrated ventilation buttons)
see information on reverse of white control panel board.
Natural ventilation operation (optional)
Only operates when DIP-Switch 8 is on. Integrated ventilation buttons:
RZN 4503-T Troubleshooting Guide
Light indicates
vent open
Press to
close vent
Press to
open vent