Wiring Centre Box
Cat. No. TRT049
Operating & Installation Instructions
1. Introduction
The TRT049 is a cost effective and stylish wiring centre, with plenty
of wiring space, and easily accessible terminals. There are cable
clamps to secure incoming and outgoing cables. It is designed for
internal use only. Wiring centres simplify installation and make
checking the circuit easier. This wiring centre is suitable for all
popular heating systems.
Wiring diagrams are supplied for the two most popular, S-plan
and Y-plan.
TRT049 Wiring Centre Rear View
This guide assumes that the installer can identify the required
leads from the boiler, pump and other controls.
The electrical supply must be isolated before removing the
front cover.
TRT049 Wiring Centre Front View
Cover fixing screws Tough plastic enclosure
Fig. 1a
TRT049 Wiring Centre Inside View
12 45
12345
L
N
78
678
9 10111213141516
BM049
MAX CURRENT 10A
230V ~ 50Hz
14 16
EE
Fig. 1
Multiple fixing
holes
Fig. 1b
Cable entry
knock outs
Wiring
terminals
Cable
clamps
Earth
terminals
Contents
2 Port Motorised Valve System (S-Plan)
TRT049 Wiring Centre
5 x wire link
2 x screws
1 x circuit identification label
2 x wall plugs
2. Installation
This product must be installed in accordance with the appropriate
building and wiring regulations.
In all cases if there is a doubt as to how to proceed with an
installation consult a qualified electrician, your local authority’s
building control department or the Timeguard helpline
(020 8450 0515).
Always isolate the mains supply before removing the cover from
the TRT049.
The TRT049 is designed to be surface mounted.
Isolate 230VAC mains supply.
Remove front cover from unit, by undoing the 4 retaining screws.
Fix back plate securely to the wall, using the 2 screws (and wall
plugs) provided. The cable knockouts should be at the bottom.
Remove the required break-offs from the bottom edge or
knock-outs from the rear to accommodate the cables (a mixture
of rear and bottom entries can be used if appropriate).
Allow sufficient excess cable to wire up the unit, but not too much
to make it difficult to close the cover.
Connect the conductors to the relevant terminal, according to the
wiring diagrams below.
If earth continuity is required, please use the earth terminals on the
right hand side.
Restore mains to the unit after checking all system wiring is
complete and replacing cover.
Note: Links shown
should be made by
the installer
WIRING CENTRE TRT049
N
Room Thermostat
Models TRT030
TRT031/32
TRT033
TRT035
1 14
HWC
(NC)
2
HWS
(NO)
Cylinder Thermostat
Model TRT044
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
2
LSL
3
N
Neutral not
15
C
A/C Mains in
(5 Amp fuse)
required on
TRT033 and TRT035
E
E
E
L
E
E
NNN
E
E
N
L N
13
E
E
N
12
E
N
E
Yellow/Green
N
Blue (N)
4
Brown (L)
Boiler Pump
L N
6
Orange CH Call (C)
10 9
11
N
7
Grey HW (NO)
CH Motorised Valve
11 12
CH
HW
CH
HW
N L 1 2 3 4
Brown (L)
Orange CH Call (C)
8
6
N L SL
ON
ON
OFF
OFF
E
Grey HW (NO)
Yellow/Green
7
E
Optional Frost Stat
Model TRT031
Blue (N)
N
Programmer
Models: TRT034
TRT036
HW Motorised Valve
3 Port Motorised Valve System (Y-Plan)
E
E
N
L N
13
E
E
N
12
Boiler Pump
L N
Cylinder Thermostat
Model TRT044
Note: Links shown
should be made by
the installer
HWC
HWS
(NC)
(NO)
15
E
1 14
C
216
E
E
E
E
5. Specifications
Current rating: 10 A
Voltage: 230V, 50Hz
Operating temperature range: 0ºC to 50ºC
11 12
N L SL
Optional Frost Stat
Model TRT031
CH
ON
HW
10 9
11 8
N
ON
CH
OFF
HW
OFF
N L 1 2 3 4
E
Programmer
Models: TRT034
TRT036
Complies with: BS EN 60730
Conforms to directives: 73-23-EEC, 89-336-EEC
WIRING CENTRE TRT049
N
Room Thermostat
Models TRT030
TRT031/32
TRT033
TRT035
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
L
A/C Mains in
(5 Amp fuse)
NNN
N
E
N
7
6
4
2
LSL
3
N
Neutral not
required on
TRT033 and TRT035
E
Blue (N)
Brown (L)
Yellow/Green
Orange CH Call (C)
Grey HW (NO)
Motorised Valve
For assistance with the product please contact:-
HELPLINE
020-8450-0515
or email helpline@timeguard.com
3 Year Guarantee
In the unlikely event of this product becoming
faulty due to defective material or manufacture
within 3 years of the date of purchase, please
return it to your supplier in the first year with proof
of purchase and it will be replaced free of charge.
For years 2 and 3 or any difficulty in the first year
telephone the helpline on
020 8450 0515.
For a product brochure please contact:
Timeguard Ltd. Victory Park, 400 Edgware Road,
London NW2 6ND Tel: 020-8452-1112
or email csc@timeguard.com
A Group company
67-058-331
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