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3RM/24VAC Installation Instructions TG200647 Issue 3, 27-Mar-2015.
Installation Instructions - Mounting
3RM/24VAC
Three Relay Module (24 Vac/dc)
Important: Retain these instructions
These instructions shall be used by trained service
personnel only.
If the equipment is used in a manner not
speci ed by these instructions, the protection provided by the
equipment may be impaired.
https://partners.trendcontrols.com
1
Dimensions
2
Requirements
3 INSTALLATION
1 BOX CONTENTS 2 STORING
It is recommended that the installation should comply
with the local electrical safety installation practices (e.g.
HSE Memorandum of Guidance on Electricity at Work
Regulations 1989, USA National Electric Code).
CONTENTS
1 Unpacking .....................................................................1
2 Storing ...........................................................................1
3 Installation .....................................................................1
3.1 Installation - Mounting ...................................................1
4 Disposal .........................................................................4
3.1 Installation - Mounting
HO
2
+70°C
(+158°F)
0
-10°C
(-14°F)
95%RH
3RM/24VAC
Installation Instruction
(TG200647)
48 mm (1.89”)
68 mm (2.68”)
77 mm (3.03”)
13 mm (0.51”)
IN
0V
24V
AUTO ON OFF AUTO ON OFF
H
T
J2
J1
FAN/LOW
COOL/MID
RL1
RL2
NO
NC C
NO
NC C
HEAT/HIGH
RL3
NO
NC C
AUTO ON OFF
J3
-10 °C
(14 °F)
+50 °C
(122 °F)
HO
2
0 %RH 90 %RH
IN
0V
24V
AUTO ON OFF AUTO ON OFF
H
T
J2
J1
FAN/LOW
COOL/MID
RL1
RL2
NO
NC C
NO
NC C
HEAT/HIGH
RL3
NO
NC C
AUTO ON OFF
J3
IN
0V
24V
AUTO ON OFF AUTO ON OFF
H
T
J2
J1
FAN/LOW
COOL/MID
RL1
RL2
NO
NC C
NO
NC C
HEAT/HIGH
RL3
NO
NC C
AUTO ON OFF
J3
The module must be installed in an enclosure conforming to EN61010-1.
IN
0V
24V
AUTO ON OFF AUTO ON OFF
H
T
J2
J1
FAN/LOW
COOL/MID
RL1
RL2
NO
NC C
NO
NC C
HEAT/HIGH
RL3
NO
NC C
AUTO ON OFF
J3
!
83 mm (3.23”)
2 3RM/24VAC Installation Instructions TG200647 Issue 3, 27-Mar-2015. .
3RM/24VAC Installation Instructions - Mounting
3
Mount on DIN Rail
4
Specify Operating Mode
6
Switch Off Controller
5
Set AUTO/ON/OFF links to AUTO
7
Ensure IQ Output Channels are
Analogue set to Voltage V
3.1 Installation - Mounting (continued)
O
I
IN
0V
24V
AUTO ON OFF AUTO ON OFF
H
T
J2
J1
FAN/LOW
COOL/MID
RL1
RL2
NO
NC C
NO
NC C
HEAT/HIGH
RL3
NO
NC C
AUTO ON OFF
J3
H
T
H
T
Fan/Heat/Cool
HCM
3 Stage Sequence
(or binary switching)
TRM
IN
0V
24V
AUTO ON OFF AUTO ON OFF
H
T
J2
J1
FAN/LOW
COOL/MID
RL1
RL2
NO
NC C
NO
NC C
HEAT/HIGH
RL3
NO
NC C
AUTO ON OFF
J3
FAN/LOW
HEAT/HIGH
Note that each link may be
replaced by a three position
(SPDT) switch which will normally
be centre off; this would be wired
as adjacent diagram (see note
step 15).
COOL/MID
24 V
0 V
OUT
IQ
V
IQ Controller
Installation Instructions
3RM/24VAC Installation Instructions TG200647 Issue 3, 27-Mar-2015.
Installation Instructions - Mounting 3RM/24VAC
8
Wire Module to Controller
10
Connect module to HVAC
Equipment9
Ensure HVAC Equipment Power
Supplies are switched off
3.1 Installation - Mounting (continued)
WARNING: The wires may be connected to
hazardous voltages. Disconnect
power before attempting any wiring.
IN
0V
24V
AUTO ON OFF AUTO ON OFF
H
T
J2
J1
FAN/LOW
COOL/MID
RL1
RL2
NO
NC C
NO
NC C
HEAT/HIGH
RL3
NO
NC C
AUTO ON OFF
J3
IQ
3RM
24 V
0 V
OUT
0 V
IN
24 V
24 V loop
3RM
XRM
XRM
24 V loop
Cable size 0.5 to 2.5 mm2
(20 to 14 AWG), Cu only
IQ
3RM
24 V
0 V
OUT
0 V
IN
24 V
24 Vac/dcPSU
or using external 24 Vac/dc supply
Note that external 24 V
supply should be isolated
or earthed (grounded)
to IQ earth (ground);
ensure correct polarity
maximum current consumed from supply:
24 Vac 100 mA, 24 Vdc 45 mA
24 V loop
24 V
3RM
Power Supply
Input power
supply
Equipment
either using IQ 24 Vdc Auxiliary Supply
if TRM or HCM (see step 4)
3RM
Power Supply
Rly 2
Rly 1
C
NO
NC
C
NO
NC
C
NO
NC
Rly 3
Heat/High
Cool/Mid
Fan/Low
Equipment
3/Heat
Equipment
2/Cool
Equipment
1/Fan
Equipment
Input power
IN
0V
24V
AUTO ON OFF AUTO ON OFF
H
T
J2
J1
FAN/LOW
COOL/MID
RL1
RL2
NO
NC C
NO
NC C
HEAT/HIGH
RL3
NO
NC C
AUTO ON OFF
J3
if Binary Switching (TRM) (see step 4)
3RM
Rly 2
Rly 1
C
NO
NC
C
NO
NC
Cable size 0.5 to 2.5 mm
2
(20 to 14 AWG), CU only
C
NO
NC
Rly 3
Equipment
1
Equipment
2
Power Supply
Equipment
Input power
To meet safety requirements, for
the 3 relays (OUT1, OUT2 and
OUT3), those being used must all
be switching either low voltage or
mains and not a mixture of voltages.
If switching mains, they must all
switch the same phase and polarity.
!
Arc suppression
recommended
Relay Output Arc
Suppression Installation
Instructions (TG200208)
Contact ratings:
5 A @ 240 Vac (cosø>=0.4)
Single phase only.
5 A @ 30 Vdc (resistive)
2 A @ 24 Vdc (inductive T<=30ms)
4 3RM/24VAC Installation Instructions TG200647 Issue 3, 27-Mar-2015. .
3RM/24VAC Installation Instructions - Mounting
Please send any comments about this or any other Trend technical
publication to [email protected]
© 2015 Honeywell Technologies Sàrl, ECC Division. All rights reserved. Manufactured for and on behalf of the Environmental and Combustion Controls
Division of Honeywell Technologies Sàrl, Z.A. La Pièce, 16, 1180 Rolle, Switzerland by its Authorized Representative, Trend Control Systems Limited.
Trend Control Systems Limited reserves the right to revise this publication from time to time and make changes to the content hereof without obligation
to notify any person of such revisions or changes.
Trend Control Systems Limited
Albery House, Springeld Road, Horsham, West Sussex, RH12 2PQ, UK. Tel:+44 (0)1403 211888 Fax:+44 (0)1403 241608 www.trendcontrols.com
TR CU Certication
15
Check Relay Operations
14
Switch on HVAC Equipment Power
Supply
13
Switch On Controller
11
Congure Controller
12
Close panel
4 DISPOSAL
WEEE Directive:
At the end of their useful life the packaging and
product should be disposed of by a suitable
recycling centre.
Do not dispose of with normal household waste.
Do not burn.
3 INSTALLATION (continued)
Note that the AUTO/ON/OFF links may be used to test 3RM to HVAC Equipment installation, however, when using manual
overrides (ON, OFF), feeds switched from other relays on the same module, or interlocks with other relays may not be operative.
‘click’
3RM
HEAT/HIGH
‘click’
FAN/LOW
‘click’
COOL/MID
Equipment
Use SET (software tool) for conguring the controller. SET
is suppied with 3RM strategy blocks for IQ1, IQ2, IQ3 and
IQ4 controllers.
There are 3 strategy blocks: HCM mode, TRM mode/
analogue driver, HCM mode/RL driver
O
I
IN
0V
24V
AUTO ON OFF AUTO ON OFF
H
T
J2
J1
FAN/LOW
COOL/MID
RL1
RL2
NO
NC C
NO
NC C
HEAT/HIGH
RL3
NO
NC C
AUTO ON OFF
J3
3RM
Power Supply
Input power
supply
Equipment
/
