
MERLIN NX ROOM CONTROLLER – INSTALLATION & COMMISSIONING INSTRUCTIONS
23
EN1Z-1035GE51 R0319
TROUBLESHOOTING
All units feature a Service Button, Status LED, Power LED,
and two additional LEDs (T1 and R1) for commissioning and
troubleshooting. See also Table 8 and Table 9 and section
"Service Button".
Check if the Status LED's behavior is changed if you switch
the power OFF/ON. Please contact Honeywell if this does not
solve the problem.
Further, the test function of Niagara can also be used to carry
out general application and wiring checks. Niagara also
features a BACnet Object Browser which can prove very
helpful in analyzing the controller's function and
communication.
ACCESSORIES
Terminal Protection Cover; required for wall mounting. Bulk
pack, set of ten covers.
▪ For large controllers, order no.: IRM-RLC
▪ For small controllers, order no.: IRM-RSC
APPROVALS, CERTIFICATIONS, ETC.
Approvals and Certifications
▪ UL 60730-1, Standard for Automatic Electric Controls for
Household and Similar Use, Part 1: General
Requirements;
▪ CAN/CSA-E60730-1:02, Standard for Automatic Electrical
Controls for Household and Similar Use, Part 1: General
Requirements;
▪ Complementary listing for UL916, CSA C22.2 No. 205;
▪ BTL-listed, BACnet AAC profile;
▪ SASO-approved;
▪ CE-approved;
▪ FCC part 15B-compliant: This equipment has been tested
and found to comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC Rules. These limits
are designed to provide reasonable protection against
harmful interference in a residential installation. This
equipment generates, uses, and can radiate radio-
frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful
interference to radio communications. However, there is
no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful
interference to radio or television reception, which can be
determined by turning the equipment off and on, the user
is encouraged to try to correct the interference by one or
more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and
receiver.
- Connect the equipment into an outlet on a circuit
different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV
technician for help.
Classification according to EN 60730-1
EN 60730 sub part:
EN 60730-2-9
Environmental conditions: For use in home (residential,
commercial, and light-industrial)
environments
Construction:
independently mounted control,
for panel-mounting
Action:
type 1.C
Rated impulse voltage:
2500 V at 230 V; 500 V at 24 V
Pollution degree:
2
Protection against shock:
Class 0 (without terminal covers)
Class II (with terminal covers)
Software class:
Class A
Classification according to EN 60529
(Degree of protection provided by enclosures)
IP20. In the case of controllers mounted outside of a cabinet,
before applying power to the device, Terminal Protection
Covers (10-pc. bulk packs, order no.: IRM-RLC for large
housings and IRM-RSC for small housings) must be mounted
so as to provide IP30.
Ambient Environmental Limits
(5…90% r.H., non-condensing)
Operating temperature
(floor/ceiling mounting):
0 … +40 °C
Operating temperature
(wall/rail mounting):
0 … +50 °C
Storage temperature:
-20 … +70 °C
RELATED TECHNICAL LITERATURE
Table 15. Related Technical Literature
Title
Product
Literature no.
CLMERxxN Room Controller – Mount. Instr.
MU1Z-1035GE51
CLMERxxN Room Controller – Data Sheet
EN0Z-1035GE51
CLMERxxN Room Controller – Inst. & Comm.
Instr.
EN1Z-1035GE51
CLCM1T,2T,4T,5T,6T – Product Data
EN0Z-0901GE51
CLCM1T,2T,4T,5T,6T – Installation Instructions
MU1Z-0901GE51
CLCMTR40x/TR42x – Specification Data
EN0Z-0990GE51