IQ251 Controllers

The IQ251 is a large capacity controller designed for the control of all types of building plant. It can provide up to 128 I/O points by connecting 8 I/O modules in any combination. IQ system accessory modules may be connected to the input/output channels to provide greater I/O flexibility. They enable the IQ251 to provide sufficient capability for more complex strategies. It can operate either as a stand alone device or as part of a Building Management System.

•	Order example: IQ251/comms/cards e.g. IQ251/TMNH/UK/4EIN/3EDO/230

Controllers

Serial communication

Comments

Power source

Type

—

Proprietry

up to 8 Cards

230Vac

IQ251/.../230

—

Proprietry

up to 8 Cards

24Vdc

IQ251/.../24VDC

—

Proprietry

up to 8 Cards

24Vac

IQ251/.../24VAC

I/O Cards

Serial communication

Comments

Power source

Type

—

/EIN/

—

/EAO/

—

/EDO/

Accessories

Description

Additional Product Type

5V powered sensors (Voltage Input) Pack of eight

LKE/5V

15V powered sensors (Voltage Input) Pack of eight

LKE/15V

10ma current source (Resistance Input) Pack of eight

LKE/10mA

Analogue input to digital input convertor Pack of eight

LKE/DI

Retrofit kit to add an integral Network Display Panel (ENDP Option) to an IQ251

KIT/ENDP/IQ251

Retrofit kit to add node card to an IQ251

KIT/NODE/IQ25x

Adapter lead from supervisor to IQ25x (9 way female to RJ11)

CABLE/EJ101442

IQ earthing busbar/cables screen earthing strip and screws

PART/LA102359K

Balanced Line Transmitter

BLT

Room Display with temperature and setpoint display and adjustment

RD-IQ/K

Room Display with temperature and setpoint display and adjustment with occupancy override

RD-IQ/KOS

Room Display with temperature and setpoint display and adjustment, with occupancy override and fan speed adjust

RD-IQ/KOSF

Smart Display Unit for IQ2xx controllers (excl. IQ250)

SDU-IQ

16mm surface mount box for RD & SDU Box of 10

ACC/SMBOX/16

600x600mm enclosure (accepts all IQ200 series controllers except IQ246)

ENCLS/