ALRE Electronic room temperature controller, continuous action KTRVB-042.205

Model: KTRVB-042.205 Item No: DA 451200
Equipment: Setting range (turning knob): 21°C ± 3 K, the factory preset “zero” (21°C) can be changed internally by ± 5 K
Outputs: Analogue heating output 0…10 V or 10…0 V repluggable 5mA
Analogue cooling output 0…10 V or 10…0 V repluggable 5mA
Inputs: ECO contact, forced switch off contact
Indications: Relative scale (set value 21°C with “0” marking, swelling arrows (“+” and “-” for warmer/colder)
Functions: heating and cooling with adjustable neutral zone and adjustable p-band. ECO mode operation can be activated via an external contact (=neutral zone broadened through ECO zone). Forced switch off function (frost protection monitoring of rooms at approx. 5°C)
Adjustments: Neutral zone from -1…+5 K (factory setting 1 K),
p-band heating 0.5…3 K (factory setting 1 K)
p-band cooling 0.5…3 K (factory setting 2 K)
Application: Control of climates in individual rooms, the conditioning of which is realised via 2-conduit systems (4-pipe systems) and proportionally actuated valves. PG: I

Description

Room temperature controller for the control of permanent valve drive systems. This model controls the climate in an individual room, the conditioning of which is realised via 2-conduit systems (4-pipe systems) and proportionally actuated valves.

Technical Data  
Operating Voltage: 24 V ~/… approx.1 VA

Safety extra low voltage

Sensor: Internal – NTC 47 k Ω

(type KTRVB-042.207 for external NTC 47 k Ω)

Setting Ranges: 5…30°C; 21° ± 8 K

(see equipment)

Proportional Band: 0.5…3 K (see equipment)
Degree of Protection: IP 30
Protection Class: III
General Equipment: Mechanical range reduction
Indicators (LED’s): With model KTRVB-042.206 only
Switch: See Equipment
Admissible Humidity: Max. 95% r.h., non-condensing
Storage Temperature: -20…+70°C
Safety and EMC: According to DIN EN 60730
Ambient Temperature: 0…50°C
Housing Colour: Pure white, similar to RAL 9010
Housing Material: Plastic (ABS)
Mounting/Installation: Surface-/wall-mounted
Weight: Approx. 130g
Electrical Connections: Terminal screws

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