User Manual

ManualsBrandsSiemens ManualsThermostats (temperature controller with sensor)Room Temperature Controller RCC50.1

CE1N3021en

2017-11-14

Building Technologies

021

Room Temperature Controllers

RCC10…

for two-pipe fan coil units

Output for on / off valve actuator

Outputs for three-speed fan

Control depending on the room or return air temperature (RCC10)

Automatic heating / cooling changeover

Operating modes of RCC10: normal, energy saving and frost protection mode or

OFF

Operating modes of RCC10.1: normal and energy saving mode or OFF

Operating mode changeover input for remote control

Function for avoiding damage resulting from moisture (RCC10.1)

Selectable control parameters (RCC10)

Operating voltage AC 230 V

Use

Typical use:

∂ Control of the room temperature in individual rooms that are heated or cooled with

two-pipe fan coil units.

∂ For opening or closing a valve and for switching a three-speed fan.

Suitable for use in systems with

∂ automatic heating / cooling changeover

∂ continuous heating or cooling operation.

Summary of content (10 pages)

PAGE 1
3 Room Temperature Controllers 021 RCC10… for two-pipe fan coil units Output for on / off valve actuator Outputs for three-speed fan Control depending on the room or return air temperature (RCC10) Automatic heating / cooling changeover Operating modes of RCC10: normal, energy saving and frost protection mode or OFF Operating modes of RCC10.1: normal and energy saving mode or OFF Operating mode changeover input for remote control Function for avoiding damage resulting from moisture (RCC10.
PAGE 2
Functions The controller acquires the room temperature with its integrated sensor or external room temperature sensor (QAA32) or external return air temperature sensor (QAH11.1) – if used (optional with the RCC10) – and maintains the setpoint by delivering control commands to the 2-point-valve. The switching differential with the ∂ RCC10 is adjustable; it can be 1 or 4 K in heating mode and 0.5 or 2 K in cooling mode ∂ RCC10.
PAGE 3
The water temperature acquired by the changeover sensor (QAH11.1 + ARG86.3) is used by the controller to switch from heating to cooling mode, or vice versa. When the water temperature lies above 28 °C, the controller switches to heating mode, below 16 °C it switches to cooling mode. If, immediately after switching on, the water temperature lies between the 2 changeover points, the controller will start in heating mode. The water temperature is measured at minute-intervals and the operational status updated.
PAGE 4
Avoiding damage resulting from moisture (only with the RCC10.1) Operating mode changeover switch To avoid damage due to moisture in very warm or humid climatic zones resulting from lack of air circulation in energy saving mode, the fan will not be switched off when selecting the function “Temperature-independent fan control“ (with DIP switch no.1) A changeover switch can be connected to status input D1-GND.
PAGE 5
3021Z01 Setting and operating elements 2 3 5 Legend 6 4 1 1. Operating mode selector (standby , heating or cooling mode with manual selection of fan speed) 2 LEDs for indicating heating mode, cooling mode and fan operation 3 Setting facility for minimum setpoint limitation (in increments of 1 K) 4 Setting facility for maximum setpoint limitation (in increments of 1 K) 5 Room temperature setpoint knob Set of DIP switches DIP switch no.
PAGE 6
Engineering notes In systems with automatic changeover, the temperature sensor can be replaced by an external switch for manual changeover. In systems with continuous heating operation, no sensor will be connected to the controller’s input. With continuous cooling operation, the controller input (B2–M) must be bridged. Mounting, installation and commissioning notes Mounting location: on a wall or inside the fan coil unit.
PAGE 7
Technical data Power supply Operational data Environmental conditions Norms and standards Operating voltage AC 230 V +10/-15 % Frequency 50/60 Hz Power consumption max. 6 VA No internal fuse External preliminary protection with max. C 10 A circuit breaker in the supply line required under all circumstances Control outputs Q1, Q2, Q3 AC 230 V Rating max. 600 VA Control output Y11 (N.O. contact) AC 230 V Rating max. 300 VA Control output Y12 (N.C. contact) AC 230 V Rating max.
PAGE 8
Environmental compatibility The product environmental declaration CE1E3020*) contains data on environmentally compatible product design and assessments (RoHS compliance, materials composition, packaging, environmental benefit, disposal). General Connection terminals Use solid wires or prepared stranded wires. 2 x 0.4-1.5 mm2 or 1 x 2.5 mm2 0.25 kg white, NCS S 0502-G (RAL9003) Weight Colour of housing front *) The documents can be downloaded from http://siemens.com/bt/download.
PAGE 9
Dimensions Unit/baseplate 4 28 4 30 26 96,6 42,8 90 3021M02 11,8 30 28 114,15 104 4 35 28 3021M01 28 9/10 Siemens Building Technologies Room temperature controller CE1N3021en 2017-11-14
PAGE 10
Issued by Siemens Switzerland Ltd. Building Technologies Division International Headquarters Gubelstrasse 22 CH-6300 Zug Tel. +41 58-724 24 24 www.siemens.com/buildingtechnologies © Siemens Switzerland Ltd, 2003 - 2017 Technical specifications and availability subject to change without notice.