Siemens Climatix Series User Manual

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Siemens Standard application AHU CE1P3977en_02
Building Technologies Functions 01.02.2010
For pure supply air control, the room setpoint test is disabled and then only the
outside air temperature-room temperature condition is considered.
An outside air and room or return air temperature sensor required. If both a room
and return air sensor is active then the return air sensor is used.
The function is blocked when the sensor fails.
5.7 Heat recovery (Plate, wheel, water)
5.7.1 General
Heat recovery is enabled and preconfigured in configuration 1, configuration 2 and
configuration I/Os.
Main Index > Configuration > Configuration 1
Parameter Range Function
Heat recovery – No
– Wheel
– PlateExch
– Water
No heat recovery.
Rotary heat exchanger.
Plate heat exchanger.
Water heat exchanger.
Main Index > Configuration > Configuration 2
Parameter Range Function
Heat recovery frost – No
– Detector
– sensor
– Dtctr+Snsr
– PressSnsr
– Pres+Dtctr
– No frost protection.
– Frost protection using a detector.
– Frost protection using a sensor.
– Frost protection using a sensor and detector.
– Frost protection using a pressure sensor.
– Frost protection using a pressure sensor and
detector.
Hrec pump / cmd – No
– Yes
– Yes+Kick
– No pump.
– Heat exchanger pump without pump kick.
– Heat exchanger pump with pump kick.
Hrec pump alarm – No
– Alarm
– Fdbk
– Both
– Pump without alarm or feedback.
– Pump with alarm.
– Pump with feedback.
– Pump with alarm and feedback.
Heat recovery alarm – No
– Yes
Heat recovery with or without alarming.
Hrec clg recovery – No
– Hrec
– DamperHrec
– Both
– No cooling recovery.
– Cooling recovery, e.g. using a rotary heat ex-
changer.
– Cooling recovery using mixed air dampers.
– Both variants enabled.
Heat recovery serve to recover heat or cooling. One plate, wheel or water ex-
changer (with pump control and frost protection) is available. The plant can be
started for a set period at full recirculation in dependence on the outside air tem-
perature.
Note
Sensor failure
Prerequisite
Enable heat recovery
Configuration
Function
Basis Document Siemens Climatix Control System
BDCX.100820.01GB
Page 69

Siemens Climatix Series Specifications

General

Application	HVAC control
Communication Protocols	BACnet, Modbus, KNX
Inputs	Analog and digital inputs
Outputs	Analog and digital outputs
User Interface	web interface
Power Supply	24 V AC
Protection Class	IP20
Mounting	DIN rail mounting