Siemens RVS41.813 User Manual page 182

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Siemens Switzerland Ltd
HVAC Products
The controller receives the pressure signal in the form of voltage signals (DC 0...10 V).
The respective pressure value is calculated via the linear characteristic which is defined
by 2 fixed points (voltage value 1 / function value 1 and voltage value 2 / function value
2).
If the pressure value crosses one of the set limit values, an error or maintenance
message is delivered. If the value falls below the critical pressure limit, the heat pump is
shut down.
The values of the maximum, minimum and critical water pressure for H1 can be set
under 6140 OEM...6142 OEM, foür H2 under 6150 OEM...6152 OEM, and for H3
under 6180 OEM...6182 OEM
Rel room humidity 10V
The controller receives the relative humidity signal in the form of voltage signals (DC
0...10 V).
The respective room humidity is calculated via the linear characteristic which is defined
by 2 fixed points (voltage value 1 / function value 1 and voltage value 2 / function value
2).
The controller compares room humidity with the limit values set on operating lines 6137
and 6138 and switches external air dehumidifier K29 connected to an appropriately
defined output QX1 – QX6 (5890 – 5896).
Room temperature 10V
The controller receives the room temperature signal in the form of voltage signals (DC
0...10 V). The room temperature in connection with relative room humidity is used to
calculate the dewpoint temperature in the cooling circuit.
If there is no room unit with a room sensor (BSB) connected for heating / cooling circuit
1, the room temperature measured at Hx is also used for room heating / cooling 1
(variant with compensation and room influence).
The respective room temperature is calculated via the linear characteristic which is
defined by 2 fixed points (voltage value 1 / function value 1 and voltage value 2 /
function value 2).
Release swimming pool
This function is to be used to enable direct heating of the swimming pool from
externally via the heat pump and Hx pumps (e.g. with a manual switch).
For direct charging, a release signal is always required at input Hx.
Configuration: Set the function of input Hx to "Release swimming pool" and select the
associated Hx pump at one of the OX outputs.
This function can be used to enable solar heating of the swimming pool from
externally (e.g. with a manual switch) or to define solar charging priority over storage.
Configuration: Set the function of input Hx to "Release swimming pool". For a
description of the function, refer to operating line 2065 "Charging priority solar".
User manual RVS61.843, RVS41.813
6 The settings in detail
CE1U2355en_02
28. September 2009