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RHSXB04P30D
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Daikin RHSXB04P30D — установка и подключение теплового насоса: инструкция по эксплуатации [24/68]

Daikin RHSXB08P30D [24/68] Set up and installation

4 Set-up and installation

Installation and maintenance instructions

ROTEX HPSU compact Ultra RHSX(B)-D

Heat pump (indoor unit) with integrated heat accumulator

008.1444444_01 – 11/2018 – EN

X1M

COM

Fig.4-35 Connecting the heat pump outdoor unit

INFORMATION

If the heat pump outdoor unit is shut off via a circuit spe-

cified by the utility company, the indoor unit is not shut off.

4.7.6 Connecting the outside temperature

sensor (optional)

The heat pump outdoor unit has an integrated outside temperature

sensor which is used for weather-compensated inflow temperature

control with frost protection function. The weather-compensated in-

flow temperature control can be further optimised with the optional

outside temperature sensor.

▪ Choose a location at about one third of the building height (min-

imum distance from floor: 2m) at the coldest side of the building

(North or North-East). Ensure that the location is not near to any

external heat sources (flues, air ducts), nor subject to direct solar

radiation.

▪ Place outside temperature sensors in such a way that the cable

exit points face downwards (prevents humidity ingress).

CAUTION

Laying the sensor and mains lines in parallel within an in-

stallation conduit can lead to major malfunctions during

controlled operation of the indoor unit.

▪ Always lay the sensor line separately.

1 Connect the outside temperature sensor to a twin-core sensor

line (minimum diameter 1mm

2 Lay the sensor line to the indoor unit.

3 Follow the installation steps in Chap. 4.7.4.

4 Connect the sensor line to terminal strip XTA1 (see Chap. 4.7.2).

5 In the controller, RoCon+ HP set the [External temperature

sensor] parameter to "On" s[→Main menu →Configuration

→Sensors].

4.7.7 External switching contact

Connecting an external switching contact (Fig. 4-36) enables the op-

erating mode of the indoor unit to be switched over.

The current operating mode is switched by a changing resistance

value (Tab. 4-7). The changeover of the operating mode is only ef-

fective for a long as the external switching contact is closed.

The operating mode has an effect on the direct circuit of the indoor

unit as well as all other heating circuits connected to this device as

an option.

When special functions (e.g. "48h Emergency Operation") are activ-

ated, the input is not evaluated.

Fig.4-36 EXT switching contact connection

Operating mode Resistance RV Tolerance

Standby <680Ω ±5%

Heating 1200Ω

Reducing 1800Ω

Summer 2700Ω

Automatic 1 4700Ω

Automatic 2 8200Ω

Tab.4-7 Resistance values for evaluating the EXT signal

INFORMATION

The input is not considered for resistance values greater

than the value for "Automatic 2".

INFORMATION

The [Heating support (HZU)] function integrated in the Ro-

Con+ HP controller (see the Controller operating instruc-

tions) makes it unnecessary to connect the EXT connec-

tion to the burner blocking contact connection of the solar

system.

4.7.8 EBA (external requirement request)

By connecting the EBA switching contact to the indoor unit

(Fig. 4-37) and corresponding parametrisation in its RoCon+ HP

controller, an external switching contact can be used to generate a

heat request. If the switching contact is closed, the indoor unit

switches to heating mode. The feed temperature is regulated to the

temperature set in the [Feed temperature heating mode] parameter

[→Main menu →Configuration →Heating].

The EBA switching contact has priority over a request from the room

thermostat.

The switching contact is not evaluated in cooling mode, standby,

manual or summer mode. The heating limits are also ignored.

Fig.4-37 EBA switching contact connection

4.7.9 Connecting an external heat generator

INFORMATION

To connect an external heat generator, the connection set

for external heat generators must be installed. (see

Chap. 4.5).

Daikin RHSXB04P30D — установка и подключение теплового насоса: инструкция по эксплуатации [24/68]

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