Low Energy Pump For Heat Transfer Medium (Pc0); Circulation Pump For The Heating System (Pc1); Dhw Circulation Pump Pw2 (Accessory); Insulation - IVT AirModule E 15 Installer's Manual

Fig. 15 Drain hose
[1] Drain hose
▶ Connect the drain hose with a leakage drain hose to a frost protected
drain.
7.13

Low energy pump for heat transfer medium (PC0)

PC0 heat transfer pump is PWM operated (RPM controlled). The pump
settings are managed on the heat pump module control panel.
Circulation pump speed is automatically adjusted for optimal operation.
7.14

Circulation pump for the heating system (PC1)

NOTICE: Damage due to deformation!
The circulation pump connecting pipe in the safety
assembly may bend if it is subject to heavy weight
pressure for an extended period of time.
▶ Use appropriate mounting installation for the heating
system pipes and DHW circulation pump to support
the safety assembly connection.
AirModule –6 720 813 268(2014/10)
1
6 720 809 156-10.1I
The heating system circulation pump is required and
selected based on the system pressure drop and flow
requirements.
PC1 must always be connected to the installer module in
the heat pump module according to the circuit diagram.
Relay output max. load for circulation pump PC1: 2 A,
cos>0.4. Higher load requires installation of an
intermediate relay.
7.15

DHW circulation pump PW2 (accessory)

Settings for the circulation pump PW2 is done in the control unit
(Chapter 12.4).
7.16

Insulation

NOTICE: Damage due to freezing!
In case of a power outage the water in the pipes may
freeze.
▶ Use at least 19 mm insulation for outside pipework.
▶ Use at least 12 mm insulation for inside pipework.
This is important for safe and efficient DHW heating.
All heat conducting lines must have suitable heat insulation according to
applicable norms.
During cooling, all connections and lines must be condensation
insulated according to applicable norms.
7.17 Several heating circuits (mixing valve module
accessory, see separate instructions)
The user interface can handle a heating circuit without a mixing valve in
standard configuration. A mixing valve module is required for each
circuit if additional circuits are installed.
▶ Install the mixing valve module, mixing valve, circulation pump and
other components in accordance with the selected system solution.
▶ Connect the mixing valve module to terminal EMS on the installer
module in the heat pump module electric box.
▶ Make settings for several heating circuits in accordance with Chapter
12.3.2.
If there is already a connection on the EMS terminal, the connection is
made parallel to the same terminal in accordance with Fig. 16. If several
EMS modules are installed in the system, these must be connected in
accordance with Fig. 33, Chapter 8.12.
7.18

Installation of condensation sensor (accessories)

NOTICE: Damage due to moisture!
Cooling below dew point will result in condensation on
the surrounding material (floor).
▶ Do not use the underfloor heating system for cooling
below dew point.
▶ Correctly adjust the flow temperature as described
in Chapter 12.3.2.
The condensation guard function will stop the cooling if condensation
develops on the heating system pipes. Condensation will develop during
cooling if the heating system temperature is lower than current dew
point temperature.
Installation
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