Connecting An Intelligent Controller (Smart Grid - Sg); Filling The System; Checking The Water Quality And Adjusting The Pressure Gauge; Filling Hot Water Heat Exchangers - Daikin Altherma 3 H HT ECH2 O Referenzhandbuch Für Den Monteur

3 Set-up and installation
[HT/NT contact] = 1
Fig. 3-46 HT/NT contact connection
1 Mains connection box for low rate mains connection
2 Receiver for evaluating the HT/NT control signal
3 Power supply of the heat pump outdoor unit (see respect-
ive installation manual for the heat pump outdoor unit)
4 Potential-free switching contact for heat pump indoor unit
3.7.15 Connecting an intelligent controller
(Smart Grid - SG)
If the [Smart grid] parameter = 1, the function [→ Main menu → Set-
tings → Inputs/Outputs] is activated (see controller operating instruc-
tions), the heat pump is switched to normal or a mode with higher
temperatures depending on the utility company signal.
For this purpose, the SG1/SG2 floating switching contacts of the in-
telligent controller must be connected to the J8 connector, Smart
Grid and EVU connections on the RoCon BM2C PCB (see
Fig. 3-47).
As soon as the Smart Grid function is active, the HT/NT function is
automatically deactivated. Smart grid mode The heat pump is oper-
ated differently depending on the value of the parameter [→ Main
menu → Settings → Inputs/Outputs] (see controller operating in-
structions).
Fig. 3-47 Connecting the Smart Grid
Installer reference guide
28
[HT/NT contact] = 0
3.8

Filling the system

Only fill the indoor unit after all installation work is completed in the
order shown below.
3.8.1 Checking the water quality and adjusting
the pressure gauge
1 Comply with the instructions for the water connection (see
Chap. 3.6) and for the water quality.
2 Adjust the mechanical pressure gauge (mounted on site in ac-
cordance with Chap. 3.6.1 or temporarily installed with filling
hose): Turn the pressure gauge glass so that the minimum pres-
sure marking corresponds to the system height +2 m (1 m wa-
ter column corresponds to 0.1 bar).
3.8.2

Filling hot water heat exchangers

1 Open the shut-off valve for the cold water supply pipe.
2 Open the hot water tap connections so that the draw-off volume
can be set as high as possible.
3 Once water has been discharged from the tap connections, do
not interrupt the cold water flow to ensure that the heat ex-
changer will be fully vented and that any impurities or residue
will be discharged.
3.8.3

Filling the storage tank

CAUTION
Filling the storage tank with too high a water pressure or
too high a flow speed can cause damage to the indoor unit.
▪ Only fill with a water pressure <6 bar and a flow speed
<15 l/min.
Without installed solar system
1 Connect the filling hose with non-return valve (1/2") to the
"Solar inflow" connection
2 Fill the storage tank of the indoor unit until water escapes from
the overflow connection (Fig.
3 Remove the filling hose with non-return valve (1/2").
With installed solar system
1 Install the filling connection with combined filling and draining
valve (accessory KFE BA) following the solar control and pump
unit (EKSRPS4).
2 Connect the filling hose with non-return valve (1/2") to the pre-
viously installed combined filling and draining valve.
3 Fill the storage tank of the indoor unit until water escapes from
the overflow connection (Fig.
4 Remove the filling hose with non-return valve (1/2").
Heat pump (indoor unit) with integrated heat accumulator
(Fig. 3-48, item 1).
3-48, item 2).
3-48, item 2).
Daikin Altherma ETS(X/H)(B)-D
008.1447299_00 – 06/2019 – EN