Froling P4 Installation Manual

Plumbing Systems
Page 48
M0930207 I
5
5.3 Sensor Functions for Standard Systems
5.3.1 Top Storage Tank Sensor (sensor 0.1):
-Heat source for differential control of the DHW tank loading pump(s).
-Start signal for storage tank management (default 150ºF (65ºC)).
-Release of a connected back-up oil/gas boiler.
5.3.2 Bottom Storage Tank Sensor (sensor 0.2):
-Stop signal for storage tank management (temperature difference between boiler
temperature and bottom storage tank sensor (default 50ºF (10ºC)).
5.3.3 DHW Tank (sensor 0.3):
-Start signal for DHW tank loading pump.
-Stop signal for DHW tank loading pump.
5.3.4 Bottom DHW Tank (sensor 0.4):
-Reference sensor for solar integration.
5.3.5 Oil/Gas Boiler Temperature Sensor (sensor 0.5):
-Heating circuit release for oil/gas boiler operation (system-dependent).
-Oil/Gas boiler temperature monitoring (switch valve/pump).
5.4 Connection Instructions
5.4.1 Oil/Gas boiler connections:
There are two options for back-up boiler control:
Option A is controlling the secondary boiler with the Froling P4’s Lamdatronic
control. For control logic and settings, please refer to Section 4.6 Menu – Boiler 2
of the Lambdatronic Operating Instructions. The parameter “Control standby
boiler variably to the setpoint” must be set to “Yes”.
Option B is for a system where the secondary boiler has independent control. The
Froling P4 will not control the boiler setpoints of the secondary boiler. Please refer to
Section 4.6.3 Service Parameters for Secondary Boiler. The parameter
“Control standby boiler variably to the setpoint” must be set to “No”.
Option A: Burner Connections
To oil boiler control: Dry
contact for
burner release (TT)
Core Module
Burner Relays

Froling P4 Specifications

General

Model	P4
Category	Boiler
Fuel Type	Wood Pellets
Automatic Ignition	Yes
Automatic Cleaning	Yes
Touchscreen Control	Yes
Remote Monitoring	Yes
Weight	Varies depending on model
Dimensions (H x W x D)	Varies depending on model