Laddomat 21-60 User Manual

1
Laddomat
®
21-60 Charging unit
User and installation instructions
LM21-60_Manual_E.indd
81260002-E
090810
The Laddomat 21-60 is designed to...
...allow the boiler to reach a high working temperature soon
after fi ring.
...to heat the cold tank water in the bottom of the boiler so
that the boiler does not rust away through condensation.
…charge the tank with water at a high and even
temperature and low fl ow, to ensure optimal layering in the
tank.
…transfer the residual heat in the boiler to the tank after
the fi re has gone out.
…in the event of electrical power failure stopping the
pump, transfer the heat in the boiler to the tank through
self-circulation.
Operation
Laddomat 21-60 functions fully automatically provided
that pump start and stop is automated. See page 3.
The settings described in this User manual are normally
made only once.
The Laddomat requires no special supervision or service.
Technical data
Pump: Laddomat LM6 (standard)
Connection: 3 x Cu28 with lever (standard)
Opening temperature: 72° (standard).
63°, 78° or 83°C on special order
Boiler output: max 60 kW
NOTE! Diagrams in this brochure only describe connection
principles. Each installation must be measured and carried
out according to the applicable regulations.
+46 (0)321-261 80 www.termoventiler.se

Laddomat 21-60 Specifications

General

Max. Boiler Output	60 kW
Max Temperature	100°C
Max Operating Pressure	0.6 MPa
Power Supply	230 V
Opening Temperature	78°C
Material	Brass
Temperature Range	72-78°C
Pipe Dimension	1"

Summary

Operation

Technical data

Description of functions

Dimensioning

Starting and stopping the charging pump

Expansion vessel

Radiator system

Connecting to a tank

Connecting 2 tanks

Explains how to connect two tanks for even heat distribution and to avoid issues with partial filling.

Equal pipe lengths

Details the importance of using equal pipe lengths for diagonal connections to ensure equal resistance.

Connecting the by-pass valve

Describes the connection options for the by-pass valve, prioritizing either hot water or heating.

Electrical immersion heater operation

Provides advice on heating only the first tank when using an electrical immersion heater to minimize heat loss.

Connection suggestions

Connecting a pressurised expansion vessel

Shows how to connect a pressurized expansion vessel, including the requirement for a pressure gauge.

Alternative installation with open expansion vessel

Presents an alternative method for installing an open expansion vessel, highlighting reduced heat loss.

Thermostat cartridge

Service

Instructions for replacing the thermostat in Laddomat 21-60

Provides step-by-step instructions for safely replacing the thermostat cartridge in the Laddomat 21-60.

Blocking the check valve

Explains how to block the check valve using a clip to completely shut off the self-circulation function.