PSG MAX CADDY PF01102 Installation And Operating Instructions Manual Download

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10.4. INSTALLATION OF A DOMESTIC WATER PRE-HEATING SYSTEM OR A HUMIDIFIER

A water heating loop option is also available to pre-heat domestic water using the energy produced by the Max Caddy
wood furnace. This water loop kit will be inserted between the wood combustion chamber and the heat exchangers.
When heating with wood, the heat from the furnace will pre-heat domestic water that will be stored in a feed tank
before entering your existing water heater. Removable panels are installed on both sides of the furnace for quick and
easy installation of the loop. A 24 volt solenoid valve must be installed at the inlet of the loop and must be connected to
the HOT H

0 terminal on the PC board; when the plenum temperature reaches 120°F, the valve opens to allow water

circulation. It closes when the temperature drops below 100°F to prevent overcooling the combustion chamber during
low firing rates. See section 28.3 -

HOT WATER

for electrical connection. Complete installation and operation

instructions for the hot water loop kit are supplied with the kit.

NOTE : NEVER INSTALL AN AUTOMATIC FEEDER.

The HUM OUT terminal may also be used to activate the 24 volt relay of a humidifier installed in the system which,
when connected to the PC Board, will be activated and deactivated at the same temperatures as the water solenoid
valve (120°F et 100°F). See section 28.6 - HUMIDIFIER for electrical connections.

To verify the status (open or closed) of the valve/relay, see section 14.1 - VALIDATING STATUS OF A COMPONENT.

11. CONFIGURATION AND OPERATING INSTRUCTIONS

11.1. CONTROLS SYSTEM

The Max Caddy  has  a sophisticated  electronic control. This system is more versatile. All connections  are  made from
the control panel. Terminal blocks are provided for all components and options.

Before you configure your system and learn how to operate it, make sure that your wall thermostat is wired correctly to
your furnace, that the temperature probe (RTD) is well installed in the hot air plenum and connected to the link board
and that your air distribution system is complete.

The  furnace  uses  a  touch  screen,  the  latest  technology  in  control  devices.  Blowers,  power  supplies  and  options  are
controlled from this screen.

It is important to note that your furnace is equipped with  three main electronic components: the link board,  the power
board and the touch screen. The power board is already installed in the blower box.

The power board is used to supply current to the different electrical components, in particular:

Supply current to the different electronic boards;

Supply current to the distribution fan;

Supply current to the sequencers of the electrical unit (optional);

Supply current to the oil burner.

The link board is used more precisely for:

Connecting the hot air plenum’s temperature probe (RTD type);

Connecting the wall thermostat;

Connecting complementary equipments;

Connecting a heat pump.

The LCD touch screen is used to operate the system. More precisely for:

Choosing the combustion parameters;