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Matrix Installation and Operation Instructions
6.2 Matrix Boiler Connections
6.3 Hydronic Heating Additions (Optional)
ATTENTION
1. LOW TEMPERATURE APPLICATIONS (i.e., In-floor) require the use of mixing controls such as a Tekmar
injection system or thermostatic mixing valves (See 6.2.3 to 6.2.4). During a call for “Forced-Air Heat”
the Matrix will operate at a constantly varying boiler water temperature, this temperature may at times
exceed the maximum allowable temperature for some or all of the hydronic zones.
2. HI TEMPERATURE APPLICATIONS (i.e., finned tube baseboard) do not require mixing controls,
however, when the Matrix is operating during a call for Forced-Air Heat the hydronic system will only
receive the heat leftover from the Matrix air handler; keep this in mind during system sizing and design.
3. In applications that do not use zone valves it is important to incorporate into the system design means
necessary to prevent THERMAL SIPHONING. Note: the following drawings are to be used as a reference
only for the system designer.
Hot Supply
Backflow
Preventer
Figure 6.1 Boiler Feed Water Connections
Standard Configuration
Optional (Hydronic Add-On)
Relief Valve
(supplied)
Boiler Feeder
Valve (supplied)
Drain Valve
Relief Valve
(supplied)
Backflow
Preventer
Boiler Feeder
Valve (supplied)
Air Scoop
Expansion Tank
Cold Return
IMPORTANT
Expansion tank and air removal device for the internal functions of the Matrix are included and provide only
enough capacity for these functions.
Additional secondary systems require appropriately sized air removal and expansion capability.
