31
Section 6 - System Installation
Direct Circulation Baseboard Installation
Baseboard heaters, as either the main source of heat or
as supplements to forced-air or boiler applications are
easily plumbed into the water lines from the outdoor
furnace.
Refer to Fig. 39 and 40 for proper plumbing methods.
H
C
M
R
(Baseboard / Forced Air)
Dual System
Hot Supply from Pump
on Outdoor Furnace
Return to Outdoor Furnace
Optional
Thermostatic Valve
NOTE
Outdoor furnace water
temperature setpoint should
be set at 185˚F minimum.
NOTE
A pump must be installed in the hot
supply line between the outdoor furnace
and thermostatic valve.
Hot Supply
Water
Heater
This horizontal assembly
must not exceed a height
of 4 inches above
top of water heater.
Water-to-Water
Heat Exchanger
Optional 3-Way
Bypass Valve
Bypass
Line
Baseboard
Heater
For illustration purposes only:
• Water heater styles may vary.
• Size of incoming line may vary
(depending on application).
• Location of thermostat may vary.
1"
Central
PEX
®
Plenum
Forced Air
Furnace
NOTE
4 x Pipe Dia. Max.
(e.g., for 1" pipe, fittings must
not be more than 4" apart)
NOTE
Installer must comply with all applicable
codes and regulations.
Bleeder
Elbow
Flow Check
Valve
Zoning
Pump
Thermostatic
Mixing Valve
Fig. 39
H
C
M
R
Water
Heater
Note: For illustration purposes only.
Water heater styles may vary.
Size of incoming line may vary,
depending on application.
Hot Supply from Pump
on Outdoor Furnace
Return to Outdoor Furnace
Thermostatic
Valve (optional)
W
C
R
24-Volt Thermostat
(p/n 8200008)
110-Volt
Supply
24-Volt
Transformer
(p/n 188)
Hot Supply
Zone Valve
Unit (A)
Bypass (B)
This horizontal assembly
must not exceed a height
of 4 inches above top
of water heater.
Thermostatic
Mixing Valve
Water-to-Water
Heat Exchanger
NOTE
Installer must comply with all applicable
codes and regulations.
Main (C)
Return to
Outdoor Furnace
NOTE
A pump must be installed in
the hot supply line between
the outdoor furnace and
thermostatic valve.
NOTE
Outdoor furnace water
temperature setpoint should
be set at 185˚F minimum.
NOTE
The outdoor furnace is not intended
to be the only source of heat.
Baseboard
System
(Three Way Zone
Valve Controlled)
End Switch
Motor
Circuit
LED
C
W/Y
W
C
Fig. 40
