7. Apply the adhesive backed pouch to the top of the inner lid and
place this manual inside for future reference.
8. Install the sound insulating foam-rubber mat between the heating
unit cover and the floor hatch.
9. Install the floor hatch. If desired, use standard transition trim
between the hatch and the floor.
ELECTRICAL CONNECTIONS
(Danfoss Thermostat model RET B)
www.legalett.com
1
M
L1 L2
1
2
3
4
5
6
7
8
9
10 11 12
C
1
2
3
24V
24V
1 P
- 230V
60Hz, 15
A
Valve 1
Valve 2
Valve 3
Valve 4
Brown
Blue
Blac
k
30 C
R
C
W
Thermostat 1
R C
W
R
C
W
Thermostat 2
R C
W
R
C
W
Thermostat 3
R C W
R
C
W
Thermostat 4
R C
W
If 1 - 3 thermostats are used,
or if more than one thermostat
is installed in the same room,
install a jumper between the
connection blocks 3 and 6, 9
and 12 as required.
Refer to the floor plan for
thermostat locations.
ELECTRICAL CONNECTIONS
(Thermostat model TH115) only
1. Check the electrical data on the unit so that other installation
materials are compatible. The installation must be performed by
an authorized electrician.
2. Install a properly sized two-pole local disconnect to enable total
isolation. GFI protection is required.
3. Use properly sized copper wire for connection to the panel.
4. Connect thermostats.
5. Seal the conduits which run into the unit using a duct sealing compound
for both water and electrical, after the water and electrical connections
have been made, for sound attenuation.
6. Install the heating unit inner cover. Test run for 1 hour and then
open for a check. If necessary clean, check for dryness, and test
run again. If moisture is still present, re-install construction heater
and run until the system is dry.
7. Apply the adhesive backed pouch to the top of the inner lid and
place this manual inside for future reference.
8. Install the sound insulating foam-rubber mat between the heating
unit cover and the floor hatch.
9. Install the floor hatch. If desired, use standard transition trim
between the hatch and the floor.
If 1 - 3 thermostats are used,
install a jumper between the
connection blocks 3 and 6, 9
and 12 as required.
Refer to the floor plan for
thermostat locations.
1. Check the electrical data on the unit so that other installation
materials are compatible. The installation must be performed by
an authorized electrician.
2. Install a properly sized two-pole local disconnect to enable total
isolation. GFI protection is recommended.
3. Use properly sized copper wire for connection to the panel.
4. Connect thermostats.
5. Seal the conduits which run into the unit using a duct sealing compound
for both water and electrical, after the water and electrical connections
have been made, for sound attenuation.
6. Install the heating unit inner cover. Test run for 1 hour and then
open for a check. If necessary clean, check for dryness, and test
run again. If moisture is still present, re-install construction heater
and run until the system is dry.
1
3
2
3
2
3
2
3
2
3
2
M
L1 L2
1
2
3
4
5
6
7
8
9
10 11 12
C
1
2
3
24V
3
2
3
2
3
2
24V
1 P
- 230V
60Hz, 15
A
Valve 1
Valve 2
Valve 3
Valve 4
Thermostat 1
Thermostat 2
Thermostat 3
Thermostat 4
Brown
Blue
Black
30 C
(by others)
(by others)
