Saunacore Mercuri Operating Instructions Download Page 2

Figure 99

Figure 88

Coil

Electronic Control 

(rear view)

1 Amp

240 V

Fuse

(INLINE)

H1

L1

L2

H2

Temperature Plug

Temperature

 

Sensor 

in sauna

(over stove, ceiling
height)

Control

Ground

H.L.

Heater

Conduit 
or BX

Ground

POWER

SUPPLY

Ground

L1

L2

Conduit 
or BX

L3

L1

L2

L3

H1

L1

L2

H2

H.L.

Heater

Temperature Plug

Temperature

 

Sensor

Power Supply

Ground

L1

L2

Conduit 
or BX

Ground

Control

7

www.saunacore.com

Mercuri Digital Control

SAUNACORE 

Mercuri Digital Controls

(120v/240v 1Phase 30 Amps + Under)

(rear view)

Mercuri Digital Controls

(240v/208v) 1 Phase Over 30 Amps or Any 3 Phase)

IMPORTANT!

Loose connections or connectors
may cause electrical shortage.
Make sure all connections and
connectors are firmly secure.

Operation:

Set time and temperature.
Temperature display window will 
alternate simultaneously from
current room temperature and set
tempurature

Note:
All power supply wires
from control box to stove
must be protected by
metal conduit.

(rear view)

AUX

LIGHT

N

LIGHT

N

CAUTION:  THE MANUAL RESET LIMIT SHALL BE WIRED IN THE CIRCUIT

For supply connections, use suitable
AWG wires suitable for at least 

90  C  (190  F). (Use only copper wire).

o

o

Ground wire must be insulated.

Mercuri control must be installed outside of 
the sauna room, into a 3 gang masonry
electrical box.

When the magnetic contactor
is used, it also must be installed
into an appropriate metal 
electrical enclosure box outside the sauna.

Box Size:  3.5" deep x 3.75" high x 5-19/32" wide
Volume (63 Cu.in.) 

Box Size: min 6" wide x 6" high x 3" deep
Volume (108 Cu.in.)

Eurpean Connection
( L2 = N -  "Neutral")

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