L8124 Series TRIPLE ACTION AQUASTATS

Immersion type controller provides high limit protection and low limit/circulator control in hydronic heating systems which include domestic hot water service. Installed in conjunction with a 24 volt thermostat. Mounts directly to immer- sion well; sensing bulb is 3/8 x 3”.

L8124A - Provides multi-zone control by using a separate circulator and R845 relay for each zone. Vertical mounting. L8124B - Provides single zone control. Vertical or horizontal mounting. L8124C - Provides multi-zone control by using a separate circulator and R845 relay for each zone. Horizontal mounting. L8124E - Provides multi-zone control by using a separate circulator and R845 relay for each zone. Includes 30 VA transformer and extra terminals to supply power to 24v zone valves. Vertical or horizontal mounting. L8124G - Provides multi-zone control by using a separate circulator and R845 relay for each zone. Includes 30 VA transformer and extra terminals to supply power to 24v zone valves. Vertical or horizontal mounting. L8124L- Includes ZC-ZR terminals for multi-zone control using a separate circulator and R845A relay for each zone. With large trans former and extra terminals for supplying power to low voltage zone valves.

CAT. NO. MFG. NO.

2C684 6G403 2C686 2C690 2C689 2C692

L8124A1007 L8124B1039 L8124C1003 L8124E1016 L8124G1020 L8124L1011

HIGH LIMIT RANGE

130 to 240° 130 to 240° 130 to 240° 130 to 240° 130 to 240° 130 to 240°

HIGH LIMIT DIFFERENTIAL 10° fixed 10° fixed 10° fixed 10° fixed 10° fixed 10° fixed

LOW LIMIT/CIRCULATOR RANGE

110 to 220° 110 to 220° 110 to 220° 110 to 220° 110 to 220° 110 to 220°

L8148 Series AQUASTAT RELAY

Immersion type controller combines a high limit with an intermediate switching relay to control burner and circulator. Works in conjunction with a 24 volt thermostat, and includes transformer and accessory terminals to add a remote low limit control (L6006).High limit functions to break burner circuit when water temperature reaches limit setting. Inter- mediate relay makes burner and circulator circuits upon call for heat.

L8148A - Used for single zone control of hydronic systems with line voltage control to oil or gas burner. Mounts horizontally or verti- cally to immersion well (not included); includes well adapter and heat conductive compound. L8148E - Controls 24 volt systems and up to 3 zone valves without additional transformers. Mounts vertically to immersion well (not included); includes well adapter and heat conductive compound. L8148J - Controls 24 volt and millivolt gas fired systems and up to 3 zone valves without additional transform- ers. Mounts horizontally or vertically to immersion well (not included); includes well adapter and heat conductive compound.

CAT. NO. MFG. NO. 2C694 2C695 2C696

L8148A1017 L8148E1265 L8148J1009

HIGH LIMIT RANGE HIGH LIMIT DIFFERENTIAL VOLTAGE 140 to 240° 180 to 240° 140 to 240°

8° fixed 15° fixed 8° fixed

120 120

24 or millivolt

L4081 & L6081 Series MULTIPLE AQUASTATS

Used to control boiler water temperature in gas or oil-fired hydronic heating systems. Immersion element (3/8 x 3”) actuates two snap action micro switches for high limit, low limit and/or circulator. Mounts horizontally to immersion well (not included).

L4081A - Provides high limit and low limit control. Includes well adapter. L4081B - Provides high limit and circulator control. Includes well adapter. L6081A - Provides high limit, low limit and circulator control. Includes well adapter, dial stop and heat conductive com- pound. Electrical rating: 8.0 amps @ 120v, 5.1 amps @ 240v.

CAT. NO. MFG. NO.

2C676 2C680 2C681 2C672

742 RANGE

HIGH LIMIT DIFFERENTIAL

L4081A1023 130 to 240° Adj. L4081B1047 130 to 240° 10° fixed L4081B1096 130 to 240° Adj. L6081A1010 130 to 240° 10° fixed

SWITCHING LOW LIMIT/CIRCULATOR RANGE

SPST SPST SPST SPST

110 to 220° 110 to 220° 110 to 220° 110 to 220°

LOW LIMIT/CIRCULATOR DIFFERENTIAL 10 to 25° adj. 10 to 25° adj. 10 to 25° adj. 10 to 25° adj.

LOW LIMIT/CIRCULATOR SWITCHING SPST SPST SPST SPDT

EACH

$372.33 $364.65 $278.03 $318.82

EACH

$318.25 $385.61 $375.90

LOW LIMIT/CIRCULATOR DIFFERENTIAL 10 to 25° adj. 10 to 25° adj. 10 to 25° adj. 10 to 25° adj. 10 to 25° adj. 10 to 25° adj.

CONTROL CIRCUIT VOLTAGE 120

Millivolt 120 24

120 120

EACH

$417.74 $458.02 $417.74 $429.71 $434.24 $428.29

CONTROLS