L4006,7,8; L6006,7,8 AQUASTAT
Mounting on Suction Line
1. In cooling units with more than one suction line, place
the sensing bulb on the common line.
2. Make certain the bulb is at least 2 ft (0.6 m) from the
point at which the suction line leaves the cooler. This
prevents the outside temperature from being transmitted
to the remote bulb through the copper tubing of the
3. Place the remote sensing bulb on the side of the
horizontal suction line between the coil and trap (not on
4. Attach the sensing bulb to the suction line with clips or
straps. (See Fig. 17).
5. Coil the excess length of capillary tubing near the
Fig. 16. Securing remote bulb in clip
when mounting with guard bracket.
Fig. 17. Attaching remote bulb to horizontal suction line.
Mounting Surface Mount Models
The L4006H and L6006C are designed for surface mounting
on piping or tanks. Mount the controller directly on the tank
surface using the adjustable mounting bracket as shown in
Fig. 18. The controller can be mounted in any position.
When mounting the L4006H or L6006C on piping, the pipe
should be 1 in. (25 mm) diameter or larger for accurate
temperature sensing. Remove any insulation from the pipe.
Thoroughly scrape off all scale, rust, or paint. Mount the
controller using adjustable bracket provided. Turn on power.
TO SUCTION LINE
Disconnect power supply before beginning installation to
prevent electrical shock or equipment damage.
All wiring must comply with local codes and ordinances
regarding wire size, type of insulation, enclosure, etc.
Figures 19 through 28 show typical hookups.
When wiring a switch equipped with a 1/4 in. (19 mm) tab
terminal connector, use 18 AWG to 22 AWG (0.8 mm
) gauge wire with an AMP Inc. part no. 2-520129-2
fully insulated flag receptable connector or equivalent.
Fig. 18. Mounting L4006H or L6006C directly on surface.
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
USE L4006E FOR MANUAL RESET.
Fig. 19. Typical gas-fired system with domestic hot water.