Honeywell L4006E User Manual

L4006A,B,E,H AQUASTAT® CONTROLLERS

60-0915—4

6. Make sure the end of the well fits into the hole in

the case. Position the immersion well clamp snugly

over the well flange and tighten the clamp screw
securely.

Mounting Surface Mount Model (L4006H)

The L4006H is designed for surface mounting on piping

or tanks and can be mounted in any position.

When mounting the L4006H on piping, the pipe should
be 1 in. (25 mm) diameter or larger for accurate

temperature sensing.

1. Remove any insulation from the pipe.
2. Thoroughly scrape off all scale, rust or paint.

3. Mount controller as shown in Fig. 3 using

adjustable pipe strap furnished.

When mounting the L4006H on a tank, use a pipe strap
(not provided) of appropriate length for the tank. Fit the

pipe strap through the slot in the mounting bracket. See
Fig. 3.

Wiring

WARNING

Electrical Shock Hazard.
Can cause serious injury, death or equipment

damage.
Disconnect power supply before connecting

wiring to avoid electrical shock or equipment
damage.

All wiring must comply with local codes and ordinances

regarding wire size, insulation, enclosure, etc. See Fig. 4
and 5 for typical diagrams of Aquastat® Controllers used

in heating systems.

Use these Aquastat Controllers with copper wire only.

Fig. 3. Mount L4006H directly on surface.

Fig. 4. Hookup for oil-fired, summer-winter, hydronic

system with domestic hot water. This is typical

where control for domestic hot water is added, or

where each Aquastat Controller is mounted in a

separate location.

M8771

ENCLOSED
SENSING BULB

PIPE

ADJUSTABLE
PIPE STRAP

AQUASTAT¤
CONTROLLER
CASE

IGNITION

BURNER

L4006B OR L4007B
CIRCULATOR
AQUASTAT¤
CONTROLLER

CIRCULATOR

L4006A OR L4007A LOW LIMIT
AQUASTAT¤ CONTROLLER

L1
(HOT)

L4006A OR L4007A
HIGH LIMIT
AQUASTAT¤
CONTROLLER

24 VOLT
THERMOSTAT

RA832A
SWITCHING RELAY

PROTECTORELAY¤
CONTROL

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.

USE L4006E FOR MANUAL RESET.

M2855A