
Aquastat L4006,7,8;L6006,7,8
9 60-2104—01
220
240
100
120
140
160
180
200
MOUNTING
HOLES (3)
RIGHT SNAP
SWITCH (NO. 1)
LEFT SNAP
SWITCH
(NO. 2)
NOTCHES FOR
CAPILLARY
TUBE (4)
7/8 IN. (22 MM)
DIAMETER
KNOCKOUT
BOTH ENDS
27-1/2 IN.
(70 MM)
SENSOR
10 FT. (3.0 M)
CAPILLARY
TUBE
M4673B
1
1 SELECT MODELS HAVE SIX TERMINALS.
Fig. 9.Internal view of L4008L or L6008G..
Mount With Bulb Compression Fitting
1. Screw the fitting into the boiler or pipe tapping.
2. Slide the sealing washer onto the bulb.
3. Insert the bulb into the fitting until the bulb
bottoms.
4. Slide the split sleeve into the fitting. (See Fig.
10).
5. Place clamps A and B on the assembly so that
the sleeve is drawn into the fitting when the
screws are tigtened .
M8815B
CLAMP B
CLAMP A
CLAMP SCREWS (2)
BULB
COMPRESSION
FITTING
SEALING
WASHER
BULB
INSERTION LENGTH
APPROX. 3-3/16 IN. (81 MM)
SPLIT SLEEVE
Fig. 10. Bulb compression fitting. Use with L4006A,B;
L6008A.
Fig. 11. Capillary compression fitting. Use with L4008.
Use with L4006A,B; L6008A.
Mount With Capillary Compression Fitting
1. Screw the fitting into the boiler or pipe tapping.
2. Place the packing nut on the tubing.
3. Slide the bulb completely through the fitting.
4. Place the composition disk and four slotted
brass washers on the tubing in the order shown
in Fig. 11. Turn the brass washers so the slots
are 180 degrees apart
5. Slide the seal assembly into the fitting and
tighten the packing nut.
Duct Mounting
1. Drill a 3/4 in. (19 mm) hole in the duct wall
large enough to admit the sensing bulb into
the holder.
2. Using the holder as a template, mark and drill
holes for the bulb holder mounting screws.
(See Fig. 12).
3. Break the holder to the desired length. (See
Fig. 13).
NOTE: The holder must be long enough to hold
the sensing bulb in freely circulating air
away from the duct wall. Neatly coil the
excess capillary at the controller case or
at the bulb holder.
M8970B
Fig. 12. Bulb support. Use with L4006A,B; L6008A.
MOUNTING
3
4
5
NOTE: Make sure that the nub on clamp A
engages the space between the sleeve
and the clamp. 6.
6. Tighten the clamp screws evenly.
COMPOSITION DISK
(SLOTTED)
BOILER PLUG
CAPILLARY TUBING
EXAMPLE OF SLOTTED WASHERS
ASSEMBLED
IN PAIRS:
PACKING NUT
M8816B
IMMERSION
BULB