Figure 43: Install Low Fire Hold Control

c.Connect opposite end of L4006B Low Fire Hold Control harness to right side junction box cover ‘A’, hole location #2 as shown in Figure 40.

d.Locate mating connector labeled “Low Fire

Hold” inside right junction box. Join mating connectors which are polarized and lock together. Lightly tug on connectors to make sure they are secure.

e.Proceed to next appropriate control option listed below for installation details. If no other controls are being installed at this time, secure Cover ‘A’ and Cover ‘B’ to jacket rear top panel with two (2) #8 x 1/2” lg. hex head SMS per cover. Install 7/8” knockout plugs (provided) to all unused holes, refer to Figure 40.

4.Install Low/High/Low Control or Modulating Control

a.Install Low/High/Low Control as follows (for modulating control, proceed to Step b):

i.Apply thread sealant to 3/4” immersion well and install in Tapping ‘H’ as shown in Figure 38. Wrench well until water tight.

ii.Locate L4006A Low/High/Low Control and remove knockout on casing closest to mounting hole. Connect end of harness with forked terminals to casing knockout. Connect black and gray wires to terminals on Low/High/Low Control, wires are interchangeable. Refer to Figure 44.

iii.Connect opposite end of L4006A Low/High/ Low Control harness to junction box cover ‘A’, hole location #4 as shown in Figure 40.

iv.Locate mating connector labeled “LO-HI-

LO/MOD” inside right junction box. Join mating connectors which are polarized and lock together. Lightly tug on connectors to make sure they are secure.

v.Proceed to next appropriate control option listed below for installation details. If no other controls are being installed at this time, secure Cover ‘A’ and Cover ‘B’ to jacket rear top panel with two (2) #8 x 1/2”

lg. hex head SMS per cover. Install 7/8” knockout plugs (provided) to all unused holes, refer to Figure 40.

b. Install Modulating Control as follows:

i. Apply thread sealant to 3/4” immersion well and install in Tapping ‘H’ as shown in Figure 38. Wrench well until water tight.

ii.Locate T991A Modulation control and remove knockout on casing closest to temperature control knob. Connect end of harness with forked terminals to casing knockout.

Figure 44: Install Low/High/Low Control

Connect wires to terminals as follows:

B Terminal - Black Wire w/White Tracer

W Terminal - Gray Wire

R Terminal - Red Wire w/White Tracer

iii.Install Remote Sensing Bulb into control well and secure with retaining clip. Coil excess sensor tubing as shown in Figure 45.

iv.Mount T991A Control to rear panel on left side of return manifold with two (2) self drilling #8 x 1/2” lg. hex head SMS (provided) as shown in Figure 45.

Figure 45: Install Modulation Control

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Burnham FM01FD00B manual Install Low Fire Hold Control

FM01FD00B specifications

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