S.Installing Optional Controls (if applicable):

1.Install M&M 750P-MT-120 Probe Low Water Cut Off (LWCO)

a.Apply thread sealant to ¾” probe and install in Tapping ‘E’, see Figure 38. Wrench hex until water tight.

b.Remove 2nd knockout from bottom of M&M 750P LWCO control case. Connect end

of harness with forked terminals to casing knockout, see Figure 41. Connect wires to terminal block as follows:

Terminal 1 - Black Wire w/ Red Tracer Terminal 2 - Pink Wire

Terminal 3 - Red Wire w/ Black Tracer Terminal 4 - Brown Wire

Terminal 5 - Violet Wire

c.Mount LWCO Control on probe and tighten screws.

d.Connect ring terminal on black probe wire from circuit board to terminal on probe and tighten wing nut.

e.Connect opposite end of M&M 750P LWCO control harness to left side junction box cover ‘B’, hole location #7 as shown in Figure 40.

(It may be necessary to clip the conduit connector nut and flex it slightly to slide it over the control harness connectors. Nut should still be able to be tightened against cover plate.)

f.Locate mating connectors labeled “LWCO Power” and “LWCO Contacts” inside left junction box. Join mating connectors which are polarized and lock together. Lightly tug on connectors to make sure they are secure.

g.Proceed to next 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.

Figure 41: Install Probe Low Water Cut Off

Install 7/8” knockout plugs (provided) to all unused holes, refer to Figure 40.

2.Install High Limit Control w/Manual Reset (L4006E)

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

b.Locate L4006E High Limit Control and remove knockout on casing closest to mounting hole. Connect end of harness with forked terminals to casing knockout. Connect orange wires to terminals on limit control, wires are interchangeable. Refer to Figure 42.

Figure 42: Install High Limit Control

c.Connect opposite end of L4006E High Limit Control harness to left side junction box cover ‘B’, hole location #5 as shown in Figure 40.

d.Locate mating connector labeled “Limit” inside left 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.

3.Install Low Fire Hold Control (L4006B)

a.Apply thread sealant to 1/2” immersion well and install in Tapping ‘J’ as shown in Figure 38. Wrench well until water tight.

b.Locate L4006B Low Fire Hold control and remove knockout on casing closest to mounting hole. Connect end of harness with forked terminals to casing knockout. Connect blue wires to terminals on limit control, wires are interchangeable. Refer to Figure 43.

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Burnham FM01FD00B manual Install Probe Low Water Cut Off

FM01FD00B specifications

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