Installation

24F593 (120V) and 24F594 (240V) Merkur Bellows Heated Circulation Kit

NOTE: See your separate heater manual, supplied, for heater installation and electrical requirements.

NOTE: Apply pipe sealant (19) to all non-swiveling threads.

NOTE: On pumps with a 3/4 npt fluid inlet, use bushing (12) to allow connection of the swivel adapter (13).

1.See FIG. 4. Assemble the bushing (12, if needed) and swivel adapter (13) to the pump inlet. Attach the suction hose kit (16) to the adapter.

2.Screw one branch of the 3-way valve (14) into the 1/4 npt port of the adapter (13). Attach the elbow (28) and drain hose (15) to the opposite branch of the valve.

3.Assemble the knob (20), reducer nipple (9), bushing (6), and the male end of the swivel (8) to the back pressure valve (5). Screw the swivel (8) onto the middle threads of the 3-way valve.

4.Screw the 90° swivel (3) onto the heater (4) fluid inlet.

5.Attach the heater hose (25) as follows:

a.On pumps with a 3/8 npt fluid outlet, screw the female end of the swivel (17) onto the pump out- let fitting. Connect the heater hose (25) between the swivel (17) and the 90° swivel (3) at the heater inlet. The bushing (18) is not needed.

b.On pumps with a 3/4 npt fluid outlet, screw the female end of the bushing (18) onto the pump outlet fitting. Connect the heater hose (25) between the bushing (18) and the 90° swivel (3) at the heater inlet. The swivel (17) is not needed.

c.On pumps with a 1/2 npt fluid outlet, connect the heater hose (25) between the pump fluid outlet and the 90° swivel (3) at the heater inlet. The swivel (17) and bushing (18) are not needed.

6.Screw the nipple (21) into the heater (4) fluid outlet. Screw the fluid filter kit (22) inlet swivel onto the nip- ple.

7.Ground the pump as explained in your separate pump manual.

8.Connect the fluid supply line to the fitting at the fluid filter outlet.

9.Connect the fluid return line (R) to the reducer nip- ple (9) at the inlet of the back pressure valve (5). Use the back pressure valve to adjust fluid pressure in the circulation system.

10.Use the 3-way valve (14) to direct circulating fluid back to the pump through the adapter (13), or to a container through the drain hose (15).

11.See your separate pump and heater manuals for operation, maintenance, repair, and parts informa- tion.

3A1203B