White Rodgers 8J48A Installation, Dial Setting, Preparing To Mount Control, Mounting The Control

INSTALLATION

NOTE

If the boiler manufacturer recommends a control location, then follow such recommendations. Otherwise, locate the control as close to the top of the boiler as possible, but not in the same section of the boiler that has fittings for domestic hot water. Never locate the control near a return pipe to the boiler.

PREPARING TO MOUNT CONTROL

This control can be mounted vertically or horizontally.

1.Loosen the set-screw holding the well in place (see fig. 1).

2.Push down and out on the well and carefully slide the capillary tube in slot.

3.Place the well in new notch and tighten the set-screw to secure the well in the new position.

MOUNTING THE CONTROL

1.Disconnect electrical power to the boiler.

2.Completely drain the boiler.

3.If a well tapping is not provided, prepare one near the top of the boiler.

4.Sparingly apply pipe joint compound to the well threads and install well.

NOTE

Use hex on well for tightening the well. Do not attempt to tighten by using the case as a handle.

5.Refill the boiler and check for water leaks.

6.Insert the bulb element into the well until it bottoms.

7.Locate and secure the coil of excess tubing so that it cannot touch electrical components.

8.Fit the back of the case into the well and tighten using the set- screw on the back panel.

DIAL SETTING

Slot

Capillary

Tube

Well

Set-screw

Figure 1

MOUNTING TO EXISTING WELL

(For use with well adaptor, which may be ordered separately.)

For best control performance, a well comparable to that shown in fig. 2 is recommended. However, by using a heat conductive grease, these controls will give satisfactory performance when used with large-diameter existing wells. If desired, both the conductive grease and replacement wells may be ordered separately (see fig. 2).

C

			A		B
Well No.		Description		A		B		C
89-0211		1⁄2” Std. Shank		113⁄16”		3”	35⁄16”
89-0212	1⁄2” Std. Ext. Shank			35⁄16”		3”	35⁄16”
89-0213		3⁄4” Std. Shank		113⁄16”		3”	35⁄16”
89-0214	3⁄4” Std. Ext. Shank			35⁄16”		3”	35⁄16”
89-0215	3⁄4” Extra Ext. Shank			413⁄16”		3”	35⁄16”
Conductive Grease No. 145-0163

Figure 2

When replacing an existing control, adjust the setting of the high limit to correspond with that of the old control.

Set the pointer to the temperature at which the contacts of the high limit are to open (see fig. 3)

Models with a preset dial stop are to be adjusted by authorized service personnel only.

To reset the dial stop, loosen the stop adjust screw and reposi- tion the stop to the desired setting.

Retighten the stop adjust screw.

!WARNING

DO NOT set the stop higher than the original manufacturer’s recommended setting. Personal injury and/or property damage may result.

2

Stop

Stop

Adjust

140Screw

160220

Pointer

180 200

Figure 3