Zero Zone CRYSTAL MERCHANDISER RVMC24, Installation & Operation Manual

20  •  Installation & Operation

INSTALLATION & OpERATION

DOOR GASKET

upper and lower horizontal magnetized gaskets run the length of each case. The gaskets mate up to steel plates installed at the top and bottom 

of each door. A vertical gasket runs along the hinge-side of each door. The gasket seals against the handle-side of each adjacent door. At 

the end of each case, another gasket is placed on the handle-side of the door and is used to seal against the side of the case (instead of an 

adjacent door). French door cases include a sweeper gasket on the handle-side of each door.

DOOR CLOSER / ADJUSTING DOOR TENSION

The door closer is a spring cartridge that automatically closes the door. It is located on the bottom of the hinge side of the door. A square pin 

inside the door closer fits into a square opening on the door, transferring the spring tension to the door. This means that the square pin must be 

aligned with the square opening when installing a door. An adjustment screw on the front can be used to increase or decrease tension.

1.  Open the door to observe current door tension. A properly tensioned door will close itself gently and not swing open.
2. 

Use a flathead screwdriver to turn the door tension screw (

See Figure 27

). 

Do not use power 

tools; a screwdriver allows for more control.

3.  To increase tension, hold the door open 2 inches and turn the screw counter-clockwise until 

the door begins to close. Once it closes, increase tension by 2 more turns.

4.  To decrease tension, turn the screw clockwise.

The screws holding the door closer are secured with removable threadlocker gel; extra force will be 

necessary to remove them.

REMOVING A DOOR

5.  Remove the top case trim that covers the door hinges.
6.  Turn door tension screw clockwise until door does not close on its own. This removes tension between the door and torque adjuster.
7.  Disconnect the hold-open bracket from the bottom of the door (

See Figure 25 on page 19

).

8.   Remove shoulder bolt and bushing on the top of the hinge side of the door (

See Figure 26

). Only remove the bolt holding the door; do not 

remove the bolts attached to the case.

9.  Pull the top corner of the door away from the case. 

The door is heavy. Be prepared to hold the weight of the door.

10.  lift the door up and clear of the torque adjuster and set down carefully. 

For safety, do not lift the door by the handle.

INSTALLING A DOOR

1.  lift the door and set it in the door closer. line up the door so the square hole in the door sets into the square rod of the door closer. The 

door is heavy. For safety, lift the door by the rails; do not lift by the handle.

2.  lean the door into position against the case. Install the washer between the mounting plate 

and the door, and install the bushing and shoulder bolt above the mounting plate and into the 

door (See Figure). You may need to get on a ladder to install the bolt and bushing. Be 

careful while doing this because the door will not be secured in place.

3.  Attach the hold-open bracket between the bottom of the door and the bottom of the case (

See 

Figure 25 on page 19

).

4.  Turn the door tension screw counter-clockwise until the door gently closes itself (

See "Door 

Closer / Adjusting Door Tension" on page 20

).

5.  Properly level the door to eliminate sag/sawtoothing (

See "Door Leveling (Door Sag/

Sawtooth)" on page 17

).

6.  Reinstall the top trim piece and electrical raceway cover on top of the case.

 FIGURE 26: Door Shoulder Bolt

 FIGURE 27: Door Tension Screw