Zero Zone RMCP30 Installation Manual
Rear Load
D
D
isplay
Coolers
ZERO ZONE
Zero Zone, Inc. • 110 N. Oakridge Dr. • North Prairie, WI 53153-9792
1-800-247-4496 • FAX: 1-414-392-6450 • www.zero-zone.com
Shop Around
RMCP30 Series
RMCP24 Series
C
CRMA
Certified
INSTALLATION
and
OPERATING INSTRUCTIONS
for
06995M21000129
TABLE OF CONTENTS
SUBJECT
GENERAL INFORMATION .............................................................................. 1
INTRODUCTION ........................................................................................................ 1
INSPECTION .............................................................................................................. 1
LOCATION .............................……………................................................................ 1
INSTALLATION .........................................….................................................. 1
LEVELING ................................................................................................................. 1,3
JOINING COOLERS ......................................................…........................................ 3
DRAIN LINE ...............................................…............................................................ 3
CART BUMPER .......................................................................................................... 3
REFRIGERATION ...................................................................................…...... 5
GENERAL ......................................................…........................................................ 5
REFRIGERANT PIPING .........................................................................….................. 5
TEMPERATURE CONTROL ........................................................................................ 5-6
LEAK CHECK-EVACUATION-CHARGING ............................................................... 6
ELECTRICAL ..................................................................................…............. 6
DEFROSTING ................................................................................................. 6
USER INFORMATION .................................................................................... 6
CLEANING ......................................................…...................................................... 6
SHELF LOCATION ..................................................................................................... 6
LANE DIVIDERS …..................................................................................................... 7
SHELF GLIDES …....................................................................................................... 7
PRE CUT SALAD RACK ............................................................................................ 7
FLORAL SHELVES ..................................................................................................... 7
LOADING THE COOLER .......................................................................................... 8
LIGHT SWITCH .......................................................................................................... 8
SERVICE ........................................................................................................ 8
CART BUMPER .......................................................................................................... 8
EVAPORATOR .......................................................................................................... 8
EXPANSION VALVE .................................................................................................. 8
EVAPORATOR FANS ....………................................................................................. 8
LIGHTS ............................................................................................…………………. 9
BALLASTS ..............................................................…......................……….………… 9
ALTERNATE LIGHTING - T8 ..............................................................…...................... 9
CONDENSATE EVAPORATION SYSTEM ...........................................………………. 9
RMCP30, RMCP30RL, RMCP30SA, RMCP24
TABLES
TABLE 1 RMCP30/RMCP30RL LINE SIZE R22 ........…………………......…................
TABLE 2 RMCP30SA LINE SIZE R22 ..................…..............………………………......
TABLE 3 RMCP24 LINE SIZE R22 ...........…………....…...............…...........................
FIGURES
FIGURE 1 LEVELING CASES PRIOR TO JOINING .........................…............….…...
FIGURE 2 CAULKING CASES TO BE JOINED ....……....................…..............……...
FIGURE 3 JOINING 30” DOOR REACH-IN COOLERS .........................…......……..
FIGURE 4 INSTALLING THE CART BUMPER …………………...........................……...
FIGURE 5 JOINING 30” DOOR REAR LOAD OR SHOP AROUND COOLERS ……
FIGURE 6 JOINING 24” DOOR REACH-IN COOLERS .........................…......……..
FIGURE 7 INSTALLING TEE STRIPS ……………………….........................…......……..
FIGURE 8 TEMPERATURE CONTROL SETTINGS ….........................….........…....…...
FIGURE 9 TYPICAL TEMPERATURE CONTROLS ….........................…..............….....
FIGURE 10 LANE DIVIDERS .......………………………………….....................….…...
FIGURE 11 SALAD RACKS .......……………………………...….......................….…...
FIGURE 12 SOCKET DETAIL ......................…………………….......….........................
FIGURE 13 RMCP30 SPECIFICATION SHEET ...............................….........................
FIGURE 14 RMCP30RL SPECIFICATION SHEET ........................................................
FIGURE 15 RMCP30SA SPECIFICATION SHEET .......................................................
FIGURE 16 RMCP24 SPECIFICATION SHEET ................................................…........
FIGURE 17 RMCP30/RMCP24 WIRING DIAGRAM ........................................…....
WARRANTY ................................………………..............................................
RMCP30, RMCP30RL, RMCP30SA, RMCP24
GENERAL INFORMATION
Location
Introduction
The information contained in this manual pertains to
the following display coolers: RMCP30, RMCP30RL,
RMCP30SA and RMCP24. These are used for merchandising refrigerated packaged food. The number
30 in the model number designate a case with 30”
wide doors. The number 24 in the model number
indicates 24” wide doors.
These display coolers are designed to operate in an
air-conditioned store where the temperature is maintained at 75°F or lower and the relative humidity is
55% or lower.
RMCP30RL (REAR LOAD)
This case design allows product to be loaded through
solid sliding doors at the rear of the case. The case is
designed to have the back of case built into the wall of
a cooler. The rear doors do not have lamps but are
heated to prevent condensation. Detailed instructions
can be found in the door manufacturer’s instruction
sheet.
Do not locate this equipment where it will be exposed
to the direct rays of the sun or near a source of radiant
heat or airflow.
Be certain that the floor under the installation is of
sufficient strength to prevent sagging. out of level
conditions will result in reduced performance.
Wall cases, and back to back cases, should be positioned to allow a 1 - 4 inch space behind the back of a
unit. This space will allow air to circulate behind the
unit.
INSTALLATION
Leveling (See Figure 1)
Refrigeration equipment must be installed level to
allow efficient operation of the refrigeration coils and
complete drainage of defrost water. Since a level area
is seldom available, the following steps are recommended to insure a level installation.
1. Measure off and mark on floor the exact dimensions of the case line-up. (Check blueprints).
RMCP30SA (SHOP AROUND)
This case design allows product to be shopped from
either side. The evaporator fans face the front of the
case. The main wiring compartment is located behind
the kick plate in the front of the case. If ballasts are
supplied by Zero Zone and not the door manufacturer,
they will be located behind the kick plate.
Inspection
These display coolers were carefully inspected and
properly packed to ensure delivery in the best possible
condition. The equipment should be checked for
damage immediately upon delivery. ALL CLAIMS FOR
DAMAGES MUST BE FILED WITH THE TRANSPORTATION
COMPANY - NOT WITH Zero Zone. The carrier will
supply necessary report and claim forms.
2. Snap a chalk line at the locations for the front and
back positions of the base rails.
3. Mark locations of all joints (front and back).
4. Using a transit, find the highest point along both
base rail position lines. using the high point as a
reference, mark the difference directly on the floor
at each joint (front and back).
5. If a transit is not available, a water level can be
used to mark reference elevation points. Water
levels can be purchased from a contractor supply
house for a minimal cost.
6. A string level can also be used to mark elevation
points. The string level should only be used on
short line-ups to avoid string sag.
RMCP30, RMCP30RL, RMCP30SA, RMCP24
Mark floor level differences
Measure and mark exact case
Figure 2: Caulking cases to be joined
Water level elevation points
Shim joints to equal highest points
Figure 3: Joining 30” Door RMCP30 Reach-In Coolers
RMCP30, RMCP30RL, RMCP30SA, RMCP24
7. Place the required number of shims (supplied) at
each joint (front and back) to equal the highest
point. Tape all shims in place.
8. Place additional support shims at the center of four
and five door case base rails (front and back).
9. Use a carpenter’s level to check installation as you
go. The case should be level from front to back and
side to side. Install the case at the highest point
first, if part of a line-up.
Joining Coolers
These reach-In coolers have been engineered for
continuous display. This means that any number of
cases can be joined together to create a display of any
desired length. Reach-In coolers are built on permanent steel skids to promote easy installation. The
cases can be moved on pipe rollers or with a Johnson
Bar. The ends of the case are protected with a removable steel plate.
Drain Line
Condensate water drains from the evaporator through
a plastic hose mounted at the rear of the case. The
tubing should be free of kinks and dirt so water drains
freely. The case drain is located at the center of the
cooler in the floor pan. The 1 inch PVC drain outlet is
located at the center front of the cooler behind the kick
plate.
The tee, drain trap, and plug are supplied standard
with the case. Install a tee to the outlet pipe and a PVC
drain trap to the tee. Plug the open end of the tee
using the clean-out plug supplied with the drain trap
kit. The drain line must be pitched away from the case
a minimum of 1/4 inch per foot.
Cart Bumper
The cart bumper should be installed at the bottom
front of the case. (See Figure 4) The assembly is
adjustable to compensate for uneven floors.
To install Reach-Ins, perform the following steps:
1. Set the first Reach-In into the desired position and
level it. Run a 3/8-inch diameter bead of Butyl caulk
½ inch in from both the inner and outer surfaces of
the case end. (See Figure 2)
2. Push the second Reach-In against the end of the
first. Level the second Reach-In. See Figure 3 for
30” Door cases; Figure 5 for 30” Door Reach-In Rear
Load and Shop Around cases; and Figure 6 for 24”
Door Reach-In Coolers. Install tee strips between
the door frames at case joints on 30” door cases
(See Figure 7). Use the special screws and nuts
provided.
3. Start the joining bolts, but do not tighten them.
Begin tightening the bolts at the top rear, working
down the back of the case and up the front making
sure that the front seams are flush.
Center and hook the bumper assembly on the hanger
provided.
In continuous line-ups, place a kick plate joint strip at
each joint. On case ends, lineup the end kick plate
with the front mounting holes. Fasten the rear of the
end kick plate to the case using self drilling (TECH)
screws.
Slide the front kick plate behind the bumper assembly
and in front of the end kick plate or kick plate joint strip.
Install three screws (two screws on 2-door only) to hold
the kick plate and bumper in place. The screws attach
the kickplate to a bracket with a speed nut
(timmerman clip).
A bumper joint strip can be installed over the bumper
at the joints. This is standard on the Euro Style
bumper.
RMCP30, RMCP30RL, RMCP30SA, RMCP24
Figure 4: Installing The Cart Bumper
Figure 6: Joining 24” Door Reach-In Coolers
Figure 5: Joining 30” Door Rear Load or Shop
Around Reach-In Coolers
Figure 7: Installing Tee Strips
RMCP30, RMCP30RL, RMCP30SA, RMCP24
TEMP.
TIME CLOCK DEFROST
TEMP.
R-22
64
40
OFF CYCLE DEFROST
PRODUCT 41° F TO 37° F
4268R-22
Figure 8: Temperature Control
REFRIGERATION
Temperature Control
General
Unless otherwise specified, the liquid and suction
connections are made on top of the case. (Figures 13-
16.) Alternate locations are out the back of case. After
connections are made, the refrigeration access hole in
the cooler must be sealed completely with aerosoldispensed Urethane insulation or equivalent.
Refrigerant Piping
Correct refrigeration line sizing and installation is
essential for proper system operation. The following
tables (Tables 1 -3) list R-22 line sizes for different
combinations of coolers. A P-trap must be installed at
the bottom of all vertical suction risers.
The compressor should be installed as close as possible to the coolers to reduce pressure drop. If the
compressor is located above the cooler, use one size
smaller tube for the suction tube riser only and install a
shallow trap at the bottom of the riser. Use a flexible
connection (vibration eliminator) between the suction
line and compressor.
A low pressure or temperature control located to
sense return air can be used to control cooler temperature. The control should be selected with adequate contact capacity for the switching load. In rack
systems, an evaporator pressure-regulating valve may
be used to control the evaporating temperature.
The settings (See Figure 8) are approximate due to
variations in gauge accuracy, differences in compressor efficiency, and line pressure drop. These should
be adjusted as store or stocking conditions change.
The suction and liquid lines may be taped together to
form an external heat exchanger. Insulate the tubing
for at least 20 feet from the cooler outlet.
A liquid line drier should be installed. Install a moisture indicating sight glass at the outlet end of the drier.
PRODUCT 41° F TO 37° F
Pressure
(psig)
Cut In 37° F
Cut Out 33° F
Pressure
(psig)
Cut In 40° F
Cut Out 34° F
RETURN
AIR
RETURN
AIR
Figure 9: Typical Temperature Controls
RMCP30, RMCP30RL, RMCP30SA, RMCP24
Loading...