Manual
Installation
& Operation
/Chino
RCD
REV.0105
DROP IN REFRIGERATED SELF SERVICE
RCD
DROP IN REFRIGERATED SELF SERVICE
P/N IGSS-RCD-0105
INSTALLATION & OPERATION GUIDE
Table of Contents
IGSS-RCD-0105
General Instructions
THIS BOOKLET CONTAINS INFORMATION ON:
General Instructions ................................................. 2
Cut & Plan Views ....................................................... 3
Installation ................................................................. 5
Plumbing .................................................................... 5
WASTE OUTLET AND P-TRAP .............................................................................. 5
Condensing Unit Installation Requirements ....................................................... 5
Refrigeration ............................................................. 6
T-STAT LOCATION.................................................................................................. 6
Electrical .................................................................... 7
WIRING COLOR CODE ......................................................................................... 7
User Information ...................................................... 8
STOCKING.............................................................................................................. 8
CASE CLEANING.................................................................................................... 8
PLEXIGLASS & ACRYLIC CARE .............................................................................. 9
Maintenance .............................................................. 9
ELECTRICAL PRECAUTIONS ................................................................................... 9
REPLACING FLUORESCENT LAMPS ....................................................................... 9
Electrical and Refrigeration Specifications ............ 10
Electrical Schematics ............................................... 11
Appendices ................................................................ 13
APPENDIX A. – Temperature Guidelines ............................................................ 13
APPENDIX B. – Application Recommendations.................................................. 13
APPENDIX C. – Field Recommendations -......................................................... 13
APPENDIX D. – Recommendations to user - .................................................... 14
RCD - Drop in refrigerated counter-top self service
case.
SHIPPING DAMAGE
All equipment should be thoroughly examined for
shipping damage before and during unloading.
This equipment has been carefully inspected at our
factory and the carrier has assumed responsibility for
safe arrival. If damaged, either apparent or concealed,
claim must be made to the carrier.
APPARENT LOSS OR DAMAGE
If there is an obvious loss or damage, it must be noted on
the freight bill or express receipt and signed by the
carrier’s agent; otherwise, carrier may refuse claim. The
carrier will supply necessary claim forms.
CONCEALED LOSS OR DAMAGE
When loss or damage is not apparent until after equipment is uncrated, a claim for concealed damage is made.
Make request in writing to carrier for inspection within
15 days, and retain all packaging. The carrier will supply
inspection report and required claim forms.
SHORTAGES
Check your shipment for any possible shortages of
material. If a shortage should exist and is found to be
the responsibility of Hussmann Chino, notify Hussmann
Chino. If such a shortage involves the carrier, notify the
carrier immediately, and request an inspection. Hussmann
Chino will acknowledge shortages within ten days from
receipt of equipment.
HUSSMANN CHINO PRODUCT CONTROL
The serial number and shipping date of all equipment
has been recorded in Hussmann’s files for warranty and
replacement part purposes. All correspondence pertaining to warranty or parts ordering must include the
serial number of each piece of equipment involved, in
order to provide the customer with the correct parts.
Keep this booklet with the case at all times for future reference.
/Chino
A publication of
Hussmann® Chino
13770 Ramona Avenue • Chino, California 91710
(909) 628-8942 FAX
(909) 590-4910
(800) 395-9229
The Hussmann warranty is printed on the back
of this guide.
2
Rev.0105
9"
Fan
46"
43"
11/2"
11/2"
18
1
/
2
"
5
1
/
4
"
25"
RCD 25
Shown with light, 25" depth, and
9" height options
20
1
/
2
"
6
7
/
8
"
1
/2"
19
Cut & Plan Views
Optional
Light
Optional Step
RCD - Remote
Shown with Options
Scale = 3/4"
Optional
Light
10"
/8"
7
6
/4"
1
5
"
4
/
1
2
Optional
Step
9"
7
/8"
10
/8"
7
30
/4"
1
14
/8"
7
6
19"
/4"
1
4
36" 8"
25"
RCD
Self-Service
Scale = 3/4"
1/4
6
38 3/8
29 1/2
47
55 5/8
4 3/8
14 5/8
13
COIL
24 5/8
RCD
Shown installed into
SC-Counter
4' - 0"
Variable-Drain is 5 5/8" off case-center
13 1/4
36
4
4 1/4
4 1/4
1' - 1 1/2"
1"
REF. DROP
1
/2"
DRAIN
5
5
/8"
C
/
L
ELECELEC
1
/8"4
3
3
Installation
LOCATION
The refrigerated merchandisers have been designed for
use only in air conditioned stores where temperature
and humidity are maintained at or below 75°F and 55%
relative humidity. DO NOT allow air conditioning,
electric fans, ovens, open doors or windows (etc.) to
create air currents around the merchandiser, as this will
impair its correct operation.
Product temperature should always be maintained at a
constant and proper temperature. This means that from
the time the product is received, through storage,
preparation and display, the temperature of the product
must be controlled to maximize life of the product.
UNCRATING THE STAND
Place the fixture as close to its permanent position as
possible. Remove the top of the crate. Detach the walls
from each other and remove from the skid. Unbolt the
case from the skid. The fixture can now be lifted off the
crate skid. Lift only at base of stand!
SETTING AND JOINING
LEVELING
IMPORTANT! It is imperative that cases be leveled
from front to back and side to side. A level case is
necessary to insure proper operation and water
drainage.
Plumbing
WASTE OUTLET AND P-TRAP
The waste outlet is located off the center of the case
on one side allowing drip piping to be run lengthwise
under the fixture.
A 7/8" copper P-trap is supplied with each fixture. The
P-trap must be installed to prevent air leakage and
insect entrance into the fixture.
NOTE: PVC-DWV solvent cement is recommended.
Follow Hussmann’s instructions.
INSTALLING CONDENSATE DRAIN
Poorly or improperly installed condensate drains can
seriously interfere with the operation of this refrigerator, and result in costly maintenance and product
losses. Please follow the recommendations listed below
when installing condensate drains to insure a proper
installation:
1. Never use pipe for condensate drains smaller than
the nominal diameter of the pipe or P-trap supplied
with the case.
2. When connecting condensate drains, the P-trap
must be used as part of the condensate drain to
prevent air leakage or insect entrance. Store plumbing system floor drains should be at least 14" off the
center of the case to allow use of the P-trap pipe
IGSS-RCD-0105
Counter Installation
1. Be sure to level the counter where the case is to be
installed.
2. Cut a hole in the top, 25” deep x appropriate length
(Standard cases come in 4’, 5, and 6’ lengths.
3. Apply a bead of silicone around the opening.
4. Slide the unit into the hold.
Counter Requirements
Ventilation must be provided for exhaust and intake air.
Condensing Unit Installation Requirements
For proper operation of the Condensing Unit provide
an opening with adequate exhause and intake as follows:
≤1 1/2 hp: minimum of 2 vents totalling 150 sq. in.
≥1 1/2 hp: minimum of 2 vents totalling 200 sq. in.
It is the contractor’s responsibility to install
case(s) according to local construction and
health codes.
section. Never use two water seals in series in any
one line. Double P-traps in series will cause a lock
and prevent draining.
3. Always provide as much down hill slope (“fall”) as
possible; 1/8" per foot is the preferred minimum.
PVC pipe, when used, must be supported to maintain the 1/8" pitch and to prevent warping.
4. Avoid long runs of condensate drains. Long runs
make it impossible to provide the “fall” necessary for
good drainage.
5. Provide a suitable air break between the flood rim of
the floor drain and outlet of condensate drain. 1" is
ideal.
6. Prevent condensate drains from freezing:
a. Do not install condensate drains in contact with
non-insulated suction lines. Suction lines should be
insulated with a nonabsorbent insulation material
such as Armstrong’s Armaflex.
b. Where condensate drains are located in dead air
spaces (between refrigerators or between a
refrigerator and a wall), provide means to prevent
freezing. The water seal should be insulated to
prevent condensation.
4
Rev.0105
Refrigeration
REFRIGERANT TYPE
The standard refrigerant will be R-22 unless otherwise
specified on the customer order. Check the serial plate
on the case for information.
PIPING
The refrigerant line outlets are located under the case.
Locate first the electrical box, the outlets are then on
the same side of the case but at the opposite end.
Insulate suction lines to prevent condensation drippage.
REFRIGERATION LINES
LIQUID SUCTION
3/8" O.D. 5/8" O.D.
NOTE: The standard coil is piped at 5/8" (suction); however,
the store tie-in may vary depending on the number of
coils and the draw the case has. Depending on the case
setup, the connecting point in the store may be
5
/8", 7/8", or 11/8". Refer to the particular case you are
hooking up.
Refrigerant lines should be sized as shown on the
refrigeration legend furnished by the store.
Install P-traps (oil traps) at the base of all suction line
vertical risers.
Pressure drop can rob the system of capacity. To keep the
pressure drop to a minimum, keep refrigerant line run
as short as possible, using the minimum number of
elbows. Where elbows are required, use long radius
elbows only.
CONTROL SETTINGS
See the “Case Specs” section of this guidebook for the
appropriate settings for your merchandiser. Maintain
these parameters to achieve near constant product
temperatures. Product temperature should be measured first thing in the morning, after having been
refrigerated overnight. For all multiplexing, defrost
should be time terminated. Defrost times should as
directed in the Case Specifications section of this guide.
The number of defrosts per day should never change.
The duration of the defrost cycle may be adjusted to
meet conditions present at your location.
ACCESS TO TX VALVES & DRAIN LINES
MECHANICAL - Remove product from left end of case.
Remove product racks. Remove refrigeration and drain
access panels (labeled). TX valve (mechanical only) and
drain are located under each access panel at end of the
case.
ELECTRONIC - The Electronic Expansion valve controller is located within the electrical access panel(s)
(Remote models only).
ELECTRONIC EXPANSION VALVE (OPTIONAL)
A wide variety of electronic expansion valves and case
controllers can be utilized. Please refer to EEV and
controller manufacturers information sheet. Sensors
for electronic expansion valves will be installed on the
coil inlet, coil outlet, and in the discharge air. (Some
supermarkets require a 4th sensor in the return air).
Case controllers will be located in the electrical raceway or under the case
THERMOSTATIC EXPANSION VALVE LOCATION
This device is located on the same side as the refrigeration stub. An Alco balanced port expansion valve model
is furnished as standard equipment, unless otherwise
specified by customer.
EXPANSION VALVE ADJUSTMENT
Expansion valves must be adjusted to fully feed the
evaporator. Before attempting any adjustments, make
sure the evaporator is either clear or very lightly
covered with frost, and that the fixture is within 10°F of
its expected operating temperature.
MEASURING THE OPERATING SUPERHEAT
1. Determine the suction pressure with an accurate
pressure gauge at the evaporator outlet.
2. From a refrigerant pressure temperature chart,
determine the saturation temperature at the
observed suction pressure.
3. Measure the temperature of the suction gas at the
thermostatic remote bulb location.
4. Subtract the saturation temperature obtained in step
No. 2 from the temperature measured in step No. 3.
3. The difference is superheat.
5. Set the superheat for 5°F - 7°F.
T-STAT LOCATION
T-Stats are located within the electrical raceway. Refer
to diagram below.
Optional
Light
T Stat
COIL
T Stat
RCD - Remote
Shown with Options
Scale = 3/4"
Shown with Refrigerated Rear Storage
RCD - SC
Scale = 3/4"
5
Loading...