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Hussmann Q2SSNM4SPA, Руководство по установке и эксплуатации

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P/N 3091736_C 

15

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.

Q2SSNM4SPA Merchandisers

Defrost

During defrost a –d- is shown in the display. 
This view will con- tinue up till 15 min. after the 
cooling has  resumed.

However the view of –d- will be discontinued if:
-The temperature is suitable within the 15 minutes
-The regulation is stopped with “Main Switch”
-A high temperature alarm appears

Alarms

The controller can give alarm in different situa-
tions. When there is an alarm all the light-emit-
ting diodes (LED) will flash on the controller 
front panel, and the alarm relay will cut in.

Upper alarm limit

Here you set when the alarm for high temperature 
is to start. The limit value is set in °C (absolute 
value). The limit value will be raised during 
night operation. The value is the same as the 
one set for night setback, but will only be raised 
if the value is positive.
The limit value will also be raised in connection 
with reference displacement r39.

Lower alarm limit

Here you set when the alarm for low tempera-
ture is to start. The limit value is set in °C (abso-
lute value). The limit value will also be raised in 
connection with reference displacement r39.

Signal to the alarm thermostat

Here you have to define the ratio between the 
sensors which the alarm thermostat has to use. 
S3, S4 or a combination of the two.
With setting 0% only S3 is used. With 100% 
only S4 is used.

Connections 

Power supply

115 V a.c.

Sensors

S3 and S4 are thermostat sensors.
A setting determines whether S3 or S4 or both 
of them are to be used.
S5 is a defrost sensor and is used if defrost has 
to be stopped based on temperature.

Digital On/Off signals

A cut-in input will activate a function. The pos-
sible functions are described in menus o02 and 
o37.

External display

Connection of display type EKA 163A (EKA 
164A).

Relays

The general uses are mentioned here. See also 
page 6 where the different applications are 
shown.

DO1: Refrigeration. The relay will cut in when  
 

the controller demands refrigeration

DO2: Defrost. The relay will cut in when defrost  
 

is in progress 

Содержание Q2SSNM4SPA

Страница 1: ...gas is present or even suspected do not allow untrained personnel to attempt to nd the cause The propane gas used in the unit has no odor The lack of smell does not indicate a lack of escaped gas If...

Страница 2: ...en suspected do not allow untrained personnel to attempt to find the cause The propane gas used in the unit has no odor The lack of smell does not indicate a lack of escaped gas If a leak is detected...

Страница 3: ...Configuration 13 START UP OPERATION Controller Operation 14 Controller Data 17 Start Up 18 Controls and Adjustments 18 Self Contained Startup Checklist 19 Load Limits 20 Stocking 20 Thermometer 20 MAI...

Страница 4: ...designed for only pre frozen products ATTENTION Merchandiser must operate for 24 hours before loading product Regularly check merchandiser temperatures Do not break the cold chain Keep products in co...

Страница 5: ...ng damage before and during unloading This equipment has been carefully inspected at our factory Any claim for loss or damage must be made to the carrier The carrier will provide any necessary inspect...

Страница 6: ...as possible to its permanent location and remove all packaging Check for damage before discarding packaging Remove all separately packed accessories such as kits and shelves Improper handling may cau...

Страница 7: ...ndiser s must be installed level to ensure proper operation of the refrigeration system and to ensure proper drainage of defrost water SERIAL PLATE LOCATION The serial plate is located on the inside o...

Страница 8: ...other Sealing of the lower front and rear panels on self contained mod els may hamper their removal for servicing or maintenance of the condensing unit NOTE Do not allow trim to cover any intake or d...

Страница 9: ...ath the display area The correct type of refrigerant will be stamped on each merchandiser s serial plate The refrigeration piping is leak tested The unit is charged with refrigerant and shipped from t...

Страница 10: ...ve a written safety procedure in place The safety procedure must comply with all applicable codes such as local re department s codes At minimum the following actions are required Immediately evacuate...

Страница 11: ...of the system 4 Connect hose to an evacuated recovery tank Open refrigeration gauges and recovery tank 5 Withthesuctionvalveinvacuum therefrigerantwill be recovered into the recovery tank 6 Once recov...

Страница 12: ...Ensure that the refrigeration system is properly grounded prior to charging the system with refrigerant to avoid the potential for static build up Extreme care must be taken not to over ll the refrige...

Страница 13: ...O 63044 2483 U S A Q2SSNM4SPA Merchandisers Typical Sensor to Control Configuration TEMPERATURE SENSOR DEFROST SENSOR THE EMPERATURE ENSOR THERMOSTAT SOLID STATE RELAY MAIN SWITCH POWER CORD CONTROL B...

Страница 14: ...the parameter code you want to change and push the middle buttons until value for the parameter is shown When you have changed the value save the new value by once more pushing the middle button Exam...

Страница 15: ...with reference displacement r39 Lower alarm limit Here you set when the alarm for low tempera ture is to start The limit value is set in C abso lute value The limit value will also be raised in connec...

Страница 16: ...n when rail heat is to operate Light The relay cuts in when the light has to be switched on Hotgas defrost See dia gram The relay will cut out when defrost has to be done Data communication The contro...

Страница 17: ...P N 3091736_C 17 HUSSMANN CORPORATION BRIDGETON MO 63044 2483 U S A Q2SSNM4SPA Merchandisers...

Страница 18: ...ate before loading product CONTROLS AND ADJUSTMENTS 1 The T stat controller controls refrigeration temperature This is factory installed in the control panel Adjust setpoint on the display to maintain...

Страница 19: ...in a safe place for future reference 2 Examine unit Confirm there is NO damage or concealed damage 3 Level the unit side to side and front to rear 4 Remove all shipping brackets compressor straps bolt...

Страница 20: ...oading product Proper rotation of product during stocking is necessary to prevent product loss Always bring the oldest product to the top and set the newest to the bottom Air discharge and return flue...

Страница 21: ...detergents acids chemicals or abrasives Do not use ammonia based cleaners on acrylic parts Interior Surfaces Do not use ammonia based products to clean light shields Never use abrasive cleansers or s...

Страница 22: ...roughly clean all surfaces with soap and hot water Do not use steam or high water pressure hoses to wash the interior These destroy merchandiser s sealing causing leaks and poor performance Take care...

Страница 23: ...ts Do not use cleaners containing salts as this may cause pitting and rusting of the stainless steel finish Do not use bleach CLEANING SOLAR THERMOMETER These models have solar thermometers The thermo...

Страница 24: ...ies into a limited capacity evaporation pan Debris or dirt accumulation inside the conden sate evaporation pan or on the heater coil will reduce the pan s evaporation capacity and cause premature heat...

Страница 25: ...aintain product integrity move all product to a cooler until the unit has returned to normal operating temperatures Airflow blockage increases energy consump tion and reduces the merchandiser s abilit...

Страница 26: ...air registers fans and doors etc x Check for water leaks x Clean evaporator coil s and fan blade s Do not use an acid base cleaner Rinse off any cleaner residue x Clean discharge air honeycombs or gr...

Страница 27: ...m 8 Reconnect fan to wiring harness 9 Turn on power 10 Verify that motor is working and blade is turning in the correct direction 11 Close air gaps under fan plenum Warmer air moving into refrigerated...

Страница 28: ...information or other support contact your Hussmann representative Please include the model and serial number of the product Hussmann Corporation Corporate Headquarters Bridgeton Missouri U S A 63044 2...

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