Table of Contents
Advertisement
ROOFTOP PACKAGE AIR CONDITIONER
INSTALLATION MANUAL
SRT-30RA
This manual provides the procedures of installation to ensure a safe and good standard of
operation for the air conditioner unit.
Special adjustment may be necessary to suit local requirements.
Before using your air conditioner, please read this instruction manual carefully and keep it for
future reference.
Advertisement
Table of Contents
Related Manuals for Sakura SRT-30RA
Summary of Contents for Sakura SRT-30RA
-
Page 1: Installation Manual
ROOFTOP PACKAGE AIR CONDITIONER INSTALLATION MANUAL SRT-30RA This manual provides the procedures of installation to ensure a safe and good standard of operation for the air conditioner unit. Special adjustment may be necessary to suit local requirements. Before using your air conditioner, please read this instruction manual carefully and keep it for... -
Page 2: Protection System
FEATURES Electro Galvanized Steel Panels Corrosion Resistant Cabinet - The weather proof characteristics of the panels have been significantly reinforced by the adoption of electro galvanized steel panel which have been coated with polyester powder coated paint to resist corrosion. Protection System Compressor Protection - The compressor is protected with high pressure switch, an over current relay,... - Page 3 OUTLINE AND DIMENSIONAL DATA SRT-30RA NOTE: “Standard marking on the cover applicable to specific models; check with label data on the unit.” Page 2 of 15...
-
Page 4: Installation Of The Unit
INSTALLATION OF THE UNIT Location For Installation Install the unit in such way that air distributed by the unit cannot be drawn in again (as in the case of short circuit of discharge air). Allow sufficient space for maintenance around the unit. Ensure that there are no obstructions of air flow into or out of the unit. -
Page 5: Unit Support
The units are full charged in Factory, no additional charge is necessary. The table below shows the amount charged pre unit. Refrigerant R-410A Model Charge in circuit (kg) SRT-30RA 1.35 INSTALLATION OF THE UNIT Drain piping A 1 MPT condensate drain fitting is provided. The drain pipe can be led out at the front side. -
Page 6: Major Component
Control System & Electrical Wiring Function and Specification 1. Major component -. Main unit -. Display unit -. Display cable 2 cores, length 4 metres between Main unit and Display unit -. Flush-mounted box Main Unit Display Unit Flush-mounted box Page 5 of 15... - Page 7 2. User’s Features 2.1 Power on/off Push button to on or off unit 2.2 Fan speed Push button FAN to change fan motor speed. (High, medium, low or auto) In AUTO FAN operation mode, fan motor speed will be change automatic according to the difference temperature gap between T &...
- Page 8 Dry : Air conditioner will operate to reduce room humidity. The operation in DRY MODE will be separate in to each ZONE which are ZONE A, B, C, and D as below. Zone A : Room temperature range is higher than setting temperature for 2°C. Zone B : It will be operated in room temperature range equal to setting temperature or temperature gap is...
- Page 9 Zone calculation will be determined in every 12 minutes which is one operating cycle in DRY MODE and the operation of compressor and fan motor while in each ZONE has show in the picture. By fan motor will operate before compressor starting for 30 seconds and fan motor will stop operation after compressor stop for 30 seconds. In DRY MODE, we can’t use SLEEP function or change speed of fan motor by there is no show fan motor speed on remote control HEAT : Air Conditioner will operate as heater which call HEAT PUMP...
- Page 10 2.4 Temperature setting Push button to change Setting temperature from 18-30°C 2.5 Dim Push button by holding for 3 seconds to reduce the intense of LED light. When turn off air conditioner, the intense of light will change to be normal 2.6 Remote Handset Can use function in remote control as usual such as SLEEP, TIMER 3.
- Page 11 Defrost approaching Immediately that T <3°C, Defrost timer will be counted. If T is more than 3°C over 2 outdoor coil outdoor coil minutes, Defrost timer will be reset and Defrost function will be operate when a) Compressor continue operate in heat mode over than 5 minutes and b) Defrost timer are in below condition.
- Page 12 3.8 Compressor overload protection When compressor operate in heat mode and T has high value , compressor will stop operation and indoor coil alarm. (Section 3.14) System will restart to operate normally when T is lower than 42°C indoor coil 3.9 Reversing valve change protection Reversing valve can change stage after compressor stop operation more than 1 minute 3.10 Anti overheat (Outdoor coil) protection...
-
Page 13: Error Display
3.13 Heating Fail When system operate in HEAT MODE, defrost function doesn’t activate and compressor operate at least 3 minute but T is lower than 25°C, it will alarm. (Section 3.14) indoor coil System will restart to operate normally when turn off product or change mode. 3.14 Error display When Error, Display will be show as below. -
Page 14: Electrical Wiring Diagram
Electrical Wiring Diagram SRT-30RA MAINTENANCE Warning - Disconnect from the main power supply before servicing the air conditioner unit. - Do Not pull out the power cord when the power is ON. This may cause serious electrical shocks which may result in fire hazards. -
Page 15: Troubleshooting
TROUBLESHOOTING If any malfunction of the air conditioner unit is noted, check the following fault conditions and causes for some simple troubleshooting tips. Symptoms Probably Causes Remedy Unit does not run. Power Failure. Press the (ON/OFF) after power restore. Fuse blown or circuit breaker Replace fuse or reset circuit breaker. - Page 16 Symptoms Probably Causes Remedy System noise Piping vibration Support piping as required. Check for loose pipe connections. Compressor noisy Check valve plates for valve noise. Replace compressor (worn bearing). Check for loose compressor hold- down bolts. Frosted or swearing Capillary tube clogged. Check capillary tube.