Rooftop package air conditioner installation manual 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 in...
Page 1 of 15 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. Prot...
Page 2 of 15 outline and dimensional data srt-30ra note: “standard marking on the cover applicable to specific models; check with label data on the unit.”.
Page 3 of 15 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 ...
Page 4 of 15 installation of the unit unit support 1. The figure shows the use of the roof curb available for mounting these units . 2. The curb should be sealed and fixed to the roof by weather stripping. A suggested means of sealing the unit and roof curb as shown in the left. Duct construction - ...
Page 5 of 15 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 6 of 15 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 room & t set....
Page 7 of 15 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 ran...
Page 8 of 15 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 operatio...
Page 9 of 15 2.4 temperature setting push button or to change setting temperature from 18-30°c 2.5 dim push button or 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 remot...
Page 10 of 15 defrost approaching immediately that t outdoor coil outdoor coil is more than 3°c over 2 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. ? T outdo...
Page 11 of 15 3.8 compressor overload protection when compressor operate in heat mode and t indoor coil has high value , compressor will stop operation and alarm. (section 3.14) system will restart to operate normally when t indoor coil is lower than 42°c 3.9 reversing valve change protection revers...
Page 12 of 15 3.13 heating fail when system operate in heat mode, defrost function doesn’t activate and compressor operate at least 3 minute but t indoor coil is lower than 25°c, it will alarm. (section 3.14) system will restart to operate normally when turn off product or change mode. 3.14 error di...
Page 13 of 15 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. Caution before tur...
Page 14 of 15 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 power failure. Press the (on/off) after power restore. Fuse blown or circuit breaker tripped. R...
Page 15 of 15 symptoms probably causes remedy piping vibration support piping as required. Check for loose pipe connections. System noise compressor noisy check valve plates for valve noise. Replace compressor (worn bearing). Check for loose compressor hold- down bolts. Frosted or swearing suction l...
