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Hammer Cassy Series Manual
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Hammer Cassy Series Manual

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GUIDE TO THE PRODUCTS FOR CASSY SERIES

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Summary of Contents for Hammer Cassy Series

  • Page 1 GUIDE TO THE PRODUCTS FOR CASSY SERIES...
  • Page 2 CONTENT ▄ General Features ▄ Nomenclature ▄Performance data table Cassy Series ▄Correction ratio ▄Wiring diagram ▄Dimension drawing ▄Controller system introduction ▄Optional parts introduction General Features: Casing: Casing is made of high quality galvanized steel. Thanks to a integrated blister process ,ensures there is no any water leakage because of no welding points.It adopts EPS material overal foaming and bonded to the drain pan.It looks elegant and light...
  • Page 3 blower is adopted to make sure the best heat transfer efficiency.The header is made of brass and thanks to the design, the water flow distributes even and less head loss is achieved which improves the heat exchange performance.Thanks to the good matching of the fan blower and the new designed air deflector,the performance has been improved 15%.
  • Page 4 stepping motor 10.Blower: Single air inlet radial fan,fan assembly mounted on anti-vibrating supports guarantees extremely quiet. 11.Filter: Adopt Nylon filter with easy remove design 12.Control system:flexible control way,standard remote handset control(wired wall pad and modbus function optional) 13.Fresh air from outdoor can be introduced into room which improves the indoor air quality fresh air inlet duct outlet 14.Easy Maintenance:...
  • Page 5 14.2 available to inspect or replace fan and motor after removing air guide ring Cassy EH20 Nomenclature: 1: Cassy: cassette fan coil unit 2. KM: Factory Version No. 3. 1: 1 way air supply 4: 4 way air supply 4. V: 2 pipe P: 4 pipe 5.
  • Page 6 Performance data table(2 PIPE): KM4-V 1020 1360 1700 2040 2380 Air flow m3/h 1020 1275 1530 1785 1020 1190 2.12 3.09 3.94 4.32 5.87 7.32 9.59 11.46 13.04 11.0 Total Cooling Cap. Sensi 3.37 4.81 6.21 7.01 7.66 9.62 12.42 15.47 17.43 20.16...
  • Page 7 Performance data table(4 PIPE): KM4-P 1020 1360 1700 2040 2380 1020 1275 1530 1785 Air flow 1020 1190 1.76 2.53 3.19 3.47 4.25 5.19 6.01 8.07 9.05 9.81 1.41 2.13 2.59 2.81 3.49 4.28 5.07 6.72 7.55 8.25 Total 1.08 1.56 1.94 2.11...
  • Page 8 Correction Ratio Correction coefficient table --cooling dry bulb 24℃ 25℃ wet bulb total capacity sensible capacity total capacity sensible capacity 17℃ 18℃ 19℃ 19.5℃ 20℃ 21℃ 22℃ dry bulb 26℃ 27℃ wet bulb total capacity sensible capacity total capacity sensible capacity 17℃...
  • Page 9 Remarks：The above correction coefficient value is the corrected value for the fan coil unit capacity under different return air temperature Correction coefficient table-heating dry bulb 18℃ 19℃ 20℃ heating capacity 108% 104% 100% dry bulb 21℃ 22℃ 23℃ 24℃ heating capacity Correction coefficient table-cooling under different inlet water temp inlet water temp 5℃...
  • Page 10 KM4-05/06/08 air vent mounting brackets KM4-10/12/14 panel Drainge outlet...
  • Page 11 Controller system introduction Remote Handset Controller Transmission source used for Sleep Button sending control signal to the Sleep mode will automatically air-conditioning unit adjust temperature and save energy LCD DISPLAY when you are sleeping. Up Button MODE Button Press button to increas temperature 1℃ Press button to select Auto mode step.(Max:30℃) ℃...
  • Page 12 WALL PAD (OPTIONAL) 1 -- ON/OFF Button Press the button, the unit will be turned on or off. 2 -- LED signal 3 -- Room temperature Sensor 4 -- Real time o'clock 5 -- Unit Number No.00 is the master unit. You can set slave units(No.01--31) parametres on the master wall pad.

  • Page 13: System Operation

    C O N T R O L S S P E C I F I C AT I O N 2 PIPE HOT AND CHILLED WATER CASSETTE WITH MOTORIZED VALVE MASTER – SLAVE CONTROL (OPTIONAL) AND COMPUTER MANAGEMENT SYSTEM CONTROL (OPTIONAL) 1.0 ABBREVIATIONS Ts = Setting temperature Tr = Room air temperature sensor...
  • Page 14  When MAIN POWER SUPPLY is ON : With motorized valve: the master unit will respond with 3 beeps. The slave unit will respond with 1 beep. Without motorized valve: the master unit will respond with 4 beeps. The slave unit will respond with 2 beeps. ...
  • Page 15  If Tr <= Ts-1, heat operation is activated, MTV is turned on. AUX1 is closed. Indoor fan runs at the set speed.  If Tr>= Ts, heat operation is terminated, MTV is turned off. AUX1 is opened. Indoor fan repeatedly runs at low fan speed for 30 seconds and stops for 3 minutes.

  • Page 16: Dehumidification Mode

     If Ti >38 C, when MTV is on, AUX1 is closed and Indoor fan runs at set speed.  If indoor coil temperature sensor is damages, pre-heat time is set for 2 minutes and Indoor fan runs at speed. 2.G.1 Pre-Heat-------TZ-KM-V6.2 C(D) FOR KM4 WITH ELECTRICAL HEATER.
  • Page 17 AUX1 and AUX2 are opened when Indoor fan is on.  Heat mode (AUX1) for unit without electrical heater. AUX1 is closed when MTV is on (in normal operation). AUX1 is opened when MTV is off or protection of indoor coil is operating. SLEEP FUNCTION ...
  • Page 18 The HEAT mode SLEEP profile is as follows: SLEEP set on SLEEP set off t(hr) Ts-1 Ts-2 Tr(℃) Hours since sleep set AUTO FAN SPEED  In cool mode, the auto fan speed will operate as the following diagram: Fan speed: Tr(℃）...
  • Page 19 Fan speed: ST-5 ST-3 ST-2 Tr(℃）  In HEAT mode, the fan speed cannot change until it has run at this speed over 30 seconds. SWING / LOUVER  If the indoor fan is operating, the louver will swing or can be stopped at a preferred location in any mode.
  • Page 20 When float switch(N/C) is opened before the unit is turned on. MTV is off. Drain pump and indoor fan will operate. After float switch is closed, MTV is on. 2.R.2 Float switch is opened, when unit is on. If the float switch is opened, the drain pump will work. When the float switch is closed, the drain pump will run continuously for 5 minutes.
  • Page 21 Wiring Diagrams Black HIGH White White...
  • Page 22 Black HIGH White White...
  • Page 23 Black HIGH White White Black HIGH White White Black HIGH White White...
  • Page 24 Optional Parts Introduction Electric heater: EH capacity Cassy model Remark KM4-02/03 with relay KM4-04/047/05 with relay KM4-06/08 with relay KM4-10/12/14 with relay External drain pan Supply as optional part and will be backed into unit carton box to collect valve connection condensate water Motorized valve kits...
  • Page 25 Actuator and valve 2.2（2.5） 0.20 body fixed together HR-G2-3/4 3/4"(20mm) 3.0（3.5） 0.18 HR-G2-1/2-S2 1/2"(15mm) Actuator is easily 2.2（2.5） 0.20 dismantled from HR-G2-3/4-S2 3/4"(20mm) 3.0（3.5） 0.18 valve body Other kinds of valve such as ball valve,please contact Hammer for further information...
  • Page 26 Brand Holding Company:Hammer(HongKong)Co.Ltd. Factory:Zhejiang Hammer Air Conditioning Co.ltd. Factory Add:West Renmin Rd, Cao’e Stree, Shangyu City, Zhejiang Province,P.R.China Oversea sales office: Tel:0086-21-61066961 Fax:0086-21-61066961-821 http://www.hammerair.com http://www.hammerair.com...