Page 1
INSTALLATION MANUAL System air conditioner Installation manual English VRV II System air conditioner Installationsanweisung Deutsch VRV II System Klimaanlage Manuel d’installation Français Conditionneur d’air VRV II System Manual de instalación Español Acondicionador de aire con sistema VRV II Manuale di installazione Italiano Condizionatore d’aria a sistema VRV II RXYQ5MY1B...
Page 2
< > < > If installed as a single unit When installed in serial (Pattern 1) (Pattern 1) ≥300 ≥300 ≥10 ≥20 ≥10 ≥10 ≥500 ≥500 ≥10 ≥20 ≥100 ≥100 (Pattern 2) (Pattern 2) ≥50 ≥100 ≥50 ≥50 ≥500 ≥500 ≥100 ≥50 (Pattern 3)
Page 3
figure 13 Heating/cooling switching remote control figure 12 (Indoor –Outdoor) (Outdoor –Outdoor) figure 14 figure 15 F2 Q1 Q2 A B C F A B C C/H SELECTOR TO IN/D UNIT TO OUT/D UNIT TO MULTI UNIT figure 17 F1 F2 F1 F2 F1 F2 A B C F1 F2 F1 F2 Q1 Q2...
Page 4
[ 1 ] TO IN/D UNIT A B C F1 F2 F1 F2 F1 F2 A B C figure 19 figure 20 figure 21 figure 22 figure 23 In the case RXYQ5 type In the case RXYQ8 . 10 type [ RXYQ5 .
14.0 to 133.5kW and nominal heating capacities ranging from 16.0 to 7-3. General ................12 150.0kW. 7-4. Examples ................ 13 The RXYQ-M units can be combined with Daikin VRV series indoor 8. BEFORE OPERATION ............15 units for air conditioning purposes. 8-1. Checks before initial start-up .......... 15 The present installation manual describes the procedures for 8-2.
1-2 Standard operation limit 1-4 Option accessory The figures below assume following operating conditions for indoor To install the above outdoor units, the following optional parts are and outdoor units: also required. Equivalent pipe length ............7.5m • Refrigerant branching kit (For R410A only: Always use an Level difference ..............
Model RXYQ42MY1B RXYQ44MY1B RXYQ46MY1B Model RXYQ48MY1B Power supply Control and fan motor Type Phase Voltage 220-240 Frequency (Hz) Nominal running current 1.1×3 Voltage 380-415 380-415 380-415 Voltage torerance ±10 ±10 ±10 MAIN COMPONENTS Recommended fuses Compressor For main components and function of the main components, refer to Phase the Engineering Data Book.
INSPECTING AND HANDLING THE UNIT [Precaution] • When installing on a roof, make sure the roof floor is strong At delivery, the package should be checked and any damage should enough and be sure to water-proof all work. be reported immediately to the carrier claims agent. •...
6-2 Connecting the refrigerant piping (Refer to figure 7) 1. Knock hole The local branch piping can be connected either forward or to the 2. Drill sides (taken out of the bottom) as shown in the figure. 3. Concave section Make sure to perform the piping installation within the range of the maximum allowable pipe length, allowable level difference and allowable length after branching as indicated in chapter “Example...
Page 12
〈 〈 〈 〈 Cautions for installation of multiple outdoor units〉 〉 〉 〉 The piping between the outdoor units must be routed level or Prohibited pattern slightly upward to avoid the risk of oil detention to the piping side. to indoor unit Pattern 1 to indoor unit...
6-4 Leak test and vacuum drying Closing shutoff valve Remove the cap and turn the valve clockwise with the hexagon The units were checked for leaks by the manufacturer. wrench (JISB4648). Confirm that the valves are firmly closed before pressure test or vac- Securely tighten the valve until the shaft contacts the main body uuming.
• Charge the refrigerant to the liquid pipe in its liquid state. Since Not recommendable but in case of emergency R410A is a mixed refrigerant, its composition changes if charged You must use a torque wrench but if you are obliged to install the unit without in a state of gas and normal system operation would no longer be a torque wrench, you may follow the installation method mentioned below.
When multiple outdoor units installed: In case of 7-2 Power circuit and cable requirements RXYQ18-48MY1B A power circuit (see table below) must be provided for connection of (Refer to figure 12) the unit. This circuit must be protected with the required safety devices, i.e.
• This unit uses an inverter, and therefore generates noise, which 12. When wiring, exercise sufficient caution not to detach the acoustic insulators from the compressor. will have to be reduced to avoid interfering with other devices. The 13. Retain to the back of the column support with the accessory outer casing of the product may take on an electrical charge due clamps (2).
Page 18
3. Unit C • After knocking out the holes, we recommend you paint the 4. TO IN/D UNIT edges and areas around the edges using the repair paint to prevent rusting. 5. TO OUT/D UNIT • When passing electrical wiring through the knock holes, 6.
Caution 1. Turn ON the power to the outdoor Make sure to turn ON the power 6 hours before Be sure to keep the power line and transmission line apart from units and indoor units. starting the operation. This is necessary to warm the crankcase preliminarily by the electric heater.
Dealing with the situations where the result exceeds the maxi- mum concentration level. Where the installation of a facility results in a concentration in excess of the maximum concentration level then it will be neces- sary to revise the system. Please consult your Daikin supplier. English...