Combination; Standard Operation Limit; Standard Supplied Accessories; Option Accessory - Daikin VRV IV-S Series Installation Manual

2-1 Combination

The indoor units can be installed in the following range.
• Be sure to connect a dedicated indoor unit. See the catalog for
indoor unit models which can be connected.
• Total capacity/quantity of indoor units
Outdoor unit Total capacity of indoor units Total quantity of indoor units
RXTQ60 type................ 8.35~21.7kW
28.5~74.1 MBh

2-2 Standard operation limit

Normal operation
The figures below assume following operating conditions for indoor and
outdoor units:
Equivalent pipe length .................................................... 25ft. (7.6m)
Level difference.................................................................... 0ft. (0m)
Cooling
122(50)
Rated
cooling
95(35)
capacity
23(–5)
82.4
50 57.2 67 77
(10) (14) (19) (25) (28)
Indoor temperature
°FWB (°CWB)
Range for operation
Range for pull down operation
Range for warming up operation

2-3 Standard supplied accessories

Make sure that the accessories shown below are all present.
(The accessories can be found behind the front panel.)
Operation
Name Clamp
manual
Quantity 1 4 pcs.
Shape
Gas side acces-
Name Insulation tube
sory piping
Quantity 1 pc. 1 pc.
Shape
(Large)
(Refer to figure 1)
1. Accessories
2. Screw for front panel
3. Front panel
English
9 units
Heating
60(15.5)
Rated
heating
43(6)
41(5)
capacity
–4(–20)
50 59 68 80.6
(10) (15) (20) (27)
Indoor temperature
°FDB (°CDB)
Conduit mounting plate
2 pcs. 2 pcs.
Installation
manual
1 pc. 1
(Small)

2-4 Option accessory

• Refrigerant branching kit
REFNET joint KHRP26A22T9
REFNET header KHRP26M22H9
* See "7. PRECAUTIONS ON REFRIGERANT PIPING" for details
on how to connect refrigerant branch kits and how many are
needed.
3.

BEFORE INSTALLATION

<Transporting the Unit>
As shown in figure 2, bring the unit slowly. (Take care not to let hands or
things come in contact with rear fins.)
(Refer to figure 2)
1. Air outlet grille
2. Intake hole
3. Corner
4. Outdoor unit
5. Handle
6. Front
7. Rear
8. Always hold the unit by the corners, as holding it by the side
intake holes on the casing may cause them to deform.
Use only accessories and parts which are of the designated specifica-
tion when installing.
4.

SELECTING INSTALLATION SITE

(1) Select an installation site where the following conditions are
satisfied and that meets with your customer's approval.
• Places which are well-ventilated.
• Places where the unit does not bother next-door neighbors.
• A locations where small animals will not make nests in the unit.
• Safe places which can withstand the unit's weight and vibration and
where the unit can be installed level.
• A locations where there is enough space to install the unit.
• Places where the indoor and outdoor unit's piping and wiring
lengths come within the allowable ranges.
• A location where there is no risk of flammable gas leaking.
(2) If the unit is installed in a location where it might be exposed to
strong wind, install as per figure 3.
• 11 mph (5 m/s) or higher winds blown against the outdoor unit's
exhaust cause a deterioration in the system performance. High
winds force re-circulation of the exhaust air into the inlet, which is
known to cause the following effects:
• Reduction in performance.
• Increased frost formation in heating mode.
• System shut down due to increased pressures.
• If very strong wind blows continuously on the air outlet side of the
outdoor unit, the fan may turn in reverse at high speed and break,
so install as per figure 3.
(Refer to figure 3)
1. Turn the air outlet side toward the building's wall, fence or
windbreak screen.
2. Air inlet grille
3. Ensure there is enough space for installing the unit.
4. Set the outlet side at a right angle to the direction of the
wind.
5. Strong wind
6. Blown air
KHRP26M33H9
3