Daikin Perfera CVXM20A3V1B, Installer'S Reference Manual

Page: 15 / 60

3 | Specific installer safety instructions
Installer reference guide
15
C FVXM25~50A
Split system air conditioners
4P625991-1C – 2021.09
3 Specific installer safety instructions
Always observe the following safety instructions and regulations.
Unit installation (see "6 Unit installation" [
4
22] )
WARNING
CVXM-A and FVXM-A Floor Standing range is allowed to be combined ONLY with
systems with total refrigerant amount <1.842 kg. Therefore in case of combination
with outdoor units 3MXM40N8 or 3MXM52N8, the total liquid refrigerant piping
length of the installation MUST be ≤30 m.
WARNING
The appliance shall be stored in a room without continuously operating ignition
sources (example: open flames, an operating gas appliance or an operating electric
heater).
CAUTION
For walls containing a metal frame or a metal board, use a wall embedded pipe and
wall cover in the feed-through hole to prevent possible heat, electrical shock, or fire.
Piping installation (see "7 Piping installation" [
4
35] )
DANGER: RISK OF BURNING/SCALDING
CAUTION
▪
Use the flare nut fixed to the unit.
▪
To prevent gas leakage, apply refrigeration oil ONLY to the inside of the flare. Use
refrigeration oil for R32.
▪
Do NOT reuse joints.
CAUTION
▪
Do NOT use mineral oil on flared part.
▪
NEVER install a drier to this R32 unit to guarantee its lifetime. The drying material
may dissolve and damage the system.
CAUTION
▪
Incomplete flaring may cause refrigerant gas leakage.
▪
Do NOT re-use flares. Use new flares to prevent refrigerant gas leakage.
▪
Use flare nuts that are included with the unit. Using different flare nuts may
cause refrigerant gas leakage.
Electrical installation (see
"8 Electrical installation" [ 4 40]
)
DANGER: RISK OF ELECTROCUTION