Daikin BEV2, Installer'S Reference Manual

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7 | Piping installation
Installer reference guide
25
BEV2N-A
CO₂ Conveni-Pack: BEV2 unit
4P677928-1 – 2021.10
WARNING
▪
Use K65 piping for high-pressure applications with a working pressure of 120 bar
or 90 bar, depending on its location in the system.
▪
Use K65 unions and fittings approved for a working pressure of 120 bar or 90 bar,
depending on its location in the system.
▪
ONLY brazing is allowed for connection of pipes. No other types of connections
are allowed.
▪
Expanding of pipes is NOT allowed.
1 Insert the field pipe into the piping on the BEV2 unit side.
2 Connect refrigerant piping to the unit using only brazed connections .
NOTICE
When brazing, place a wet cloth on the insulation attached on the unit ( a ) and make
sure the temperature does not exceed 200°C.
a
d c b e
a BEV2 unit
b Piping on the BEV2 unit side
c Insulation attached on the unit
d Brazed connection
e Field piping
3 Insulate the refrigerant piping on the BEV2 unit as follows:
b
3
a c d e f a b b b c e
2
1
3
1 2
a Insulation material (field supply)
b Tie wraps (accessory)
c Insulation pieces (accessory)
d Brazed connection
e Refrigerant pipe connection (attached to the unit)
f Unit
1 Turn up the seams of the insulation pieces.
2 Attach to the base of the unit.
3 Tighten the tie wrap on the insulation pieces.
a
a Seam of the insulation piece (accessory) facing up
NOTICE
Make sure to insulate all refrigerant piping. Any exposed piping might cause
condensation.