Nibe AMS10 - Page 24

Defrosting diagram AMS10-12/16
Compr. speed
EEVH
EEVC
FAN
4-way valve
Bypass valve
SH control
SC control
Compr. speed ≤
55rps
500 pulses
10s
10s
30 rps
20 rps
ON
ON
OFF
ON
OFF
OFF
1s
120s
40s after defrost
condition is fulfilled
66rps
500
2rps / 5s
Allowed when condition
meets
Fully closed
3s
Suction SH+ target LP control
LP≥ 0.55 MPa
OFF
SH≤ 5°C
Compr.
stopped
SH control
ON
ON
80s
90s
Defrost end
c
ondition fulfilled
ExplanationShortening
SubcoolingSC
SuperheatingSH
Exp. valve heatingEEVH
Exp. valve coolingEEVC
Low pressureLP
NIBE AMS10Chapter 4 | Description of functions24