Carel PJ32S - PJ32 Defrost Management Parameters

SOXJLQ
Cod. +030221881 rel. 1.0 - 11/02/2000 20
 G GHIURVWPDQDJHPHQWSDUDPHWHUV
 GHIURVWSDUDPHWHUV W\SH

PLQ PD[ XRP GHI

G
type of defrost (0=heat. element, 1=hot gas, 2=heat elem. by time, 3=hot gas by time) C 0 3 flag 0
G,
interval between defrosts F 0 199 hours 8
GW
end defrost temperature Set Point F -50 +127 °C/°F 4
G3
maximum defrost duration F 1 199 min 30
G
defrost at instrument on (0=no, 1=yes) C 0 1 flag 0
G
defrost delay at instrument on or from multifunction input C 0 199 min 0
G
display off during defrosting (0=no, 1=yes) C 0 1 flag 1
GG
dripping time F 0 15 min 2
G
alarm bypass time after defrosting and/or door open F 0 15 hours 1
G
defrost priority over compressor protection (0=no, 1=yes) C 0 1 flag 0
G
defrost probe reading F - - °C/°F -
7DE

GW\SHRIGHIURVW
Sets the type of defrost for the instruments fitted with defrost relay:
G W\SHRIGHIURVW
0 heating element
1 hot gas
2 heat. element by time
3 hot gas by time

7DE

Def.: G =0, defrost using heating element. Available on models Y, X and C.
:DUQLQJ : for the S models with two probes or with alarm relay, a time must be set (recommended G =2).
G,LQWHUYDOEHWZHHQGHIURVWV
The defrost is performed periodically at an interval equal to the value of G, (in hours or minutes, see parameter G& ). The interval
G, starts to be counted IURPWKHSUHYLRXVHQGGHIURVW . If the time is equal to 0 ( G, =0), the defrost is not performed, except when
forced from the keypad or digital input. During defrosts the temperature alarms are inhibited.
:DUQLQJV : possible errors in measuring the times must be taken into account, typically ±5 % and maximum ±10 %.
Def.: 8 hours - Available on all models.
For the S models with two probes or with alarm relay, this must be set to zero to exclude cyclical defrosts.
GWHQGGHIURVWWHPSHUDWXUH6HW3RLQW
For units fitted with end defrost probe (Y and C), this parameter allows an evaporator temperature to be set at which the defrost is
stopped (the evaporator temperature is measured by the defrost probe). If, at the start of a defrost cycle, the temperature measured
by the defrost probe is greater than the set end defrost value, the cycle is not performed. In the event of defrost probe failure, the
control performs a timed defrost with a duration equal to the value set for G3 . The same is true if the end defrost Set Point can not
be reached, the defrost is stopped after a maximum time equal to the value, in minutes, of G3 , and the error (G is displayed (if
enabled by U ) DQGVWD\VRQXQWLODFRUUHFWGHIURVWF\FOHLVSHUIRUPHGWKDWLVRQHZKLFKHQGVE\WHPSHUDWXUH
Def.: 4 ºC - Available on models Y and C.
G3PD[LPXPGHIURVWGXUDWLRQ
Determines the duration of the defrost in minutes (or seconds, see parameter G& ). For instruments without evaporator probe (S
with + =1 and X) this parameter represents the effective duration of the defrost.
Def.: 30 min. Available on all models.