Trane CVHH Installation, Operation And Maintenance Manual page 84

Start-up and Shut-dow n
Figure 48. Adaptive chiller ON flow chart
First chiller power- up.
Purge operat es
cont inuously for 168
hours t o collect dat a.
Chiller On or Off.
Turn purge unit Off for
3 hours, t hen rest art .
Turn purge unit Off for
4 hours, t hen rest art .
The purge then shuts dow n for a corresponding period of
tim e, as show n in the follow ing table:
Pu m pou t Tim e w it h ch ille r On
( ove r t h e la st 2 4 h ou r s or da ily a ve r a ge
ove r t h e la st 7 da ys, w h ich e ve r is gr e a t e r )
Pum pout Tim e ≤ 1 m inut e
1 m inut e < Pum pout Tim e ≤ 3 m inut es
3 m inut es < Pum pout Tim e ≤ 5 m inut es
5 m inut e < Pum pout Tim e ≤ 8 m inut es
Pum pout Tim e > 8 m inut es
84
Chiller and purge
Purge runs.
st art .
Turn purge unit Off for
1 hour, t hen rest art .
Turn purge unit Off for
2 hours, t hen rest art .
I s Pum pout
Yes
Tim e great er
t han
1 m inut e?
Pur ge Off cy cle
du r a t ion
4 hours
3 hours
2 hours
1 hour
No Off cycle
No
Has purge
run 60
m inut es
wit hout any
pum p- out ?
Yes
I s Pum pout
Yes
Tim e great er
t han
3 m inut es?
No
No
During the purge refrigeration circuit Off cycle, the tim e
rem aining is displayed as Tim e Until Next Purge Run in the
Log Sheet that you can view from the Tracer AdaptiView
display (refer to " Log Sheet, " p.
If the com pressor is turned Off during the purge
refrigeration circuit Off cycle, the purge transfers to
Adaptive M ode Procedure—Chiller Com pressor Off.
Figure 49, p. 86 illustrates this process.
Yes
The purge cont rol reviews
t he hist orical dat a and
det erm ine t he Pum pout
Tim e wit h t he chiller On
( Pum pout Tim e from last
24 hours daily average over
last 7 days, whichever is
great er.
I s Pum pout
Yes
Tim e great er
t han 8
m inut es?
I s Pum pout
Tim e great er No
t han 5
m inut es?
No
21).
CVHH-SVX001A-EN