Roberts Gorden Corayvac CRV-B Series, Инструкция по установке, эксплуатации и обслуживанию

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CRV-S
ERIES
I
NSTALLATION
, O
PERATION AND
S
ERVICE
M
ANUAL
80 of 85
19.1 Replacement Parts Instructions
19.1.1 Variable Fre q uency Drive (VFD)
To replace the Variable Freq u ency Dri v e, t u rn off all
po w er to the dri v e assembly at the breaker or discon-
nect s w itch.
Mark all w ires connected to the VFD, noting the ter-
minals that they are sec u red to. Remo v e all w ires
from the VFD terminals.
Remo v e the VFD from its mo u nting plate by remo v -
ing the sec u ring scre w s.
Verify that the inp u t v oltage noted on the rating plate
of the VFD matches the inp u t v oltage of the old VFD.
Sec u re the ne w VFD to the mo u nting plate w ith the
scre w s. Ret u rn all w ires to the correct VFD terminals.
If possible, it may be easier to partially re- w ire the
ne w VFD before mo u nting it to the mo u nting plate.
T u rn on po w er to VFD.
Using proced u re described on Page 66, Section
14.1.1 through Page 66, Section 14.1.5 , alter parame-
ter according to VFD model and make as sho w n on
on Page 67 or 69 .
19.1.2 Variable Fre q uency Drive 25 A or 10 A Fuse-
VFD For Modulatin g Thermostat Only
To replace a f u se, t u rn off inp u t po w er to the v ariable
freq u ency dri v e assembly at the breaker or
disconnect s w itch.
Inside the VFD assembly, open the f u se holder by
p u lling do w n the le v er to expose the f u se. Remo v e
the old f u se and insert a ne w f u se. Verify the correct
f u se rating, 25 A for 1 HP 120 V VFD or 2 HP 230 V
VFD, 10 A for the.75 HP 230 V VFD, 1 HP 460 V VFD
and 2 HP 460 V VFD. Close the f
u se holder. Ret u rn
po w er to the VFD assembly and v erify that the VFD
LCD screen is on. (dashes displayed). Close the
VFD assembly door.
DANGER
Electrical Shock Hazard
Disconnect electric before service.
Controller must be properly grounded to an
electrical source.
Failure to follow these instructions can
result in death or electrical shock.