Rigging The Enclosure; Replacing Gateway 20-Comm-H Option Card - Carrier 19XRV Start-Up And Service Instructions

ENCLOSURE TOP
FRONT CORNER OF
IS REMOVABLE
DRIVE COMPARTMENT
IS REMOVABLE
SIDE VIEW
Fig. 23 — 23XRV Enclosure Access for
Removing Drive
When replacing the drive, reverse the procedures and tighten to
the torques for Frames 6 and 7 power terminal block listed in
Table 7.
Table 7 — Frames 6 and 7 Power Terminal Block
MAXIMUM LUG
FRAME
WIDTH
6
34.6 mm (1.36 in.)
7
43.5 mm (1.71 in.)

RIGGING THE ENCLOSURE

Where
overhead room and/or clearance in front of the drive en-
closure is insufficient to allow the drive to be safely removed from
the enclosure, the entire enclosure may have to be removed from
the chiller.
The dimensions and weights specified must be taken into consid-
eration when removing the enclosure. For 19XRV chillers, the to-
tal weight for Frames 6 and 7, including drive weight and enclo-
sure, is 720 lb. The 23XRV chiller enclosure, including all compo-
nents, weighs 975 lb. All lifting equipment and lifting components
(hooks, bolts, lifts, slings, chains, etc.) must be properly sized and
rated to safely lift and hold the weight of the enclosure and drive
while removing. See Fig. 24 and Fig. 25.
<45°
A19-1837
> 1 / 2 A
A
Fig. 24 — Rigging the Enclosure, Frame 6
DRIVE POSITIONED FOR
VERTICAL LIFT
DRIVE EXTENDS BEHIND
MAIN ENCLOSURE
SUPPORT FROM
BELOW
A19-2012
RECOMMENDED TERMINAL
TORQUE BOLT SIZE
∙
11.3 N m (100 in.-lb) M8 x 1.25
∙
11.3 N m (100 in.-lb) M8 x 1.25
<45°
> 1 / 2 A
Fig. 25 — Rigging the Enclosure, Frame 7

REPLACING GATEWAY 20-COMM-H OPTION CARD

Follow these steps for removing and replacing existing gateway:
1. Disconnect power to the drive. Before removing the enclo-
sure, open the access door on the front of the drive. See
Fig. 19.
2. Check to be sure that the voltage between DC+ and DC–
and from each DC terminal to the chassis is zero before
proceeding. See Fig. 20.
3. Remove the enclosure. See Fig. 21.
4. Remove the 2 screws securing the mounting plate and
remove the mounting plate and COMM card. See Fig. 26.
5. Mount the new COMM card and mounting plate and
attach with the 2 screws removed in Step 4. See Fig. 27.
6. Use the shorter ribbon cable to connect the plug on the
COMM card to the connector on the mounting plate. See
Fig. 26.
7. Install the enclosure. See Fig. 21.
0.45-0.67 N-m
(4.0-6.0 lb.-in.)
3 PLACES
Fig. 26 — COMM Card
17
A
A19-1838
GATEWAY
MOUNTING PLATE
RIBBON CABLE
A19-1819