Gemini Instruction Manual I-GARD
5
Figure 4 Outside Dimensions
The wall mounting holes are located in the rear corners of the cabinet (Figure 4)
.
The distance between mounting
holes is 20 3/4” or 527 mm. in the vertical direction and 16 5/8” or 422.3 mm. in the horizontal direction.
Mounting holes are 3/8” or 9.5 mm. wide allowing for the use of 5/16” or 9 mm. diameter fasteners.
Mount the
Gemini
securely to the wall in accordance with local codes. Once the
Gemini
is securely mounted,
proceed to the connections. Electrical access to the interior is provided by means of eight knock out openings
(See Figure 3) suitable for 1/2” conduit. Two are located near the bottom of each side and two are located in the
bottom near each sidewall.
Gemini
requires a 120 VAC supply. Proper connection for the 120 VAC supply is a
s
follows. Connect line to terminal 1, neutral to terminal 2 and ground to terminal 3. Recommended supply cable
size is 14 or 12 AWG. Connect the system neutral (neutral bushing of the transformer) to the point identified
as N (#10 on terminal block) and the system ground to the point identified as G (#11 on terminal block
)
.
Both the Canadian Electrical Code and the National Electrical Code require a minimum size of 8 AWG if conduit
is used and size 6 AWG if exposed wiring is used.
IMPORTANT NOTE: System Neutral (N) must be connected to the X0 point of the main power transformer on
wye systems or the X0 point of the zigzag transformer for delta systems. There should be no other connections
to this point. All conductors must be insulated to the full system voltage.
Following installation, always perform a final inspection. All foreign objects must be removed. All conductors
must be secured in the proper positions before closing the door and energizing the system. DO NOT ENERGIZE
the
Gemini
unless the door is closed and secured by the two bolts provided.
13
11 12
FAN
1
GNDF TRIP
FAN
G/F TRIP SET
NGR SET
GND
FAULT
NGR
FAULT
POWER
ON
ZONE GR.
ON
NGR MONITOR
OFF
NGR FAULT
GND FAULT
SENSING
RES.
CT
G/F
METER
NGR-GF MONITOR
L1
L2
TRIP RELAY
ZONE I/L
TEST
RESET
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
AUX. TRIP RELAYS
S
G
+
-
TEST
RESET
MODE
DELAY
LEVEL
CURRENT
NGRF
20 3/4"
FUSE HOLDER
16 5/8"
TERMINAL BLOCKS
Ø3/8"
