YZ Systems Milton Roy • 201 Ivyland Road • Ivyland, PA • USA • 18974 • P: 281.362.6500 • www.yzsystems.com
NJEX ZEO Version 04/13/2021
Page 12
NJEX ZEO systems can be installed outdoors or indoors. The ambient temperature year-round
must be within the system limits. If a system is installed outdoors in a location with higher
ambient temperature and direct sunlight during warmer months, a shaded structure over the
cabinet is recommended. If the system is installed outdoors in a colder climate close to the
lower limits, a climate-controlled building is recommended. NJEX ZEO systems must be
installed per this manual and all local electrical regulations for which it is located.
Standard System Components
Standard primary components of the NJEX ZEO include the following:
1.
System Enclosure upper cabinet
. The System
Enclosure houses the mROY injection pump with
ACC, the verometer integrated with the bulk
odorant filter and suction and discharge manifold,
and the N-400 intrinsically safe system controller.
The upper cabinet has an integrated solar shield
to reduce internal temperatures in the cabinet from
solar exposure.
2.
System Enclosure lower cabinet
. The System
Enclosure lower cabinet houses the magnetic
drive transfer pump and Explosion Proof
Enclosure.
3.
N-400 Intrinsically Safe Controller
. Intrinsically
safe system controller.
4.
Explosion Proof or Flameproof Electrical
Housing
. Houses the intrinsically safe transition
board, bridging the non-intrinsically safe and
intrinsically safe electrical connections. Customer
supplied AC power routes through the explosion
proof box.
5.
mROY injection pump with ACC
. The injection
pump is housed in the System Enclosure upper
cabinet. The injection pump stroke rate will vary
for each system size. The injection pump runs at
a fixed stroke rate and the amount of odorant
injected is controlled by the actuator which adjusts
stroke length of the diaphragm by controlling the
amount of hydraulic fluid pushed against the
diaphragm.
6.
Verometer assembly
. The verometer assembly verifies the volume of odorant injected while
compensating for odorant temperature. The verometer, bulk odorant filter, and odorant manifold
are integrated into a single assembly.
Section 2: System Installation
Figure 1 NJEX ZEO Cabinet subsystems,
open doors
1
2
3
5
6
7
8
4
