ACtion Magazine - Napa Special Edition - June 2017 - 10

Installation issues

NVB Equipment

No matter how hard you work to design an A/C system,
the final installation has a huge impact on performance,
says Darmiento. "You can put the same unit on three identical cabs but get three very different outcomes because
there was no consistency in how it was installed."
One factor is you're adding air conditioning to a cab
that's already built, says Mike Oddo of NVB Equipment
in Fresno, Calif. "When you mount a unit, you can only
work with the space you have," he explains. "Some cabs
are extremely tight and are not designed for climate controls at all." (Figures 3)

Figure 3: Space in this Jackrabbit orchard tractor is tight.
The A/C unit mounts on the floor on the side of the
cockpit.

facing the lift tines
or swivel his seat
180 degrees and
drive the machine
down a road at
highway speed.
"The first thing
we noticed was
the way the old
unit was set up. It
drew air from the
rear, which doesn't Figure 5: Crisafulli uses rooftop A/C
give it a chance to units on its dredges. Its supplier, Interpull adequate air state Power Systems, provides the A/C
through the sys- unit, quick-connect hose kits, and comtem upon instal- pressor engine mounts, which makes
lation. This is be- installation easier.
cause normally it's
mounted near the
back wall of the cab," Oddo says. NVB replaced the unit with
an evaporator that draws air from the bottom, allowing sufficient
airflow into the unit even when it's mounted near a wall or some
other obstruction. (Figure 4)
A WD can also help the specialty OE with factory installation by selecting the right size and location for the condenser,
evaporator, compressor, and refrigerant lines.

Crisafulli

The road not traveled: A/C for off-highway vehicles

AeroQuip

NVB Equipment

Oddo says it's not uncommon to see cabs with the right unit
placed in the wrong location. This error makes airflow and working on the unit a challenge. He recalls being asked to swap out a
ceiling-mounted evaporator on a hay squeeze, a diesel-powered
lift truck designed for moving hay bales. The operator can work

Figure 4: A technician from NVB Equipment in Fresno
hooks up a ceiling-mounted evaporator in a hay squeeze.
The placement of the unit is important for better airflow
and serviceability.

10

ACTION/NAPA * Spring 2017

Figure 6: For OEs who might hook up only a handful of
systems a year, quick-connect hoses and fittings like this
Aeroquip EZ Clip system can simplify installation and
reduce leaks.



Table of Contents for the Digital Edition of ACtion Magazine - Napa Special Edition - June 2017

Tips from Gates
Water pump weeps
Regulating recharge
Change is coming for some HD vehicle refrigerants
The road not traveled: A/C for off-highway vehicles
Retrofi tting R-1234yf mobile air conditioning systems is prohibited
Hybrid and battery electric vehicle A/C
Is your recycled coolant at full strength
ACtion Magazine - Napa Special Edition - June 2017 - Cover1
ACtion Magazine - Napa Special Edition - June 2017 - Cover2
ACtion Magazine - Napa Special Edition - June 2017 - 3
ACtion Magazine - Napa Special Edition - June 2017 - Water pump weeps
ACtion Magazine - Napa Special Edition - June 2017 - Regulating recharge
ACtion Magazine - Napa Special Edition - June 2017 - Change is coming for some HD vehicle refrigerants
ACtion Magazine - Napa Special Edition - June 2017 - The road not traveled: A/C for off-highway vehicles
ACtion Magazine - Napa Special Edition - June 2017 - 8
ACtion Magazine - Napa Special Edition - June 2017 - 9
ACtion Magazine - Napa Special Edition - June 2017 - 10
ACtion Magazine - Napa Special Edition - June 2017 - 11
ACtion Magazine - Napa Special Edition - June 2017 - Retrofi tting R-1234yf mobile air conditioning systems is prohibited
ACtion Magazine - Napa Special Edition - June 2017 - 13
ACtion Magazine - Napa Special Edition - June 2017 - 14
ACtion Magazine - Napa Special Edition - June 2017 - 15
ACtion Magazine - Napa Special Edition - June 2017 - 16
ACtion Magazine - Napa Special Edition - June 2017 - 17
ACtion Magazine - Napa Special Edition - June 2017 - Hybrid and battery electric vehicle A/C
ACtion Magazine - Napa Special Edition - June 2017 - 19
ACtion Magazine - Napa Special Edition - June 2017 - 20
ACtion Magazine - Napa Special Edition - June 2017 - 21
ACtion Magazine - Napa Special Edition - June 2017 - 22
ACtion Magazine - Napa Special Edition - June 2017 - 23
ACtion Magazine - Napa Special Edition - June 2017 - 24
ACtion Magazine - Napa Special Edition - June 2017 - Is your recycled coolant at full strength
ACtion Magazine - Napa Special Edition - June 2017 - 26
ACtion Magazine - Napa Special Edition - June 2017 - Cover3
ACtion Magazine - Napa Special Edition - June 2017 - Cover4
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