NAVTEK N2B9H User manual

N2B9H
N4A9H
www.navtek.uk
www.navtek.ie
Made in China

Dear User,
Thank you for choosing NAVTEK Product. For best result and right way to use it,
please read this operating manual carefully before using. We suggest that you’d
better keep this manual with the product or place where you can easily find for
later reference.

NO.
1
2
3
4
5
6
7
NO.
8
9
10
11
12
13
Name Name
Hook
High pressure gauge
Cap
Zero adjusting screw
High pressure valve
Sight glass
Low pressure valve
Connector
Low pressure gauge
Sheath
Blue hose
Yellow hose
Red hose

N2B9H N4A9H
R-32, R-134a, R-410A, R-404A R-32, R-134a, R-410A, R-404A
Φ 2-5/8 (68mm)
3x5' (1.5M)
Red
Yellow 1/4" - 1/4"
Blue
1/4" - 1/4"
1/4" - 1/4"
NAVTEK
4.1 Connect blue hose to the low side of system, connect red hose to the high side
of system. Connect black hose from vacuum valve(8) on manifold to 3/8" port on
vacuum pump. Connect yellow hose to refrigerant cylinder.
4.2 Open all valves on manifold.
4.3 Turn on the vacuum pump.
4.4 Close all valves (6,7,8+9) when correct vacuum is reached.
4.5 Please note evacuation times vary due to system size.
5.1 Keep valves closed, remove the black 3/8 hose from the vacuum pump and
manifold and open valve 9.
5.2 Open valve on the refrigerant container.
5.3 Open valve 7, the system is now being charged with refrigerant. Check the correct
quantity of refrigerant with a charging scale(such as a NAVTEK wireless scale),
and observe the pressure on the gauge. If the refrigerant flow is too slow or
insufficient the system compressor can be turned on to speed up the process.
5.4 If the correct charging quantity has been reached, close valve 9 immediately.
5.5 Close refrigerant cylinder valve
5.6 Open valve 6 and check pressure & temperature of system.
5.7 If pressure is OK, close all valves on manifold.
5.8 Remove all hose and open all valves on manifold, making sure not to vent
refrigerant to atmosphere.
1.3 For maintenance and repair of the manifold, contact authorized NAVTEK
distributors. Product warranty would be void if it is disassembled by unauthorized
individuals.
Operation Instruction for 2 way manifold
Operation Instruction for 4 way manifold
Φ 3-1/8 (80mm)
NAVTEK
NRS3i01
4x5' (1.5M)