Hypertherm HT400 Air Injected Water Muffler System - Manual (Page 14)

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INSTALLATION
Air Injected Water Muffler System
Instruction Manual
INSTALLATION
To install the Air Injected Water Muffler System, you need to install and interconnect
the following units:
• Nozzle Assembly
• Pump Unit
• Air Control Box
Install Nozzle Assembly
The torch should be installed onto the cutting machine prior to installing the nozzle
assembly. If the torch has not been installed, refer to the applicable instruction
manual to do so.
Note: The nozzle assembly (# 034114 or # 034118) can be mounted onto the torch
with the water muffler retaining cap (# 020579) and consumables in place.
Prior to mounting the nozzle assembly, check the consumables (nozzle, swirl
ring, and electrode) and replace if necessary. Refer to the applicable
instruction manual for detailed information.
To install the nozzle assembly, refer to Figure 2-1 and proceed with following proce-
dure.
1. Ensure the O-rings inside the nozzle assembly have been lightly coated with
silicone lubricant. Note that the water sleeve (# 034115) is already mounted in
the nozzle assembly.
2. Slide the nozzle assembly onto the torch and position the upper edge of the
nozzle assembly flush with where the torch and torch insulating sleeve meet.
Secure nozzle assembly to torch main body with clamping screw.
3. Slide the air deflector sleeve (# 034116) up inside the water sleeve until it seats.
Install Pump
The pump should be installed by an experienced electrician in compliance with
national/international electrical codes. Depending on the input power requirements,
pump motors are rated at 230/460 VAC, 3 phase, 60 Hz; 380/415 VAC, 3 phase, 50
Hz; and 575 VAC, 3 phase, 60 Hz. The pump motors are provided with overload
protection. The 230/460 VAC pumps are shipped from the factory wired for 460 VAC.
If 230 VAC operation is required, refer to the data tag on the pump to wire the motor
for 230 VAC operation. The wires are located in the box which next to the data tag.
To install and connect the pump, refer to Figures 2-2 and 2-3 and proceed as follows:
1. Place the pump within four feet (1.2 m) of the water table feed port to be used, if
hose is to be used. Longer hose distances can result in pump priming and water