13. Once the desired pipeline pressure has been achieved, re- assemble the front cover using a Phillips Head Screwdriver.
14. Non-flammable gas systems will come with a power supply and integral alarm. Plug the power supply cable into the bottom connector on the control box and the other end into a
120VAC electrical outlet. The status lights on the front of the box should be green (NORMAL) on both sides. When the primary side is depleted, the system will change over to the
reserve or secondary side and the primary side light will go from green (NORMAL) to red (EMPTY).
10. Cylinder Changeout
When the primary side or bank of cylinders has been depleted, the alarm system will indicate this by changing the lights on the primary side from green (NORMAL) to red (EMPTY).
The empty cylinders can then be removed and new (full) cylinders put in their place. Once the new (full) cylinders are put in place, it is recommended that the primary knob be
turned 180 degrees to point away from the new (full) cylinders. This will insure a “First In-First Out” cylinder rotation where uninterrupted gas supply can be achieved.
11. Optional Remote Alarms
Optional Remote Audio/Visual Alarms are available for all systems (see Table 1). Remote alarms for non-flammable gas systems have optional 10 ft. or 50 ft. cable lengths.
Flammable gas alarms do not come with cable/wiring.
Part Number
Gas Service
Description
4300698
Non-Flammable
Alarm Box Only
4300699
Non-Flammable
10’ Cable
4300709
Non-Flammable
50’ Cable
4300343
Acetylene
Remote Alarm Kit
4300344
Hydrogen
Remote Alarm Kit
4300345
LPG
Remote Alarm Kit
Table 1
12. Replacement Parts
The following chart (Table 2) contains a listing of common replacement parts available for the Model 220 Series Switchover Manfold Systems. Other replacement parts are available.
Contact the Harris Products Group for additional information.
Model
Control Primary Preset Outlet
Inlet Delivery Pressure Green
Red Heater Power
Number
Box P/N
Regulator
Regulator
Regulator
Gauge
Gauge
Switch
Light
Light
Assembly
Supply
220
Oxy/Inlet 4301529 3001570 3001602 3001612 9006838-2 9006842 4300684 4300688 4300687 N/A 9005489
220
Acet 4301530
3001568
3001600
3001610
9006841
9006844
N/A N/A N/A N/A N/A
220
Flammable
4301531
3001570
3001602
3001612
9006838-2
9006842
N/A N/A N/A N/A N/A
220
LPG
4301532 3001569 3001601 3001611 9006841 9006843 N/A
N/A
N/A
N/A
N/A
220
HL
4301533 3001570 3001602 3001612 9006838-2 9006842 4300684 4300688 4300687 9005421 9005489
220
HP
4301535 3001571 3001603 3001613 9006838-3 9006842 4300684 4300688 4300687 N/A 9005489
220
HPHL
4301534 3001571 3001603 3001613 9006838-4 9006842 4300684 4300688 4300687 9005421 9005489
220 HP Flammable
4301536
3001571
3001603
3001613
9006838-5
9006842
N/A
N/A
N/A
N/A
N/A
240
4301537 3001572 3001605 3001609 9006841-2 9006842 4300686 4300688 4300687 N/A 9005489
240
HP
4301538 3001573 3001604 3001608 9006840-2 9006841 4300685 4300688 4300687 N/A 9005489
Table 2
13. Troubleshooting
The following troubleshooting guide addresses some of the common failure modes and possible solutions.
PROBLEM
PROBABLE CAUSE
REMEDY OR CHECK
Leakage at manifold header connection
Check for leaks at all joints and connections; Retighten, repair
or replace headers or fittings.
Loss of Cylinder Contents
Leakage in downstream piping system
Check for leaks at all joints and connections; Retighten, repair
or replace piping or fittings.
Leakage at cylinder valve
Check for leaks at cylinder connection and valve; Replace
cylinder
Regulator leaks
Check for leaks at regulator connections; Replace connections
and/or regulator
Line regulator setting too high
Set delivery pressure to specifications
Venting at relief valve
Overpressure due to creeping or faulty regulator
Replace regulator
Regulator freeze-up (Nitrous oxide or carbon dioxide)
Reduce the flow demand or increase the number of supply cylinders.
THE HARRIS PRODUCTS GROUP
www.harrisproductsgroup.com
1.800.241.0804
