Installation - Johnson Controls GH-5000 Manual

Installation

WARNING: Explosion hazard. To prevent leakage of upstream gas, shut off the gas supply at the
main manual shutoff valve before installing or servicing the GH-5000 valve.
CAUTION: Equipment damage. To prevent damage to the valve when mounting to pipework, do not
use a wrench on any surface other than the casting flats provided at the inlet and outlet ends of the valve
body.
IMPORTANT: Ensure that the drilled holes in the actuator cover are not covered. These holes are
necessary for ventilation and must not be covered by paint or other materials.
Perform the following procedure to install the GH-5000 valve.
•
Ensure that the specified maximum ambient temperature is not exceeded (see Table 1).
•
Ensure that the power supply voltage is compatible with the required control valve voltage.
•
Ensure the gas flows through the valve body in the direction indicated by the arrow on the valve body.
Leakage can occur if the valve is installed with the gas flow in the opposite direction of the arrow.
IMPORTANT: Do not install the actuator upside down. Install vertically wherever possible.
•
The GH-5000 valve contains hydraulic fluid that the pump needs to operate the valve. Therefore, the
valve may be mounted horizontally with the actuator pointed up (vertical) or in one plane in positions that
do not exceed 90° from vertical. See Figure 1 and the valve position label.
•
The valve may also be mounted vertically in any position around its axis, provided that the actuator is
mounted to the valve within the range indicated on the valve label. To provide application flexibility in
mounting, the actuator of the valve may be removed and rotated. However, the mounting of the valve
must still be within the range indicated on the valve label.
Figure 1: Mounting position
•
If installing a valve with threaded connections, use an approved pipe joint sealing compound on male
threads before assembly. An optional thread lubricant may have been factory applied to the first
two or three threads of the inlet and outlet to avoid galling. Ensure that excess compound is removed.
Threads of pipe and nipples must be smooth and free of tears and burrs. Steam clean all piping to
remove foreign substances such as cutting oil or thread chips.
•
If installing a valve with flanged connections, ensure that all mating surfaces are free from burrs and
loose particles. Ensure that gaskets and O-ring seats are correctly positioned in mating flanges. Ensure
that approved jointing compounds are not excessively applied.
•
Check for leakage before making any valve adjustments. Close the upstream shutoff cock. Connect air
tubing with a maximum of 70 mbar(1 psi) pressure to the inlet pressure connection. Paint the pipe
connection to the valve with a rich soap and water solution (or use acceptable gas leak detection
equipment). Open the upstream shutoff cock. If bubbles occur, this is an indication of a gas leak. To stop
a leak, tighten joints and pipe connections. Replace the part if the leak cannot be stopped.
•
Make wiring connections. Refer to the Wiring section for specific wiring instructions.
Johnson Controls SA/NV - Leuvensesteenweg 248D - B-1800 Vilvoorde - +32(2) 709 40 00 - www.johnsoncontrols.be
IMPORTANT: Refer to valve
label for mounting
positions.
90° Maximum
from Vertical
Limited Horizontal and Vertical
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130 4280 010 E