Pentair CH installation manual Regulated Manifold Pressure Test

Page 13

Installation (contd.)

13

 

 

Pipe Sized For Length Of Run In Equivalent Feet, (cont’d.)

PROPANE 2 STAGE REGULATION

In many “RESIDENTIAL” Propane gas line installations, the gas supplier and or installer will utilize a two stage regulation process where by at the supply tank they will install the first stage gas regulator, which would be at a higher pressure, usually 10 psi and can be for longer distance and in a smaller pipe size. Then within a short distance from the heater they will install a second regulator, which is the second stage, and this would be set at the reguired inlet pressure of 11 inches of W.C. for all the Pentair Pool Heaters.

Stage One "High Pressure" Gas Pipe Sizing

MAXIMUM EQUIVALENT PIPE LENGTH

Model

0 to 50 Feet

50 to 100 Feet

100 to 150 Feet

 

 

 

 

75 & 100

1/2 in.

1/2 in.

1/2 in.

 

 

 

 

150

1/2 in.

1/2 in.

1/2 in.

 

 

 

 

200

1/2 in.

1/2 in.

1/2 in.

 

 

 

 

 

 

250

1/2

in.

1/2

in.

1/2 in.

 

 

 

 

 

 

300

1/2

in.

1/2

in.

1/2 in.

 

 

 

 

 

 

350

1/2

in.

1/2

in.

1/2 in.

 

 

 

 

 

 

400

1/2

in.

1/2

in.

1/2 in.

 

 

 

 

 

 

Table 8.

Stage Two "Low Pressure" Gas Pipe Sizing

MAXIMUM EQUIVALENT PIPE LENGTH

Model

0 to 10 Feet

10 to 20 Feet

 

 

 

75 & 100

1/2 in.

1/2 in.

 

 

 

150

1/2 in.

1/2 in.

 

 

 

200

1/2 in.

3/4 in.

 

 

 

250

1/2 in.

3/4 in.

 

 

 

 

300

3/4

in.

3/4 in.

 

 

 

 

350

3/4

in.

3/4 in.

 

 

 

 

400

3/4

in.

3/4 in.

 

 

 

 

Table 9.

REGULATED MANIFOLD PRESSURE TEST

1.Attach the manometer to the heater jacket.

2.Shut off the main gas valve.

3.Remove 1/8 in. NPT plug on the outlet side of the valve and screw in the fitting from the manometer kit.

4.Connect the manometer hose to the fitting.

5.Fire the heater.

6.The manometer must read 4 in. WC for natural gas, 11 in. WC for propane gas, while the heater is operating.

7.For adjustment, remove the Regulator Adjustment Cap and using a screwdriver turn the screw clockwise to increase - counterclockwise to decrease gas pressure.

CAUTION

The use of Flexible Connectors (FLEX) is NOT recommended as they cause high gas pressure drops.

REGULATOR

ADJUSTMENT CAP

PILOT

 

HONEYWELL

 

 

 

1/2 P.S.I.

 

PRESS

 

 

 

PILOT

 

TAP

Figure 11.

ADJ.

 

 

MINIMAX CH GAS PRESSURE REQUIREMENTS*

 

Natural

Propane

 

 

 

Maximum inlet gas pressure

10 in. WC

14 in. WC

Minimum inlet gas pressure

**5 in. WC

12 in. WC

Normal manifold pressure

4 in. WC

11 in. WC

** 6 WC for 400 model

 

 

*All Readings are taken with the heater fired. Any adjustments

made with heater off will give incorrect readings.

 

Table 10.

 

 

Rev. B 1-17-03

P/N 472128

Page 12 Page 14
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Page 12 Page 14
Contents What to do if YOU Smell GAS For Your Safety Read Before OperatingFor additional free copies of this manual call 800 Table of Contents Important Notices Code RequirementsSafety Rules Warranty InformationOperation contd Lighting Instructions For Your Safety Read Before LightingTo Turn OFF GAS to Heater Operating Controls Dual Temperature Control SystemEnergy Saving Tips Maintenance InstructionsSpring and Fall Operation Winter OperationChemical Balance Maintenance contdIf pH becomes too high over alkaline, it has these effects Alkalinity High LowSpecifications Installation InstructionsPlumbing Connections Installation contdPlumbing Insulating the High Limits Water ConnectionsGAS Connections GAS Line InstallationsRegulated Manifold Pressure Test Ventilation Outdoor Installation onlyFront Stack Type Indoor Draft Hood KIT Electrical MiniMax CH Millivolt Wiring DiagramHeater Short Cycling Rapid On and Off Operation Troubleshooting GeneralMinimax CH Heater ALL Models MiniMax CH Parts List MiniMax CH Parts List, contd Rev. B MiniMax CH 150 IID Model To Turn OFF GAS to Appliance Operating InstructionsOperation Safety Lockout Thermostat Knob Stopper Indicator Light DescriptionHeat Heat Troubleshooting ControlsTroubleshooting Controls Transformer Wiring Instruction InstallationRegulated Manifold Pressure Test Diagram Electronic Ignition WiringWire Remote Remote Switch Dual Therm IID onlyMinimax CH Heater 150 IID Model MiniMax CH Parts List 150 IID Model MiniMax CH Parts List 150 IID Model, contd Rev. B MiniMax CH Heaters Limited Warranty
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CH specifications

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