Jacuzzi J-HN250C User Manual

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INST 396 Jacuzzi® J-HN Series Heater V12-16
TESTING GAS PRESSURE
1. Note – burner gas pressure must be measured when unit is operating.
2. Set thermostat to “OFF”.
3. Remove screws from front thermostat panel and open.
4. Loosen screw from ⅛” brass test point located on outlet side of gas valve (between the valve and the burner).
5. Connect manometer tube to test point.
6. Set thermostat to “ON” and wait for burner to ignite.
7. Once burner has ignited, the manometer must indicate the nominal inlet pressure listed below.
8. Remove the regulator cap on the gas valve and adjust the regulator pressure to achieve the specified burner operating pressure.
9. If the regulator cannot be adjusted to achieve the specified burner pressure, it is likely the gas line to the appliance is insufficient.
10. Remove manometer.
11. Tighten test point screw.
12. Replace regulator cap.
13. Refit covers.
WARNING: Important to check that Test point screw has been refitted and tightened.
Jacuzzi® J-HN Series Heater Model
J-HN250C
J-HN400C
NATURAL
PROPANE
NATURAL
PROPANE
GAS INLET RATES
(BTU/h)
250,000
250,000
380,000
380,000
GAS TEST POINT
PRESSURE
(Ibs)
INLET STATIC
5” MIN.
14” MAX.
11” MIN.
14” MAX.
5” MIN.
14” MAX.
11” MIN.
15MAX.
INLET
OPERATING
(HIGH FIRE)
>4.5” WC
>10” WC
>4.5” WC
>10” WC
BURNER
OPERATING
(HIGH FIRE)
2.6”
8”
2.5”
8”
CO LEVELS (ppm)
10 to 30 max
10 to 30 max
10 to 30 max
10 to 30 max

Jacuzzi J-HN250C Specifications

General

Brand	Jacuzzi
Model	J-HN250C
Category	Heater
Language	English