Urbana U50I-S, Руководство по установке, Страница: 14 / 51

14 |
Unpacking and Initial Setup
Pilot Adjustment
Screw
Manifold
Pressure Tap
Inlet
Pressure Tap
Stepper
Regulator
Gas Supply Varification
Ensure the appliance is seeing correct gas pressures and
inputs. Verify the following information matches that of
the rating label. Pressure taps are located on the valve
(see image). A 5/16 (8mm) I.D. hose is required to make the
connections. Check gas pressures as follows:
1.
Open inlet pressure tap (half turn) and use
a manometer to verify inlet pressure with unit
running on HI. Pressure cannot exceed 1/2 PSIG
(14" W.C.) or valve damage may occur. Adjust inlet
pressure as needed and shut pressure tap.
2.
Open manifold pressure tap (half turn) and connect
manometer. Verify gas pressures are within range while
unit is running on HI and LO. Release manometer and
shut pressure tap.
Contact your dealer if proper
pressures cannot be achieved.
NOTE:
Do not spray leak-testing liquid in pressure taps or
results will not be accurate.
r
Note
- The fireplace must be isolated from the gas
supply piping system by closing its equipment shut-
off valve during any pressure testing of that system
at test pressures in excess of 1/2 psi (3.5 kPa).
Maintenance and Service
Propane
Main Orifice #49 (U50) / #44 (U70)
Manifold Pressure 10.0” W.C. (2.49 KPa)
Min. Manifold Pressure 6.4” W.C. (1.59 KPa)
Max Supply Pressure 11.0” W.C. (2.74 KPa)
Min. Supply Pressure 10.4” W.C. (2.59 KPa)
U50 Max BTU/hr Input 38,000 BTU/hr (11.1 kW)
U50 Min BTU/hr Input 32,000 BTU/hr (9.38 kW)
U70 Max BTU/hr Input 52,500 BTU/hr (15.3 kW)
U70 Min BTU/hr Input 43,000 BTU/hr (12.6 kW)
Natural Gas
Main Orifice #32 (U50) / #28 (U70)
Manifold Pressure 3.5” W.C. (0.89 KPa)
Min. Manifold Pressure 1.6” W.C. (0.39 KPa)
Max Supply Pressure 7.0” W.C. (1.74 KPa)
Min. Supply Pressure 4.5” W.C. (1.12 KPa)
U50 Max BTU/hr Input 38,000 BTU/hr (11.1 kW)
U50 Min BTU/hr Input 25,000 BTU/hr (7.33 kW)
U70 Max BTU/hr Input 52,500 BTU/hr (15.3 kW)
U70 Min BTU/hr Input 39,000 BTU/hr (11.4 kW)
Valve Access
The valve may need to be accessed for service or
maintenance. Access valve as follows:
1.
Remove screens
(see page 22).
2.
Remove trim bezel
(see page 23).
3.
Remove the thumb screws (X2) to release
the support bracket and gain valve access.
4.
Replace support bracket securely when finished.