Install Instructions

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Installation Instructions H91 Model Rev. B

Issue Date July 27, 2018

H91 Model Rev. B Series Shutoff Gas Valve

Part No. BASO-INS-H91MODELREVB, Rev.- www.baso.com

H91 Model Rev. B Series Shutoff Gas Valve

Applications

The H91 Series shutoff gas valve is an electrically

operated gas valve that will open on a demand signal

from a thermostat or other controlling device and

automatically close when the signal is removed.

Typical applications include heaters, wall furnaces,

commercial cooking equipment, roof top makeup units

and similar applications. The H91 Series can be used

with natural gas and LP gas at pressures up to 0.5 psi.

Its compact size permits installation in space restrictive

applications.

Installation

IMPORTANT: Only qualified personnel should

install or service BASO

Gas Products. These

instructions are a guide for such personnel. Carefully

follow all instructions in this document and all

instructions for the appliance.

IMPORTANT: Make all gas installations in

accordance with applicable local, national, and

regional regulations.

CAUTION: Risk of Electric Shock.

Disconnect power supply before making electrical

connections to avoid electric shock.

WARNING: Risk of Explosion or Fire.

Shut off the gas supply at the main manual shutoff

valve before installing or servicing the H91 Series.

Failure to shut off the gas supply can result in the

release of gas during installation or servicing, which

can lead to an explosion or fire, and may result in

severe personal injury or death.

WARNING: Risk of Explosion, Fire, or

Electric Shock. Label all wires before they are

disconnected when replacing or servicing the

H91 Series. Wiring errors can cause improper or

dangerous operation and may result in an explosion,

fire, or electric shock leading to severe personal

injury or death.

IMPORTANT: Verify that the valve is installed

only in applications where the specified maximum

ambient (surface) temperature and maximum

operating pressure does not exceed the limits in the

Technical Specifications section.

To install the H91 Series valve:

1. Shut off power to the appliance.

2. Shut off the gas at the main manual shutoff valve.

3. Label each wire with the correct terminal

designation prior to disconnection.

4. Compare the voltage on the valve with the power

source voltage to ensure the correct unit is being

installed. For valves with 25-volt coils, use a

National Electrical Code (NEC), Class 2

transformer.

Note: The transformer must be mounted to a

grounded metal enclosure.

5. Ensure that the gas flows through the valve body

in the direction indicated by the “IN” and “OUT” or

by the arrow on the valve body. If the valve is

installed with the gas flow in the opposite

direction, leakage can occur.

IMPORTANT: Do not use a wrench on any

surface other than the casting flats provided at the

inlet and outlet ends of the valve body.

The H91 Series may be damaged in the mounting

process if a wrench is used on any other surface.

Using a wrench incorrectly may void the warranty.

Summary of content (7 pages)

PAGE 1
Installation Instructions Issue Date H91 Model Rev. B July 27, 2018 H91 Model Rev. B Series Shutoff Gas Valve Applications The H91 Series shutoff gas valve is an electrically operated gas valve that will open on a demand signal from a thermostat or other controlling device and automatically close when the signal is removed. Typical applications include heaters, wall furnaces, commercial cooking equipment, roof top makeup units and similar applications.
PAGE 2
6. The H91 Series valve may be mounted on a horizontal manifold with the solenoid coils pointed up (vertical) or in any position not exceeding 90 from the vertical. The valve may also be mounted on a vertical manifold in any position around its axis (see Figure 1). Do not install the solenoid coil upside down. Install vertically wherever possible.
PAGE 3
! APPLY WRENCH TO THE FLATS FROM THE BOTTOM OF THE GAS CONTROL VALVE WARNING: Risk of Explosion or Fire. Verify that there are no gas leaks by testing with appropriate equipment. Never use a match or lighter to test for the presence of gas. Failure to test properly can lead to an explosion or fire and may result in severe personal injury or death. 11. Check for leakage: a.
PAGE 4
H91A, B, C, D, E, J, K, N, S, T, V, W, X, AA, AB, AC, AD H91L, R, AR H91M, AM Figure 4: H91 Series Gas Valves H91 Model Rev. B Series Shutoff Gas Valve © 2018 BASO Gas Products Part No. BASO-INS-H91MODELREVB, Rev.- 4 www.baso.
PAGE 5
Wiring Setup and Adjustments Checkout ! WARNING: Risk of Shock. Disconnect the power supply before making electrical connections to avoid electrical shock or equipment damage. Ensure that the operating voltage is identical to the information on the product identification label. The H91 Series valve is supplied with 3-tab and 2-tab electrical connections. The tabs of the solenoid coil are male tag terminals, and electrical connections should be made using 1/4 in. (6.35 x 0.
PAGE 6
Repairs and Replacement Maintenance Schedule Table 1: Replacement Solenoid Coil (H91A, B, C, D, E, J, K, L, N, R, S, T, V, W, X, AA, AB, AC, AD, AR) Preventive maintenance programs are an important part of maintaining optimum and safe function of your BASO products. Commercial cooking and other heating equipment can be a heavy cycling demand on gas safety controls. Part Number Description RSDA95A-12 12 VDC; 2-tab 10.5 VA Coil RSDA95A-25 25 VAC; 50/60 Hz; 3-tab 10.
PAGE 7
Technical Specifications Product H91 Model Rev. B Series BASOTROL Shutoff Gas Valve Rated Inlet Pressure 0.5 psi (35 mbar [3.5 kPa]) Valve Body Aluminium Permissible Ambient (Surface) Temperature -20 to 175ºF (-29 to 79ºC) Conduit Connection Replacement SVC200 replaces wire leads SCV210 replaces conduit 1/2 NPT connector Electrical Rating 12 VDC, 10.5 VA, 0.875 A 25 VAC, 50/60 Hz, 10.5 VA, 0.42 A 120 VAC, 50/60 Hz, 10.5 VA, 0.088 A 240 VAC, 50/60 Hz, 10.5 V A, 0.044 A 25 VAC, 50/60 Hz, 15 VA, 0.