770-1 Series DUAL PURPOSE AIR SWITCH

Responds accurately to positive, negative or differential air pressure to operate power humidi- fiers, air cleaners, boilers and other equipment. Comes complete with nuts, ferrules and 6” piece of 1/4” OD flexible tubing. Has wide operating range of 0.7” to 12.0 WC. The switching differential progressively increases from .02” WC at minimum set-point. Will operate in ambient tempera- tures of -40° to 180°F.

CAT. NO. MFG. NO. SWITCH ACTION PILOT DUTY 120v EACH 3C725

770-1 SPDT 2.5 amps

Zone-A-Flow™ ZONE VALVES

High torque shaded-pole motor delivers many times more power than clock-type motors. Motor and gear train are completely immersed in lubri-

cating fluid inside a metal casing for silent operation. Automatic recycling with accessible notch wheel that shows valve position at all times. A single 40 va transformer will handle four 2-wire or six 3-wire valves. Built-in low voltage auxiliary contacts. Maximum water pressure 50 psi, maximum water temperature 240° F. 1361 models (2-wire) are for use with 24v 2-wire thermostat. Substitute F19-0097 motor assembly to convert to 3-wire operation. 1311 models are for 3 wire operation.

CAT. NO. MFG. NO. SIZE 3C300 3C301 3C302 3C718 3C717

1361-102 1361-103 1361-104 1311-102 1311-103

3/4” 1”

1-1/4” 3/4” 1”

VOLTAGE EACH 24 24 24 24 24

$268.00 $281.00 $308.07 $228.55 $251.45

REPLACEMENT PARTS for White-Rodgers Zone Valves

CAT. NO. MFG. NO. 3C719

3C7193

MOTOR ASSEMBLIES APPLICATION

F019-0104 F19-0097

2-wire, 1361 Series 3-wire, 1311 Series

VALVE ASSEMBLIES

for all 1311 and 1361 Series Zone Valves CAT. NO. MFG. NO.

3C720 3C721 3C722

F084-0433 F084-0434 F084-0435

SIZE 3/4” 1”

1-1/4”

EACH $62.29 $88.98

$102.62 GAS WATER HEATER CONTROL

For universal replacement of all standard style gas water heater controls. Automatically shuts off both main and pilot gas in the event of a pilot failure. 3C8035 has main gas regulator and is used with natural gas only, to 82,500 BTU capac-

ity. Pipe size: 1/2” NPT inlet, 1/2” inverted flare outlet. Mount- ing: 3/4” NPT, 1-1/4” shank length, 4-1/2” bulb insertion length. Pilot connection: 1/4” compression fitting. Range 70 to 160°F.

CAT. NO. MFG. NO. 3C8035

812 EACH 37C73U-168 $132.75 EACH

$267.60 $220.84

2 PORTS 90º R & 90ºL

$80.07

ELECTRIC WATER HEATER THERMOSTATS

Universal replacements for electric water heater thermostats and limits. Type 755-1 is a SPST open on rise temperature control with a range of 90Þ to 150°F. Type 756-1 is a SPDT control. Terminal 1 is common and on a rise in temperature opens circuits 1 and 2 and closes circuits 1 and 4. Temperature control range of 90° to 150°F. Type 756-50 is a combination of manual reset, high limit and #756-1 thermostat.

CAT. NO. MFG. NO. DESCRIPTION EACH 1G018 755-1 1G019 756-1 6C958

756-50

$28.35 $32.57 $40.65

PG9 Series PILOT GENERATOR

Will ignite the main burner and also provide mil- livolt power (750 M.V.) for operation of B60 type self-powered gas control systems or components.

Will operate as replacement for PG1 pilot generator. Generator cartridge (101934F32) is easily replaced in field when required. The 101934F32 cartridge has spade terminals, but ring type (“A” terminal) is available. Designed for vertical mount only.

CAT. NO. MFG. NO. 4C088

TUBING SIZE PG9A27JTL022 Two Ports --- 90° Right & Left

EACH $56.81

Note: In order to determine whether pilot flame is right or left, hold pilot in hand with cartridge end (mounting end) farthest away from you.

FLAME PATTERNS

2 PORTS 180º

1 PORTS 90º L

REPLACEMENT GENERATOR CARTRIDGE

For replacement purposes in PG9 pilot generator. Care should be exercised in selecting terminals: spade clip type or “A” terminal type.

CAT. NO. MFG. NO. LENGTH TERMINAL TYPE EACH 4C091 4C080 4C090

G01A-501 32” 101934F48 48” 101934G32 32”

G251 Series PILOT GENERATOR

This sturdy 250-millivolt generator specifically is designed for the thermostatic control of single function or combination gas valves, as well as for direct operation of thermomagnetic safety valves and relays equipped with A, F, or R terminals. The G251 replaces the G250 models.

CAT. NO. MFG. NO. 4C102

G251R36S 36”

LENGTH TERMINAL TYPE EACH R Bushing

$65.86

Spade Clip Terminal $59.30 Spade Clip Terminal $102.78 Eyelet (“A” Terminal) $75.11

1 PORTS 90º R

CONTROLS