White Rodgers 1050 User Manual

WHITE-RODGERS

Operator: Save these instructions for future use!

FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL INJURY AND/OR PROPERTY DAMAGE.

The Type 1050 Indoor-Outdoor Control is designed for use on conventional hot water heating systems where it is desired to vary boiler temperature according to outdoor weather conditions. These controls are not recommended for radiant panel installations because of the lower boiler temperatures required. Type 1050 has open-on-rise (SPST) switch action.

This indoor-outdoor control increases or decreases frequency of burner operation to maintain a proper balance between boiler temperature and outdoor temperature. This control should always be used with a separate high limit control.

For increased flexibility, this control has two simple adjustments that enable it to be set to meet the needs of almost any installation. The square dial is used to adjust the reset ratio from 1-1/2 to 1, up to 1 to 1-1/2. The round dial permits additional adjustment, if necessary, to raise or lower boiler water temperature at all outdoor temperatures.

TYPE 1050

INDOOR - OUTDOOR

HOT WATER TEMPERATURE CONTROL

With Adjustable Reset Ratio

INSTALLATION INSTRUCTIONS

DESCRIPTION

THIS CONTROL MUST BE INSTALLED BY A QUALIFIED INSTALLER.

Do not exceed the specification ratings. All wiring must conform to local and national electrical

codes and ordinances. This control is a precision instrument, and should be

handled carefully. Rough handling or distorting components could cause the control to malfunction.

This control has been accurately calibrated at the factory. Any attempt to calibrate this control will void the WhiteRodgers warranty.

ELECTRICAL DATA Switch Action: Open on Rise Switch Rating: S.P.S.T.

14F.L.A., 84L.R.A., 120V.A.C. 7F.L.A., 42L.R.A., 240V.A.C.

5.6A.,@ 25V, 120V.A.C.

2.8A.,@ 240V.A.C.

PRECAUTIONS

CAUTION

To prevent electrical shock and/or equipment damage, disconnect electric power to system at main fuse or circuit breaker box until installation is complete.

WARNING

Do not use on circuits exceeding specified voltages. Higher voltages will damage control and could cause shock or fire hazard.

SPECIFICATIONS

THERMAL DATA Range:Outdoor Temp.- -20° to 70°F (-24° to 21°C)

Boiler Temp.- 60° to 120°F (16° to 49°C) min. setting

-100° to 250°F (38° to 121°C) max. setting

Differential: - 10°F Fixed (5.5°C) Capillary Length: Outside - 30 Ft. (9 m)

Inside - 15 Ft. (4.5 m)

Bulb Size: Outside - 3/8" x 3-5/8"

Inside - 7/16" x 3" for 1/2" NPT well

WHITE-RODGERS DIVISION

EMERSON ELECTRIC CO. 9797 REAVIS RD., ST. LOUIS, MO. 63123 (314) 577-1300, FAX (314) 577-1517

9999 HWY. 48, MARKHAM, ONT. L3P 3J3 (905) 475-4653, FAX (905) 475-4625

Printed in U.S.A.

PART NO. 37-1640B

Replaces 37-1640, 37-9163, 37-9264

9620

INSTALLATION

MOUNTING BRACKET

OUTDOOR BULB

CEILING

ROOF

Both the outdoor bulb and inside bulb should be installed before the control case, since capillary lengths of these bulbs will normally determine the final location for the control case.

A. INSTALLING THE OUTDOOR BULB:

Locate the outdoor bulb so that it senses actual outdoor air temperature. Attach mounting bracket supplied with control to some convenient outside part of the building so that the outdoor bulb is:

1. Exposed to circulation of air and wind.

2. Shielded from rain, snow, and direct rays of sun.

3. Not close to false sources of heat such as dryer vents, exhaust fans, melting snow or ice, etc.

4. Sufficiently above ground to prevent tampering or being covered with snow, ice, or debris.

B. INSTALLING THE WATER BULB:

The water bulb should be installed in a hot section of the boiler. It should never be installed near a return inlet to the boiler.

C. INSTALLING THE CONTROL CASE:

The case of the Indoor-Outdoor Control should be installed as follows:

1. Install it on a vertical surface such as a wall or the side of a joist.

2. Do not install it on a heated surface such as on the boiler or a hot water pipe.

3. Install it high enough so that it will be convenient to make adjustments on round dial and large screw at bottom of case.

4. Install it so end of case with electrical outlet is on top.

NOTE

Use care not to bend or dent either of the sensing bulbs

The underside of the eaves or overhang of a NORTH or NORTHWEST roof is normally a good location. It should be exposed to the circulation of air and wind.

INSTALLED ON JOIST

INSTALLED HIGH ON WALL

WIRING & OPERATION

All wiring should be done in accordance with local and national electrical codes and ordinances.

This indoor-outdoor control is designed to vary boiler temperature according to outdoor weather conditions. For this reason, it is recommended that this control only be used on systems where the domestic hot water supply is heated by a separate source from the heating boiler.

The most common method for using an indoor-outdoor control is shown in the block diagram below, and in the wiring diagrams which follow. A separate high limit control should always be used with an indoor-outdoor control.

INDOOR OUTDOOR CONTROL

HOT WATER BOILER

HIGH LIMIT CONTROL

BURNER

CIRCULATOR

ROOM THERMOSTAT

RELAY

WIRING & OPERATION CONT.

All wiring should be done in accordance with local and national electrical codes and ordinances.

BURNER CONNECTIONS

Burner Operation

The indoor-outdoor control cycles the burner to vary boiler temperature to outdoor weather conditions.

TYPE 668 OIL

BURNER CONTROL

BURNER MOTOR

IGNITION

TRANS.

INDOOR OUTDOOR CONTROL

HIGH LIMIT

Using Oil burner control

HOT

LINE

INDOOR OUTDOOR CONTROL

HOT

TRANSFORMER

HIGH LIMIT

Using Gas or Solenoid Gas Valve

HIGH LIMIT

24V A.C.

DIAPHRAGM

GAS VALVE

THERM PILOT TRANS

SAFETY

PILOT

INDOOR OUTDOOR CONTROL

Using diaphragm Gas Valve

24V A.C.

TRANSFORMER

SAFETY

PILOT

LOW VOLTAGE GAS VALVE OR SOLENOID GAS VALVE

HOT LINE

CONNECTIONS TO CIRCULATOR

Circulator Operation

1. Unzoned Systems, or Circulator-Zoned Systems — The

thermostat cycles the circulator motor (through a relay) to meet the demand for heating.

2. System Zoned with Water Valves – Auxiliary contacts of water valves cycle circulator motor (through a relay) to meet the demand for heating. (The circulator runs as long as any zone is calling for heat.)

452

123

ADDITIONAL

ZONES

452

123

452

123

HOT

LINE

123

TRANSFORMER

For Unzoned Sytems, or Systems Zoned With Circulators

452

123

CIRCULATOR

MOTOR

TYPE 809 RELAY

1 2 L L

THERMOSTAT

TYPE 809

RELAY

1 2 L L

CIRCULATOR

MOTOR

FIELD INSTALLED JUMPER

HOT LINE N

For Systems Zoned With Water Valves

HOT

LINE

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