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SURFACE (STRAP-ON) TYPE HYDRONIC CONTROL
Attach Directly to Surface of Pipe. Types for Use as High Limit,
Reverse Acting or SPDT Switching Action Control
FEATURES
• Sensing element has twice the contact area of competitive models.
• Hydraulic action element can be mounted in any position – no leveling required.
• Dustproof steel case.
• Special screw terminals with “ears” securely hold solid and stranded wires.
• Includes pipe strap and mounting screws.
Full
Motor Rating
Valves and
Model
Switch
Electrical
(Full Load)
Relays
Number
Range
Differential
Action
Rating
120 VAC 240 VAC 24 VAC 0.3-12v DC
1127-2
➀
100 to 240°F
Fixed 10°F
SPDT
HH
7.4A 3.7A 2.9A
—
(38 to 116°C)
(5.5°C)
See page 222
➀
Has U.L. approved adjustable dial stop, factory set at 150°F maximum.
1127-2
SPDT Contact Structure
HH Rated Controls
Switch Action
R-B Open on Rise
R-W Close on Rise
SPECIFICATIONS
Dimensions . . . . . . . . . . . .
6
7
/
8
”
H (includes plate) x 2
5
/
16
”
W x 3
3
/
16
”
D
Finish . . . . . . . . . . . . . . Grey
Agency . . . . . . . . . . . . . . . . . . . . . . . . . . . U.L. listed and C.S.A. approved
HYDRONIC
CONTROLS
SURFACE (STRAP-ON)
TYPE
RELAY / TRANSFORMER COMBINATIONS
DPST Relay Models Enclosed with a Transformer Capable of
Powering External Loads Up to 35VA. Ideal for Use on Boilers without
Domestic Coil. Equally Adaptable for Zoned and Unzoned Systems
FEATURES
• Low voltage screw terminals — 3 color coded, end stripped line voltage leads.
• Internal transformer can power up to 35VA external loads.
• Mounts to 4
”
x 4
”
junction box.
• Dustproof steel case.
SPECIFICATIONS
Dimensions . . . . . . . . . . . . 4
1
/
4
”
H x 2
3
/
4
”
W x 2
3
/
4
”
D
Finish . . . . . . . . . . . . . . Grey
Mounting . . . . . . . . . . . . . To 4
”
x 4
”
junction box
Lead length . . . . . . . . . . . . 8 inches
Transformer . . . . . . . . . . . . 35 VA maximum connected external load
Agency . . . . . . . . . . . . . . . . . . . . . . . . . . . U.L. recognized and C.S.A. approved
Contact Ratings
Motor Rating
Valves & Relays
120 VAC
Terminals
Model
Thermostat
Full
Locked
V1 & V2
Number
Input Voltage
Switch Action
Current
Load
Rotor
30 VAC 0.3-12v DC
8A05A-4
120 VAC, 60 Hz
DPST
0.28A
10.0A / 16.0A
60.0A / 96.0A
–
–
8A05A-101
120 VAC, 60 Hz
SPDT
0.13A
8.0A / 14.0A
48.0 / 84.0A
–
–
8A05A-101
Indicates Canadian Model Number: call 1-800-305-6953 to order
www.white-rodgers.com109
HYDRONIC /
APPLIANCE