Schneider Robertshaw I-1284 Regulators

Robertshaw Industrial Controls Heating Regulators
Series I-1284 Temperature Regulators - Flange Connections

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The Robertshaw I-1284-P, Q, S & T Series Temperature Regulators are compact, self-contained and self-powered, three-way control valves especially adaptable to control of water and lubricating oil temperatures on internal combustion engines. The POWER PILL® element, located inside the poppet assembly, responds to the temperature of the medium surrounding it and provides the force necessary to position the poppet as the temperature of the liquid passing through the valve changes. Temperature regulation is achieved by the proportional action of the three-way valve which varies the amount of medium through or bypassing the cooler to maintain the desired temperature. Operation of the POWER PILL elements is unaffected by pressure changes in the system.

The POWER PILLS are factory-set for the specified control temperature and are not manually adjustable. By exchange of POWER PILL elements, the operating temperature may be changed in a very simple manner. Since all internal parts lift out with the valve bonnet, it is not necessary to remove the valve from the piping. The I-1284 series is equipped with a quick-acting manual operator which permits overriding the thermal element if and when abnormal load conditions are encountered in the system. 

Operation: With low temperature liquid surrounding the POWER PILL, the poppet is in the upward position which connects ports "E" and "B." As the temperature increases, the POWER PILL stem extends forcing the poppet downward. When the temperature reaches the control point of the regulator, the valve will be at mid-stroke. If the temperature continues to increase, the poppet will continue to move downward until the by-pass port (B) is completely closed off. 

On the Robertshaw I-1284 a manual crank is provided to override POWER PILL control. Turning the crank counterclockwise moves the poppet upward to close the "C" port. The "B" port may be closed by turning the crank clockwise. In event of power pill failure, the crank should be turned clockwise until the desired cooling is achieved. 

The Robertshaw I-1284 may be installed indoors or out, provided the liquid to be controlled does not freeze. Temperature regulators should be installed as near as possible to the unit being controlled, and a pipeline strainer should be installed upstream.

I-1284-P  3 inch Robertshaw STEEL Regulator
Cooper Energy part numbers below with Temperatures
2-05V-451-001  75ºF   >>>>  I-1284-P16
Power Pill Repair Element - 2-05V451-101 >>> 96995-A16
2-05V-451-002  80ºF   >>>>  I-1284-P22
Power Pill Repair Element - 2-05V451-102 >>> 96995-A22
2-05V-451-003  90ºF   >>>>  I-1284-P20
Power Pill Repair Element - 2-05V451-103 >>> 96995-A20
2-05V-451-004  100ºF   >>>>  I-1284-P19
Power Pill Repair Element - 2-05V451-104 >>> 96995-A19
2-05V-451-005  110ºF   >>>>  I-1284-P25
Power Pill Repair Element - 2-05V451-105 >>> 96995-A25
2-05V-451-006  120ºF    >>>>  I-1284-P18
Power Pill Repair Element - 2-05V451-106 >>> 96995-A18
2-05V-451-007  130ºF   >>>>  I-1284-P1
Power Pill Repair Element - 2-05V451-107 >>> 96995-A1
2-05V-451-008  135ºF   >>>>  I-1284-P2
Power Pill Repair Element - 2-05V451-108 >>> 96995-A2
2-05V-451-009  140ºF   >>>>  I-1284-P15
Power Pill Repair Element - 2-05V451-109 >>> 96995-A15
2-05V-451-010  150ºF   >>>>  I-1284-P4
Power Pill Repair Element - 2-05V451-110 >>> 96995-A4

I-1284-Q  4 inch Robertshaw STEEL Regulator
Cooper Energy part numbers below with Temperatures
2-05V-451-011  75ºF   >>>>  I-1284-Q16
Power Pill Repair Element - 2-05V451-111 >>> 96995-A16
2-05V-451-012  80ºF   >>>>  I-1284-Q22
Power Pill Repair Element - 2-05V451-112 >>> 96995-A22
2-05V-451-013  90ºF   >>>>  I-1284-Q20
Power Pill Repair Element - 2-05V443-161 >>> 96995-A20
2-05V-451-014  100ºF   >>>>  I-1284-Q19
Power Pill Repair Element - 2-05V443-162 >>> 96995-A19
2-05V-451-015  110ºF   >>>>  I-1284-Q25
Power Pill Repair Element - 2-05V443-160 >>> 96995-A25
2-05V-451-016  120ºF    >>>>  I-1284-Q18
Power Pill Repair Element - 2-05V443-151 >>> 96995-A18
2-05V-451-017  130ºF   >>>>  I-1284-Q1
Power Pill Repair Element - 2-05V443-152 >>> 96995-A1
2-05V-451-018  135ºF   >>>>  I-1284-Q2
Power Pill Repair Element - 2-05V451-118 >>> 96995-A2
2-05V-451-019  140ºF   >>>>  I-1284-Q15
Power Pill Repair Element - 2-05V443-153 >>> 96995-A15
2-05V-451-020  150ºF   >>>>  I-1284-Q4

Power Pill Repair Element - 2-05V443-154 >>> 96995-A4

I-1284-S 5 inch Robertshaw STEEL Regulator
Cooper Energy part numbers below with Temperatures
2-05V-451-021  75ºF   >>>>  I-1284-S16

Power Pill Repair Element - 2-05V451-111 >>> 96995-A16
2-05V-451-022  80ºF   >>>>  I-1284-S22

Power Pill Repair Element - 2-05V451-112 >>> 96995-A22
2-05V-451-023  90ºF   >>>>  I-1284-S20

Power Pill Repair Element - 2-05V443-161 >>> 96995-A20
2-05V-451-024  100ºF   >>>>  I-1284-S19

Power Pill Repair Element - 2-05V443-162 >>> 96995-A19
2-05V-451-025  110ºF   >>>>  I-1284-S25

Power Pill Repair Element - 2-05V443-160 >>> 96995-A25
2-05V-451-026  120ºF    >>>>  I-1284-S18

Power Pill Repair Element - 2-05V443-151 >>> 96995-A18
2-05V-451-027  130ºF   >>>>  I-1284-S1

Power Pill Repair Element - 2-05V443-152 >>> 96995-A1
2-05V-451-028  135ºF   >>>>  I-1284-S2

Power Pill Repair Element - 2-05V451-118 >>> 96995-A2
2-05V-451-029  140ºF   >>>>  I-1284-S15

Power Pill Repair Element - 2-05V443-153 >>> 96995-A15
2-05V-451-030  150ºF   >>>>  I-1284-S4

Power Pill Repair Element - 2-05V443-154 >>> 96995-A4

I-1284-T 6 inch Robertshaw STEEL Regulator
Cooper Energy part numbers below with Temperatures
2-05V-451-031  75ºF   >>>>  I-1284-T16

Power Pill Repair Element - 2-05V451-111 >>> 96995-A16
2-05V-451-032  80ºF   >>>>  I-1284-T22

Power Pill Repair Element - 2-05V451-112 >>> 96995-A22
2-05V-451-033  90ºF   >>>>  I-1284-T20

Power Pill Repair Element - 2-05V443-161 >>> 96995-A20
2-05V-451-034  100ºF   >>>>  I-1284-T19

Power Pill Repair Element - 2-05V443-162 >>> 96995-A19
2-05V-451-035  110ºF   >>>>  I-1284-T25

Power Pill Repair Element - 2-05V443-160 >>> 96995-A25
2-05V-451-036  120ºF    >>>>  I-1284-T18

Power Pill Repair Element - 2-05V443-151 >>> 96995-A18
2-05V-451-037  130ºF   >>>>  I-1284-T1

Power Pill Repair Element - 2-05V443-152 >>> 96995-A1
2-05V-451-038  135ºF   >>>>  I-1284-T2

Power Pill Repair Element - 2-05V451-118 >>> 96995-A2
2-05V-451-039  140ºF   >>>>  I-1284-T15

Power Pill Repair Element - 2-05V443-153 >>> 96995-A15
2-05V-451-040  150ºF   >>>>  I-1284-T4

Power Pill Repair Element - 2-05V443-154 >>> 96995-A4

POWER PILLS REQUIRED per Valve Size
2 inch = 1
2.5 inch = 2
3 inch = 2
4 inch = 2
5 inch = 3
6 inch = 4
Power Pills Supplied with standard part numbers.

Robertshaw makes the below regulators with Bronze Valves
Temperature set points are the same codes.

I-1284-B  2 inch Robertshaw Bronze Regulator
I-1284-C  2.5 inch Robertshaw Bronze Regulator
I-1284-D  3 inch Robertshaw Bronze Regulator
I-1284-E  4 inch Robertshaw Bronze Regulator
I-1284-F  5 inch Robertshaw Bronze Regulator
I-1284-G  6 inch Robertshaw Bronze Regulator

1 = 130
2 = 135
4 = 150
5 = 155
8 = 185
10 = 160
11 = 165
12 = 170
13 = 180
15 = 140
17 = 190
18 = 120
21 = 175
23 = 200

Special Set Points are:
(Extra cost for these)
16 = 75
19 = 100
20 = 90
22 = 80
24 = 60
25 = 110

Robertshaw I-1284 Cooling Regulator Valve

Robertshaw Industrial Controls is a part of Schneider Electric

Anderson-Bolds
216-360-9800
www.anderson-bolds.com

Robertshaw I-1284...Robertshaw I-1284...Robertshaw I-1284...Robertshaw I-1284