OPTIONAL EQUIPMENT FOR STEAM BOILERS
480V 3Ø 60 HZ
L1 L2 L3
CR | 10L | IT1 |
| ||
| 20L | IT2 |
| 30L | IT3 |
Feed Water |
|
Motor |
|
1 | Optional Transformer |
Mtr | |
Customer |
|
Connect |
|
W
|
|
|
|
|
| Boiler |
|
|
|
|
|
| On |
|
|
|
| Auto |
|
|
|
|
|
| Blowdown |
|
|
|
|
|
| System |
|
|
|
|
|
| Sequencer | CR | Feed Water |
Wire Color Code |
| Solenoid Valve | ||||
|
| |||||
B | = | Black |
|
|
|
|
BR | = | Brown |
| Pressure |
| Heater Contactor |
R | = | Red |
| Control |
| |
O | = | Orange |
|
|
| Heater Contactor |
Y | = | Yellow |
|
|
| |
480/120V |
|
| Heater Contactor | |||
G | = | Green |
|
| ||
BL | = | Blue |
| 5 Step |
| Heater Contactor |
W | = | White |
|
| ||
| Control |
|
| |||
|
|
|
|
|
| |
Typical wiring for boilers equipped with Auto Blowdown System and/or Solid State Sequencer
WATER FEED SYSTEMS
HIGH PRESSURE FEED
High pressure makeup water pumps are used when water pressure does not exceed boiler pressure by more than 10 psi and when con- densate water is not returned to the boiler. Note: Consult factory or sales office for motor/pump sizing for appropriate water feed system.
Installation
WARNING: Hazard of Electric Shock. Water feed system must be effectively grounded in accordance with the National Electrical Codes to eliminate shock hazard.
1.Locate feed on level floor or platform.
2.Connect water line to tagged fitting on feed.
3.Connect piping from discharge to water inlet check valve on boil- er with minimum of 90˚ bends or other restrictions.
4.All electrical wiring should be done by licensed electricians in accordance with local and national electrical codes. Refer to boil- er instruction for manual wiring diagram.
5.If pump is located less than 30 feet from boiler, a second check valve is required.
Automatic High Pressure Water Feed Pump/Motor Assembly
Pump Motor Dimensions
|
|
| Pipe |
|
| Dimensions (In.) |
| |||
Assembly |
| Pressure | Size |
|
|
|
|
|
|
|
Model | HP | Range | (NPT) | A | B |
| C | D | E | F |
3/4 | 1/2 | 3 |
| |||||||
16
