Fire Pumps
Corpus sync: neutrality remakes, note hygiene, datasheet relocation, transformer-split cross-refs
Showing changes from Rev 6
to Rev 7
in Fire Pumps.
---
title: Fire Pumps
…313 unchanged lines
min: 25
max: 5000
− setpoints: [250, 500, 750, 1000, 1250, 1500, 2000, 2500, 3000, 3500, 4000, 5000]
+ setpoints: [25, 250, 500, 750, 1000, 1250, 1500, 2000, 2500, 3000, 3500, 4000, 5000]
default: 1000
```
…20 unchanged lines
min: 40
max: 400
− setpoints: [50, 75, 100, 125, 150, 175, 200, 250, 300, 350, 400]
+ setpoints: [40, 50, 75, 100, 125, 150, 175, 200, 250, 300, 350, 400]
default: 125
```
…24 unchanged lines
min: 100
max: 140
− setpoints: [115, 120, 125, 130, 135, 140]
+ setpoints: [100, 115, 120, 125, 130, 135, 140]
default: 140
```
…45 unchanged lines
min: 0
max: 50
− setpoints: [0, 5, 10, 15, 20]
+ setpoints: [0, 5, 10, 15, 20, 50]
default: 0
```
…256 unchanged lines
# Fire Pump Controller {toc}
−## General {toc}
+## The fire pump controller is the dedicated control panel that starts the pump on demand, monitors the driver, alarms abnormal conditions, and (for electric pumps where applicable) transfers the pump load between normal and alternate power. {note}
−### The fire pump controller is the dedicated control panel that starts the pump on demand, monitors the driver, alarms abnormal conditions, and (for electric pumps where applicable) transfers the pump load between normal and alternate power. {note}
+## The controller shall be listed for fire pump service: UL 218 for electric controllers and UL 1247 (in combination with the diesel engine) for diesel controllers, with FM 1333 or FM 1335 approvals where required.
−### The controller shall be listed for fire pump service: UL 218 for electric controllers and UL 1247 (in combination with the diesel engine) for diesel controllers, with FM 1333 or FM 1335 approvals where required.
+## The controller shall be furnished by the pump assembly supplier as part of the listed assembly and shall not be field-substituted or modified.
−### The controller shall be furnished by the pump assembly supplier as part of the listed assembly and shall not be field-substituted or modified.
+## Internal components, programming, and signal wiring shall not be altered in the field except by authorized service personnel from the controller manufacturer.
−### Internal components, programming, and signal wiring shall not be altered in the field except by authorized service personnel from the controller manufacturer.
−
## Electric Controller — Starting Method {toc}
…122 unchanged lines
# Jockey (Pressure Maintenance) Pump {toc}
−## Purpose {toc}
+## The jockey pump is a small, separate pump dedicated to maintaining system pressure against small leakage so that the main fire pump does not cycle in response to a minor pressure drop. {note}
−### The jockey pump is a small, separate pump dedicated to maintaining system pressure against small leakage so that the main fire pump does not cycle in response to a minor pressure drop. {note}
+## Every fire pump installation shall include a jockey pump and a separate jockey pump controller.
−### Every fire pump installation shall include a jockey pump and a separate jockey pump controller.
+## The jockey pump start and stop pressure shall be set so that the jockey pump replenishes minor pressure losses on its own without ever causing the main fire pump to start.
−### The jockey pump start and stop pressure shall be set so that the jockey pump replenishes minor pressure losses on its own without ever causing the main fire pump to start.
−
## Capacity and Pressure {toc}
…28 unchanged lines
min: 50
max: 400
− setpoints: [75, 100, 125, 150, 175, 200, 250, 300, 400]
+ setpoints: [50, 75, 100, 125, 150, 175, 200, 250, 300, 400]
default: 150
```
…46 unchanged lines
min: 50
max: 250
− setpoints: [75, 100, 125, 150, 175, 200]
+ setpoints: [50, 75, 100, 125, 150, 175, 200, 250]
default: 125
```
…100 unchanged lines
min: 100
max: 400
− setpoints: [125, 150, 175, 200, 225, 250, 300, 350, 400]
+ setpoints: [100, 125, 150, 175, 200, 225, 250, 300, 350, 400]
default: 175
```
…284 unchanged lines
### The Owner shall be advised that fire pumps are demanding service equipment despite their low duty cycle, and that the spare parts inventory shall be replenished as items are consumed during NFPA 25 testing and maintenance over the life of the installation.