Weil-McLain Ultra Commercial Installation And Start-Up Manual page 106

COMMERCIAL GAS
Replacement parts
Controls
Item Description
1 3-amp, fast-blow ATO (5 fuses)
2 12-amp, slow-blow AG (5 fuses)
3 CSD1 U-control module
4 NON-CSD1 U-control module
5 Expansion module
6 Display board assembly
7
Display bracket kit
8 Supply temperature sensor replacement kit, dual sensor (sensor only)
9 Return temperature sensor replacement kit, single sensor (sensor and bushing)
10 Outdoor temperature sensor
11 System temperature sensors
12 Flue Temperature sensor replacement kit (sensor and grommet)
13 Heat exchanger temperature sensor
14 On/off power switch
15 Transformer, 120v/24v
16 Pressure/temperature gauge assembly
17 120 volt, 3-wire receptacle, pre-wired
18 Air pressure switch kit (includes switch, tube and mounting screws)
19 Hose barb for air pressure switch sensing tube connection (not shown)
20 Air pressure switch sensing tube (included in item 18)
21 Blower power relay
22 Ultra U-control terminal block kit (not shown)
23 Display to U-control wire harness, RS485 (not shown)
24
Expansion module to display harness (not shown)
25 Upper line voltage wire harness (EP2, EP4, power input and blower relay) (not shown)
26 Low line voltage wire harness (not shown)
27 Upper low voltage wire harness (not shown)
28 Lower low voltage wire harness (P4 through P9 and other) (not shown)
29 Jumper for low voltage terminal blocks ( 5 jumpers) (not shown)
30 Flue temperature sensor gasket
106
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FIRED WATER BOILER
(continued)
— Boiler Manual
Part Number for
Ultra 550/750
383-500-603
383 500 604
383-600-062
383-500-658
383-600-060
383-500-659
383-600-042
383-600-072
383-600-071
510-312-218
383-500-601
383-500-600
383-500-602
383-500-205
383-500-628
570-218-054
591-391-959
383-600-073
562-302-525
In Item 18
570-350-230
383-500-642
383-500-633
591-391-961
383-600-057
591-391-958
383-600-058
591-391-956
383-500-641
590-318-011
Part number 550-100-086/0809