Weil-McLain Ultra Manual page 102

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gas fired water boiler
Replacement parts
Figure 110
Controls
Item Description
1 Ultra U-control module
2 Transformer, 120v/24v
3 Display board assembly (includes plastic and display screen)
4 On/off power switch
5 Pressure/temperature gauge assembly (Includes temperature and pressure sensor)
6 Flue temperature sensor replacement kit
7 System temperature sensors (2 required)
8 Outdoor temperature sensor
9 Display to U-control wire harness (not shown)
10 Upper line voltage wire harness (male) (not shown)
11 Lower line voltage wire harness (female) (not shown)
12 Upper low voltage wire harness (male) (not shown)
13 Lower low voltage wire harness (female) (not shown)
14 120 volt, 3-wire receptacle (not shown)
15 Ultra U-control module fuses (not shown)
16 Jumper for low voltage terminal blocks, (5 jumpers) (not shown)
17 Ultra U-Control terminal block kit, (includes 1 high voltage terminal block, 6 low voltage terminal
blocks, and U-control screwdriver) (not shown)
18 24-V LWCO kit with quick connect harness (not shown)
102
— Boiler Manual
(continued)
Go to www weil-mclain com to locate Weil-McLain distributors
F1 - 3-amp, fast-blow ATO (5 fuses)
F2 - 12-amp, slow-blow AG (5 fuses)
Part Number
383-500-627
383-500-628
383-500-629
383-500-205
383-500-630
383-500-600
383-500-601
510-312-218
383-500-633
383-500-634
383-500-635
383-500-636
383-500-637
383-500-638
383-500-603
383-500-604
383-500-641
383-500-642
511-100-005
Part number 550-100-066/0608