Chromalox RST PN400-3 user manual

Summary of the content on the page No. 1

Installation, Operation
4 RST
and
(Supersedes PN400-2) PN400-3
RENEWAL PARTS IDENTIFICATION 161-049178-001
MAY, 1986
Type RST and RSTO
Unitary Electric Immersion Heaters
3” Schedule 40
Steel Pipe
Immersed Length or “B”
Dimension From End
Of Adaptor Box To
End Of Tubes
Specifications – Table A
Tank Heater
Amperes** Adapter Box Dimensions (In.)
Holding Approximate
Temperature “B” No. Net Weight
Capacity Dimensions (°F) kW 240V 480V Model † Height Depth Length Dimension* Tubes (Lbs.)
1 1
175 15 3

Summary of the content on the page No. 2

GENERAL The Chromalox Unitary Electric Immersion Heater, Type RST welded into the tank adaptor box. Once the Unitary Immersion or RSTO, is a thoroughly engineered pretested package designed Heater is welded into your tank, the heating elements are remov- to give years of service vitrually maintenance free and shipped able without draining the tank. ready for installation in storage tank. They provide low watt The control panel contains a master circuit-breaker which is denisty heating over a lar

Summary of the content on the page No. 3

WIRING Typical Wiring Diagram for Type RST and RSTO Figure 2 OPERATION CAUTION: To avoid possible damage to the heater, 2. Set the indicating temperature control at the desired temperature do not energize until the tank is filled with fluid. and the over-temperature cutout 50°F above this temperature. Recommended fluid level is 2” above the heater 3. Close the control box door and turn the circuit breaker on. To tube or pipe. energize the heater circuits, turn the on-off selector switch to the “

Summary of the content on the page No. 4

MAINTENANCE Overtemperature Cutout Tank Adapter Box OPTIONAL EQUIPMENT Figure 3 Table 3 No. Tubes A B C D E F G H J K L M Gasket P/N 1 1 3 3 15 13 120 /2 18 /2 1 /4 515 – – 22 1 7 /4 /16 /16 132-122539-001 1 1 3 3 15 13 225 /2 23 /2 2 /4 618 1 5 24 2 7 /4 /16 /16 132-122539-002 1 1 1 3 15 13 330 /2 28 /2 2 /4 8 24 2 10 28 3 12 /4 /16 /16 132-122539-003 1 1 3 3 15 13 435 /2 33 /2 1 /4 10 30 3 15 32 4 12 /4 /16 /16 132-122539-004 1 1 3 3 15 13 540 /2 38 /2 2 /4 11 33 4 20 34 5 12 /4 /16 /16 132-12

Summary of the content on the page No. 5

OPTIONAL EQUIPMENT OPERATION “Off” Setting – de-energized the entire control circuit, thus de- energizing all heating circuits in the system. “Automatic” Setting – allows the Day-Night Clock Panel to cycle the control system according to the program clock dial trip- per settings. To Set Trippers – refer to picture for typical setup of a Seven Day Program. Two trippers must be used for each day; an “A” tripper for switching from “Night Setback” to “Day Operation” and a “B” tripper for switching f

Summary of the content on the page No. 6

TYPE RSTO RENEWAL PARTS IDENTIFICATION 240 Volts 480 Volts Model Element Circuit Breaker Contactor #1 Contactor #2 Fuse Element Circuit Breaker Contactor #1 Contactor #2 Fuse RSTO-21915 063-120517-001 104-071818-024 072-120812-012 072-120812-012 128-114696-012 063-120517-002 104-071818-020 072-120812-012 072-120812-012 128-114696-029 RSTO-21920 063-120517-003 104-071818-025 072-120812-008 072-120812-008 128-114696-012 063-120517-042 104-071818-022 072-120812-012 072-120812-012 128-114696-029 RST