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Hazloc Heaters srh2 Owner's Manual

Steam rig heater
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SRH2
SRH2
SRH2
Steam Rig Heater
CRN: 0H14931.2C
Owner's Manual, Version: SRH2-OM-B
This manual covers installation, maintenance,
repair, and replacement parts.
Industrial Grade
Heat-Exchanger Unit Heaters
WARNING!
Please adhere to all instructions published in this manual.
Failure to do so may be dangerous and may void your warranty.
The SRH2 heat-exchanger core is covered by the Safety Codes Act and therefore is not field repairable.
Contact factory for a replacement core if fluid leakage occurs.
www.HazlocHeaters.com
Printed in Canada
Part No. SRH2-OM-B

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Summary of Contents for Hazloc Heaters srh2

  • Page 1 Please adhere to all instructions published in this manual. Failure to do so may be dangerous and may void your warranty. The SRH2 heat-exchanger core is covered by the Safety Codes Act and therefore is not field repairable. Contact factory for a replacement core if fluid leakage occurs.
  • Page 2 Ensure explosion-proof motors meet the requirements of your hazardous area rating.  † Standard ex-proof motor suitable for Class I & II, Div. 1 & 2, Groups C, D, F & G; T3B. SRH2 Physical Dimensions (12 inch to 30 inch models) Heater Size Inches...
  • Page 3 SRH2 Physical Dimensions (36 inch model) SRH2-36 Front & Rear Views...
  • Page 4 56 frame. SRH2-36 is a 56C frame motor and a maintenance-free speed reducer. Mounting Holes 5/8 in. – 11 UNC – 4 holes at top of heater (2 holes, SRH2-12). 2 in. NPT female inlet and outlet (configuration of fluid connection Fluid Connections locations can be reversed by rotating the core).

  • Page 5: Installation

    — WARNING! — Read and follow the instructions in this manual. Failure to do so may result in severe or fatal injury. 1. Heater is to be connected and serviced only by qualified personnel experienced in electrical, and piping work. 2.
  • Page 6  In horizontal pipe runs, use eccentric reducers only. Gate Valve Note: Heater inlet and outlet coupling connection locations can be Hazloc Heaters Steam Main reversed in the field by rotating the core. Petcock (install if trap does not have air vent)

  • Page 7: Piping Practices

    — Piping Practices — 1. Steam unit heaters condense steam rapidly, especially during warm-up periods. The return piping must be planned to keep the heat-exchanger’s core free of condensate during periods of maximum heat output, and steam piping must be able to carry a full supply of steam to the unit heater to take the place of condensed steam.
  • Page 8 — Warning — Wiring should only be connected by qualified personnel experienced in electrical work. — Electrical Wiring of Motor and Remote Mount Thermostats — Motor wiring diagram is located on the motor. On all three-phase heater motors, it is neces- sary to verify that the fan rotation is correct (counter clockwise when facing the rear of the heater).
  • Page 9 #10 - 24 UNC bottom panel & louver blade screws 1. For replacement of fan or fan guard remove four bolts holding motor to the motor mount. For SRH2-36 also remove speed reducer bolts. If replacing motor only on SRH2-36, only remove motor mounting bolts and C-face flange bolts.
  • Page 10 *** Please have heater model & serial number available before calling *** Note: Inlet and outlet coupling connection locations can be reversed in the field by rotating the core. SRH2 (12 inch to 30 inch models) SRH2-12 SRH2-16 SRH2-20 SRH2-24...
  • Page 11 *** Please have heater model & serial number available before calling *** Note: Inlet and outlet coupling connection locations can be reversed in the field by rotating the core. SRH2 (36 inch model) SRH2-36 Item Description Part Number Core assembly (1-pass)

  • Page 12: Maintenance Program

    4. Check motor shaft bearing play. Replace motor if play is excessive or if motor does not run quietly and smoothly. Motor bearings are permanently lubricated. 5. On SRH2-36 models, speed reducer is maintenance free. Check for excessive noise and vibration. 6. Check fan. Replace immediately if cracked or damaged.
  • Page 13 HEATER MAINTENANCE RECORD Heater Model: _________________________ Serial No.: ______________________________ Date of Performed Maintenance Performed Maintenance...
  • Page 14 NOTES...
  • Page 15 NOTES...
  • Page 16 Limited 18-Month Warranty Hazloc Heaters warrants all SRH2 series of heat-exchanger unit heaters against defects in materials and workmanship under normal conditions of use for a period of eighteen (18) months from date of purchase based on the following terms: 1.