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Quotes - Engineering - Sales
HTR Series High Inlet Temperature Air Dryers
| PRODUCT | TYPE | FLOW | RATING |
|---|---|---|---|
| Refrigerated Air Dryer | High Inlet Temperature | 25 to 125 SCFM | 232 psig / 180°F inlet |
Specifications
Configuration & Size
Sizes:
25, 50, 75, 100, 125 SCFM
Power:
115/1/60 on every size; 0.47 to 2.4 kW
Connections:
1/2 in MNPT (25), 1 in FNPT (50), 3/4 in FNPT (75-125)
Inlet filter:
GFN 0050 M1 to GFN 0175 M1, matched by size
Features
- Integrated water separator ahead of the chiller drops the condensate that forms as 180°F air starts to cool
- Refrigeration circuit sized for the heat load of hot inlet air, not just the moisture load
- Zero air loss drain fitted as standard, so the separator empties without venting the tank
- Digital display with dew point indication on the front panel
Direct expansion sized for 180°F inlet
Separator first, then the refrigeration section
The HTR Series is the direct-expansion dryer for hot air: five 115 V units from 25 to 125 SCFM rated for 180°F at the inlet, which is what a reciprocating compressor without an aftercooler delivers. An integrated water separator ahead of the chiller takes out the bulk condensate that hot air carries, a zero air loss drain empties it, and a digital display shows the dew point. Pressure rating is 0 to 232 psig and the ambient range is 34 to 120°F. Every size has a matching 1 micron inlet filter package from the GFN Series listed against it, and the compact cabinet stands next to the compressor on a service-bay or shop floor.
Plug in, pipe up, filter the inlet. Every size runs from a 115 V outlet, from 0.47 kW on the 25 SCFM unit to 2.4 kW on the 125; A 1 micron inlet filter is listed for each model: GFN 0050 for the 25 and 50, GFN 0085 for the 75, GFN 0105 for the 100, GFN 0175 for the 125; Compact footprint, 19 in tall on the smallest and 41 in on the two largest, to sit beside the compressor; R513A on the 25 SCFM unit and R404A on the four larger sizes.
The HTR next to the HRHT. Both take hot air off a piston compressor and both deliver a 50°F dew point; the HRHT is rated to 200°F, the HTR to 180°F; The HTR adds a 125 SCFM size for a 30 hp compressor and carries a 232 psig pressure rating; Both are 115 V; pick on the compressor discharge temperature first, then on the flow.
HTR Series Part Numbers
| Part Number | SCFM | Connection | Voltage | Power | Dimensions (in) | Weight (lb) |
|---|---|---|---|---|---|---|
| HTR 0025 | 25 | 1/2 in MNPT | 115/1/60 | 0.47 kW | 19.1 x 13.8 x 14.9 | 57 |
| HTR 0050 | 50 | 1 in FNPT | 115/1/60 | 1.0 kW | 31.0 x 22.6 x 18.1 | 108 |
| HTR 0075 | 75 | 3/4 in FNPT | 115/1/60 | 2.02 kW | 31.0 x 18.1 x 22.6 | 168 |
| HTR 0100 | 100 | 3/4 in FNPT | 115/1/60 | 1.93 kW | 41.0 x 18.1 x 22.6 | 231 |
| HTR 0125 | 125 | 3/4 in FNPT | 115/1/60 | 2.4 kW | 41.0 x 18.1 x 22.6 | 236 |
The number in the model is the rated flow in SCFM, dimensions are height x width x depth, and every size has a matched 1 micron GFN inlet filter.
HTR Series Applications
Cabinets and connections, 25 to 125 SCFM
From a 57 lb unit that hangs beside the tank to a 236 lb floor cabinet.
The HTR 0025 is 19.1 x 13.8 x 14.9 in and 57 lb with 1/2 in MNPT connections. The HTR 0050 is 31.0 x 22.6 x 18.1 in at 108 lb on 1 in FNPT, and the HTR 0075 is 31.0 x 18.1 x 22.6 in at 168 lb on 3/4 in FNPT. The HTR 0100 and HTR 0125 share a 41.0 x 18.1 x 22.6 in cabinet at 231 and 236 lb, also on 3/4 in FNPT. Full-load current runs from 5.2 A on the smallest to 17.5 to 18.7 A on the three largest, so those want a dedicated 20 A circuit rather than a shared outlet.
Install the dryer after the receiver with the matching GFN inlet filter ahead of it, and keep the line from the compressor short so the air arrives no hotter than it must. Leave the condenser face open and the warm discharge pointed away from the compressor intake, keep the room between 34 and 120°F, and pipe the zero-loss drain to a condensate separator. A three-valve bypass lets the dryer come out for service without shutting the shop down.
The outline above shows one cabinet; confirm the size, connection and inlet filter for your compressor with the quote.
Common FAQs
25 to 125 SCFM
- Sizes: 25, 50, 75, 100, 125 SCFM
- Power: 115/1/60 on every size; 0.47 to 2.4 kW
- Connections: 1/2 in MNPT (25), 1 in FNPT (50), 3/4 in FNPT (75-125)
- Inlet filter: GFN 0050 M1 to GFN 0175 M1, matched by size
- Inlet pressure: 0 to 232 psig
- Max inlet temperature: 180°F
- Ambient range: 34 to 120°F
- Pressure dew point: 50°F, ISO 8573-1 class 6
- Refrigerant: R513A (25 SCFM), R404A (50-125 SCFM)
