Introduction and dimensions – Greenheck Maxitrol Series 44 User Manual
Page 2

2
Introduction and Dimensions
A discharge air temperature sensor (and mixing tube) is a
means of limiting the minimum and maximum discharge air
temperature. The amplifier supplies output voltage to the
modulating valve. A wall mounted Selectrastat senses
space temperature and has an integral selector with either
a 55° to 90° F or 40° to 80° F range. Optionally, a remote
Temperature Sensor paired with a separate Temperature
Selector can be substituted for the Selectrastat.
Selectra SERIES 44 electronic gas flame modulation
systems are designed primarily for space heating, as
components of direct fired equipment. They may be
field installed on existing equipment or specified for new
equipment installation. All fuel gases are compatible.
The systems utilize Modulator or Modulator-Regulator
valves to control gas pressure. Amplifiers are available
with adjustable low-fire start duration.
(SEE PAGE 1)
MIXING TUBE (TS144 attaches internally)
(Space Temperature Sensor dimensions same except without front dial)
(Space Temperature Selector dimensions same)
A1044 AMPLIFIER
A1044L1 AMPLIFIER
SELECTRASTAT, TEMP. SELECTOR, SPACE TEMP. SENSOR
- VCD-40 Extension Pin Kit 316SS (475290) (2 pages)
- 331-2856, 332-2856 - Siemens 6 Actuator (454206) (2 pages)
- 331-2976, 332-2976 - Siemens 4 Actuator (454202) (2 pages)
- 331-4551, 332-4551 - Siemens 3 Actuator (454201) (2 pages)
- Adjustable Pressure Controller (468292) (3 pages)
- 7800 Series Relay Modules (12 pages)
- Standard Control - MSSC (476372) (4 pages)
- NFB Series Actuators External Mount (464236 IOM) (2 pages)
- GND Series External Mount (473723) (4 pages)
- Amplifier for 7800 Series Relay Module (8 pages)
- APEX Curbs (462831) (4 pages)
- AMD-xx-TD Transmitter (35 pages)
- Blade Seal Repalcement (HCDR Series) (1 page)
- VCD (463384) (12 pages)
- BAPI Zone Pressure Touch (ZPT) Sensor (6 pages)
- VCD (463384) (10 pages)
- Blade Seal Replacement (HCD Series) (2 pages)
- BR Series - Counterweight Adjustment (469420) (4 pages)
- Leakage Rated Ceiling Radiation Dampers (475063 IOM). (32 pages)
- Canopy Hoods (452413 IOM) (36 pages)
- Clean-Out Port Kit (472428) (1 page)
- Centrifugal (CSW, BIDW, AFDW), Industrial (IPA, IPO, IPW) and Filtered Supply (LSF) (463687) (12 pages)
- Close Indicator Switch for Fire Dampers (474050) (1 page)
- Concrete Floor with Steel Deck Supplement (463562) (1 page)
- CRD-3XX and CRD-7XX Series for SP fans (452832) (2 pages)
- VCD (463384) (8 pages)
- VCD (463384) (4 pages)
- Single Side Retaining Angle (52 pages)
- DG / DGX with Pilot Ignition (463555 IOM) (Pre-2008) (48 pages)
- DG / DGX with Direct Spark (470652) (40 pages)
- Digital Temperature Interlock (474750 IOM) (Pre November 2012) (8 pages)
- DGK (468695) (20 pages)
- DG / DGX with Pilot Ignition (463555 IOM) (Pre-2008) (52 pages)
- Double Gland Axle Seal Replacement (1 page)
- Dock Arm Kit (475367) (4 pages)
- Duct Heaters Series IDHB and IDHC (478052) (8 pages)
- EHH-601D, Channel Installation (474643) (10 pages)
- EHH-601D, Channel Installation with VCD-40 Damper (474644) (8 pages)
- EHH-601D, Flange/Sleeve Installation (474641) (8 pages)
- GM Series (468391) (4 pages)
- EHH-601D, Flange/Sleeve Installation with VCD-40 Damper (474642) (8 pages)
- El-O-Matic E and P Series (12 pages)
- Energy Recovery Filter Hood System (8 pages)
- ERV-582/120 Curbs (460988) (4 pages)
- ESD-635D, Chanel Installation (474639) (10 pages)