Greenheck Maxitrol Series 44 - Manual

SERIES 44 INSTALLATION INSTRUCTIONS
and field service checklist
BULLETIN MI2047-06/04
REPLACED MI1079
System Components
Page 2 Introduction and Dimensions
Page 3 Specifications
Installation of Components
Typical Gas Trains
Page 4 & 5 Field Service Checklist
Page 6 Wiring Diagrams
Valve Adjustments
Page 7 Preliminary Circuit Analysis
Page 8 Temperature Calibration
Low Fire Start Time Adjustment
Sensitivity Adjustment
Table of Contents
Valve Mixing Tube and Sensor
Temp. Selector Temp. Sensor Selectrastat
Amplifiers:
A1044 (min. 40° to 80° F/ max. 80° to 140° F)
A1044C (min. 20° to 60° F/ max. 80° to 140° F)
A1044D (min. 20° to 60° F/ max. 35° to 75° F)
A1044E (min. 20° to 60° F/ max. 60° to 120° F)
A1044L1, A1044CL1, A1044DL1, A1044EL1, A1044FL1 -
above ranges with adjustable low fire start duration
NOTE: Amplifier and Discharge Temperature Sensor must
have same temperature range to be compatible.
Discharge Temperature Sensors: use with Mixing Tube
TS144 (min. 40° to 80° F/max. 80° to 140° F)
TS144C (min. 20° to 60° F/max. 80° to 140° F)
TS144D (min. 20° to 60° F/max. 35° to 75° F)
TS144E (min. 20° to 60° F/max. 60° to 120° F)
TS144F (min. 40° to 60° F/max. 60° to 95° F)
Mixing Tubes: used with Sensors
MT1-9 or MT2-9 (9" length)
MT1-12 or MT2-12 (12" length)
MT1-23 or MT2-23 (23" length)
MT1-28 or MT2-28 (28" length)
MT1-57 (57" length)
Valves:
M411 (3/8" & 1/2" pipe size)
M511 (1/2" & 3/4" pipe size)
M611 (3/4" & 1" pipe size)
MR212D (1", 1¼", 1½ pipe size)
MR212E (1½" & 2" pipe size)
MR212G (2½" & 3" pipe size)
MR212J (4" flanged)
MR212D-2, E-2, G-2 & J-2 (same pipe sizes as MR212D-J
except used for 2-speed blower or dual fuel operation)
NOTE: M (Modulator) valve requires an upstream pressure
regulator for low fire & high fire settings.
MR (Modulator/Regulator) valve requires no
upstream pressure regulator up to 5 psi inlet.
Selectrastat (Senses & Selects):
T244 (55° to 90° F)
T244A (40° to 80° F)
or optional pair to replace Selectrastat:
Space Temperature Selector:
TD244 (wall mount 55° to 90° F)
TD244A (wall mount 40° to 80° F)
TD244P (panel mount 55° to 90° F)
TD244AP (panel mount 40° to 80° F)
Space Temperature Sensor:
TS244 (55° to 90° F)
TS244A (40° to 80° F)
NOTE: Space Temperature Selector and Space
Temperature Sensor must have same
temperature range to be compatible.
A1044L1 Amplifier A1044 Amplifier