Page 1
MA 
MD 
MS 
Application 
Solenoid valves series M are used in general refrigeration 
and for original equipment to cut off/activate the refrigerant 
flow in a refrigerating plant. 
The solenoid valves can be installed in the liquid line, hot gas 
line and suction line of a refrigerating unit. 
Materials 
Body 
Seal material 
Connection tubes 
Coil 
brass, stainless steel 
PTFE 
solder: copper 
flare: brass 
copper, steel, Crastin 
Series M
SOLENOID VALVES
NORMALLY CLOSED
PRODUCT DATA 
Features
• MA: direct operated, angle construction  
• MD: direct operated, two way construction  
• MS: pilot operated, two way construction  
• Normally closed  
• Hermetic construction  
• Low pressure drop  
• High performance  
• Direct operated: no minimum pressure differential  
required to open the valve 
•  Pilot operated: minimum pressure differential of  
0.05 bar required to open the valve 
• Solder and flare connections  
• Coils for AC and DC  
• Refrigerants: all CFC, HCFC, HFC,  
      not for ammonia 
Specification 
Nominal capacity 
Maximum pressure PS 
Maximum test pressure PF 
Min. pressure differential 
Max. pressure differential 
Max. opening pressure  
differential MOPD 
Max. medium temperature 
Min. medium temperature 
Max. ambient temperature 
Min. ambient temperature 
Number of operating cycles 
Standard coil voltages 
Voltage tolerance 
see tables on page 2 
35 bar(a) 
50 bar(a) 
MA, MD: 0 bar 
MS: 0.05 bar 
MS: 2 bar 
AC-coil: MA, MD: 25 bar 
   MS: 30 bar 
DC-coil: MA, MD: 21bar 
   MS: 21 bar 
125 °C 
-45 °C 
80 °C 
-40 °C 
> 1,5 million 
AC: 230V, 110V, 24V 
DC: 230V, 24V 
further voltages on request 
AC: ±10% 
DC: +10%, -5% 
Copyright © 2009 Honeywell GmbH • Subject to change without notice    EN0H-1917GE23 R0709 
Page 2
SERIES M 
Nominal Capacity QN  (kW) 
Type 
MA 062   0.17   5.21   5.62   5.39 3.87 1.14 1.47 1.45 
MD   0.17   5.21 5.62 5.39 3.87 1.14 1.47 1.45 1.29 -   -   -   - 
MD   0.22   6.74 7.27 6.98 5.01 1.48 1.90 1.88 1.67 -   -   -   - 
MD   0.23   7.05 7.61 7.29 5.24 1.54 1.99 1.96 1.75 -   -   -   - 
MS   0.9 27.6 29.8 28.5 20.5 6.04 7.78 7.67 6.83 1.54 2.06 1.92 1.80 
MS   0.9 27.6 29.8 28.5 20.5 6.04 7.78 7.67 6,83 1.54 2.06 1.92 1.80 
MS   1.6 49.0 52.9 50.7 36.4 10.7 13.8 13.6 12.1 2.74 3.66 3.42 3.19 
MS   1.6 49.0 52.9 50.7 36.4 10.7 13.8 13.6 12.1 2.74 3.66 3.42 3.19 
MS   2   61.3 66.1 63.4 45.5 13.4 17.3 17.1 15.2 3.42 4.57 4.27 3.99 
MS   2   61.3 66.1 63.4 45.5 13.4 17.3 17.1 15.2 3.42 4.57 4.27 3.99 
MS   4 123 132 127 91.1 26.8 34.6 34.1 30.4 6.85 9.14 8.54 7.98 
The nominal capacity QN  is based on the following conditions 
Medium 
Liquid -10 
Hot gas   -10   25   1   25 °C   1 
Suction gas   -10   25   1   -   0.15 
Valve selection for other operating conditions see the following tables or consult the Honeywell software 
kv -value 
(m3/h) 
Evaporating 
temperature 
R134a R22 R407C
t0  (°C)   tc  (°C) 
Liquid   Hot gas   Suction gas 
R404A 
R507A
Direct operated 
Pilot operated 
Condensing 
temperature 
R134a R22 R407C
Subcooling 
Δ tc2u  (K)  
R404A 
R507A
temperature 
R134a R22 R407C
Hot gas 
tH  (°C) 
Pressure loss 
across valve 
Δ p (bar) 
R404A
R507A
EN0H-1917GE23 R0709   2   Honeywell GmbH • Subject to change without notice 
Page 3
SERIES M 
Valve size calculation for the liquid line
Refrigeration capacity Q0 , multiplied with correcting factor fTF,    
multiplied with correcting factor f 
nominal capacity Q
N.  
Δ PF results in the required  
QN  = Q0  x fTF  x fΔ PF  
QN    nominal capacity (according to table on page 2) 
Q
0 refrigeration  
TF   correcting factor for evaporating and liquid  
f
temperature 
f
Δ PF correcting factor for pressure loss across the valve  
Correcting factor fTF  for the change of capacity according to the operating temperatures 
tL * 
(°C) 
+10 ±0 -10 -20 -30 -40 +10 ±0 -10 -20 -30 -40 +10 ±0 -10 -20 -30 +10 ±0 -10 -20 -30 -40
0   -   - 0.80 0.83 0.85 0.88 -   - 0.82 0.83 0.85 0.88  - - 0.80 0.80 0.80 - - 0.73 0.76 0.79 0.83
+5   -   - 0.83 0.86 0.89 0.93 -   - 0.85 0.87 0.89 0.91  - 0.80 0.80 0.80 0.90 - - 0.77 0.8 0.84 0.88
+10 - 0.84 0.87 0.91 0.94 0.97 - 0.86 0.88 0.90 0.92 0.95  - 0.80 0.90 0.90 0.90 - 0.79 0.82 0.85 0.89 0.94
+15 - 0.88 0.91 0.94 0.98 1.02 - 0.90 0.92 0.94 0.96 0.99 0.90 0.90 0.90 0.90 1.00 - 0.84 0.87 0.91 0.95 1.00
+20 0.89 0.92 0.95 0.99 1.03 1.08 0.92 0.94 0.96 0.98 1.00 1.03 0.90 0.90 0.90 1.00 1.00 0.86 0.89 0.93 0.97 1.02 1.08
+25 0.94 0.96 1.00 1.05 1.09 1.14 0.96 0.98 1.00 1.03 1.05 1.09 0.90 1.00 1.00 1.00 1.10 0.92 0.96 1.05 1.05 1.11 1.18
+30 0.99 1.02 1.06 1.12 1.16 1.22 1.01 1.02 1.05 1.08 1.10 1.14 1.00 1.00 1.00 1.10 1.20 0.99 1.03 1.08 1.14 1.21 1.29
+35 1.04 1.08 1.12 1.18 1.24 1.30 1.05 1.07 1.10 1.13 1.16 1.20 1.10 1.10 1.10 1.20 1.20 1.08 1.13 1.19 1.26 1.34 1.44
+40 1.10 1.14 1.19 1.26 1.32 1.39 1.10 1.12 1.15 1.19 1.22 1.26 1.10 1.20 1.20 1.30 1.30 1.18 1.24 1.32 1.40 1.50 1.63
+45 1.18 1.22 1.28 1.35 1.42 1.50 1.17 1.19 1.22 1.26 1.29 1.34 1.20 1.30 1.30 1.40 1.40 1.32 1.39 1.48 1.59 1.72 1.88
+50 1.25 1.24 1.37 1.45 1.53 1.62 1.23 1.26 1.29 1.33 1.37 1.42 1.30 1.40 1.40 1.50 1.60 1.50 1.59 1.7 1.85 2.02 2.23
+55 1.35 1.41 1.48 1.58 1.67 1.78 1.30 1.33 1.37 1.42 1.46 1.52 1.40 1.50 1.60 1.70 1.80 1.74 1.87 2.02 2.22 2.47 2.79
+60 1.46 1.55 1.61 1.73 1.84 1.97 1.38 1.41 1.46 1.51 1.56 1.63  - - - - - - - - - - - 
* Temperature of liquid refrigerant at valve inlet. 
Correcting factor f
Pressure loss across valve Δ p (bar) 
Correcting factor fΔPF   
R134a   R22   R407C   R404A, R507A 
ΔPF for the change of capacity according to the chosen pressure loss across the valve   
Evaporating temperature t0  (°C) 
0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.55 0.60 0.65
2.83 2.00 1.63 1.41 1.26 1.15 1.07 1.00 0.94 0.89 0.85 0.82 0.78 0.76
0.70
Honeywell GmbH • Subject to change without notice   3   EN0H-1917GE23 R0709 
Page 4
SERIES M 
Valve capacity for the hot gas line 
Type 
MA 062 
MD 062 
MD 102 
MD 103 
MS 103 
MS 104 
MS 124 
MS 125 
MS 165 
MS 167 
MS 227 
* Capacities are based on evaporating temperature t0  = -10 °C, hot gas temperature tH  = +25 °C and 1 K subcooled refrigerant. 
Pressure 
loss 
across 
valve 
Δ p (bar)  
0.2   0.54 0.55 0.57 0.58 0.57 0.68 0.70 0.74 0.76 0.78 0.62 0.65 0.68 0.70 0.60 0.60 0.58 0.53 
0.5   0.83 0.86 0.89 0.90 0.89 1.06 1.10 1.15 1.19 1.22 0.98 1.02 1.08 1.11 0.93 0.93 0.90 0.83 
1.0   1.12 1.17 1.23 1.25 1.24 1.46 1.51 1.60 1.67 1.70 1.39 1.44 1.52 1.57 1.29 1.29 1.26 1.16 
1.5   1.31 1.38 1.47 1.50 1.50 1.74 1.81 1.93 2.01 2.06 1.71 1.77 1.87 1.93 1.54 1.55 1.52 1.41 
2.0   1.44 1.52 1.64 1.70 1.70 1.94 2.04 2.19 2.29 2.34 1.96 2.04 2.15 2.22 -   -   -   - 
0.2   0.69 0.72 0.75 0.75 0.73 0.77 0.91 0.96 0.99 1.00 0.81 0.83 0.88 0.91 0.77 0.77 0.74 0.68 
0.5   1.07 1.11 1.15 1.17 1.16 1.37 1.42 1.49 1.55 1.58 1.27 1.32 1.39 1.44 1.20 1.20 1.17 1.07 
1.0   1.44 1.51 1.60 1.62 1.61 1.89 1.96 2.08 2.15 2.20 1.80 1.87 1.97 2.04 1.66 1.67 1.63 1.50 
1.5   1.69 1.78 1.89 1.94 1.93 2.25 2.34 2.50 2.60 2.66 2.21 2.29 2.41 2.49 1.99 2.00 1.96 1.82 
2.0   1.86 1.97 2.12 2.20 2.20 2.52 2.64 2.83 2.97 3.03 2.55 2.64 2.79 2.88 -   -   -   - 
0.2   0.72 0.75 0.78 0.78 0.77 0.80 0.95 1.00 1.03 1.05 0.84 0.87 0.92 0.95 0.80 0.80 0.78 0.71 
0.5   1.12 1.16 1.21 1.22 1.21 1.43 1.48 1.56 1.62 1.65 1.33 1.38 1.46 1.50 1.26 1.26 1.22 1.12 
1.0   1.51 1.58 1.67 1.69 1.68 1.98 2.05 2.17 2.25 2.30 1.88 1.95 2.06 2.13 1.74 1.74 1.70 1.57 
1.5   1.77 1.86 1.98 2.03 2.02 2.35 2.45 2.61 2.72 2.78 2.31 2.39 2.52 2.61 2.08 2.09 2.05 1.90 
2.0   1.94 2.06 2.22 2.30 2.30 2.64 2.76 2.96 3.10 3.17 2.66 2.76 2.91 3.01 -   -   -   - 
0.2   2.83 2.93 3.04 3.06 3.02 4.20 4.33 4.55 4.70 4.79 3.60 3.71 3.90 4.03 3.09 3.09 3.00 2.74 
0.5   4.37 4.53 4.73 4.78 4.72 6.55 6.76 7.13 7.38 7.52 5.61 5.79 6.11 6.33 4.89 4.89 4.80 4.37 
1.0   5.93 6.19 6.52 6.63 6.57 9.02 9.35 9.91 10.3 10.5 7.73 8.01 8.49 8.83 6.77 6.86 6.69 6.09 
1.5   6.93 7.29 7.77 7.95 7.92 10.8 11.2 11.9 12.4 12.7 9.26 9.60 10.2 10.6 8.14 8.14 8.06 7.37 
2.0   7.60 8.07 8.66 9.00 9.00 12.1 12.6 13.5 14.2 14.5 10.4 10.8 11.6 12.2 -   -   -   - 
0.2   5.04 5.21 5.40 5.44 5.36 6.40 6.60 6.94 7.17 7.30 5.86 6.07 6.41 6.62 5.60 5.60 5.44 4.96 
0.5   7.77 8.07 8.40 8.50 8.39 9.97 10.3 10.9 11.2 11.5 9.27 9.6 10.1 10.5 8.76 8.76 8.52 7.80 
1.0   10.5 11.0 11.6 11.8 11.7 13.7 14.3 15.1 15.7 16.0 13.1 13.6 14.3 14.8 12.1 12.1 11.8 10.9 
1.5   12.3 13.0 13.8 14.1 14.1 16.4 17.1 18.2 19.0 19.4 16.1 16.6 17.6 18.1 14.5 14.6 14.3 13.2 
2.0   13.5 14.3 15.5 16.0 16.0 18.4 19.2 20.6 21.6 22.1 18.5 19.2 20.3 20.9 -   -   -   - 
0.2   6.29 6.51 6.76 6.80 6.70 8.00 8.25 8.68 8.96 9.12 7.33 7.59 8.01 8.28 7.00 7.00 6.80 6.20 
0.5   9.72 10.1 10.5 10.6 10.5 12.5 12.9 13.6 14.1 14.3 11.6 12.0 12.7 13.1 10.9 10.9 10.6 9.70 
1.0   13.2 13.7 14.5 14.7 14.6 17.2 17.8 18.9 19.6 20.0 16.4 17.0 17.9 18.5 15.1 15.2 14.8 13.6 
1.5   15.4 16.2 17.2 17.7 17.6 20.5 21.3 22.7 23.7 24.2 20.1 20.8 22.0 22.7 18.1 18.2 17.9 16.5 
2.0   16.9 17.9 19.3 20.0 20.0 23.0 24.0 25.7 27.0 27.6 23.2 24.0 25.3 26.2 -   -   -   - 
0.2   12.6 13.0 13.5 13.6 13.4 16.0 16.5 17.4 17.9 18.2 14.7 15.2 16.0 16.6 14.0 14.0 13.6 12.4 
0.5   19.4 20.1 21.0 21.2 21.0 24.9 25.8 27.1 28.1 28.6 23.2 24.0 25.3 26.2 21.9 21.9 21.3 19.5 
1.0   26.3 27.5 29.0 29.5 29.2 34.4 35.6 37.8 39.2 40.0 32.8 33.9 35.8 37.0 30.3 30.4 29.7 27.3 
1.5   30.8 32.4 34.5 35.3 35.2 41.0 42.6 45.4 47.4 48.4 40.1 41.6 43.9 45.3 36.3 36.5 35.8 33.1 
2.0   33.8 35.9 38.7 39.9 40.0 45.9 48.0 51.5 53.9 55.2 46.3 48.0 50.7 52.4 -   -   -   - 
+25 +30 +40 +50 +60 +25 +30 +40 +50 +60 +25 +30 +40 +50 +25 +30 +40 +50
R134a   R22   R407C   R404A, R507A 
Condensing temperature tc (°C) 
Direct operated 
Pilot operated 
Capacity (kW)* 
If the hot gas temperature is changed by ±10 °C the valve capacity changes (inversely proportional) by ±2,5 %. 
With other evaporating temperatures t
t0  (°C)   -50   -40   -30   -20   -10   ±0   +10 
R134a - 
R22   0.88 0.91 0.95 0.97 1.00 1.03 1.05 
R407C 0.83 0.88 0.92 0.95 1.00 1.01 1.06 
R404A, 
R507A 
EN0H-1917GE23 R0709   4   Honeywell GmbH • Subject to change without notice 
0.75 0.81 0.88 0.13 1.00 1.05 - 
0 the capacities above should be multiplied by the following correcting factors:  
Page 5
SERIES M 
Valve size calculation for the suction line
Refrigeration capacity Q0 , multiplied with correcting factor fTS,    
multiplied with correcting factor f 
nominal capacity Q
N.  
Δ PS results in the required  
QN  = Q0  x fTS  x fΔ PS  
QN    nominal capacity (according to table on page 2) 
Q
0 refrigeration  
TS   correcting factor for evaporating and liquid  
f
temperature 
fΔPS  correcting factor for pressure loss across the valve 
Correcting factor fTS  for the change of capacity according to the operating temperatures 
Evaporating 
temperature 
t0  (°C) 
+60   +50   +40   +30   +20 
+10 0.98 
±0 1.19 
-10 1.48 
-20 1.88 
-30 2.42 
-40 3.20 
+10   - 1.14 0.82 0.71 0.63 
±0   - 1.24 1.01 0.87 0.77 
-10   - 1.57 1.26 1.07 0.94 
-20   - 2.02 1.60 1.35 1.17 
-30   - 2.67 2.07 1.72 1.49 
-40   - 3.62 2.74 2.25 1.93 
Correcting factor fΔPS  for the change of capacity according to the chosen pressure loss across the valve 
Pressure loss across valve Δ p (bar) 
Correcting factor fΔPS   
0.05   0.075   0.10   0.15   0.20   0.30   0.40   0.50   0.60 
1.73 1.41 1.22 1.00 0.87 0.71 0.61 0.55 0.50 
Condensating temperature tc  (°C) 
For refrigerant R134a, R22, R407C 
For refrigerant R404A, R507A 
Honeywell GmbH • Subject to change without notice   5   EN0H-1917GE23 R0709 
Page 6
SERIES M 
Type Code / Order Information 
1. Solenoid Valve 
   M S 16 5 S 
S   
Type: 
A = direct operated, angle 
D = direct operated 
S = pilot operated 
V   
Connection size in 1/8”                                  
()   = flare connection 
MMS = solder, metric 
S   = solder, inch 
Voltage 
() = without coil 
2. Solenoid Coil 
Type of coil, capacity   For Solenoid Valve   Voltage, frequency   Voltage tolerance 
MC 062, 8 W   MA 062(S)(MMS) 
MC 102-227, 13 W   MD 102(S)(MMS) 
MC 102-227, 20 W   MD 102(S)(MMS) 
International protection rating IP65, coil incl. e.l.c.b.-protected plug to DIN 43650 with cable gland; conduit thread PG11. 
230 V, 50/60 Hz 
MD 062(S)(MMS) 
MD 103(S)(MMS) 
MS 103-227(S)(MMS) 
MD 103(S)(MMS) 
MS 103-227(S)(MMS) 
110 V, 50/60 Hz 
24 V, 50/60 Hz 
230 V, 50/60 Hz 
110 V, 50/60 Hz 
24 V, 50/60 Hz 
24 V DC 
230 V DC 
±10 % 
±10 % 
+10 % 
-5 % 
EN0H-1917GE23 R0709   6   Honeywell GmbH • Subject to change without notice 
Page 7
Dimensions and Weights 
SERIES M 
For tube 
(E) 
MA 062MMS   6 mm ODF   6 mm   88   88   142   47   0.15   0.30 
MA 062S   1/4" ODF   1/4"   88   88   142   47   0.15   0.30 
MD 062   7/16" UNF   6 mm, 1/4"   65   17   57   47   0.19   0.33 
MD 062MMS   6 mm ODF   6 mm   112   17   57   47   0.17   0.31 
MD 062S   1/4" ODF   1/4"   112   17   57   47   0.17   0.31 
MD 102   7/16" UNF   6 mm, 1/4"   68   19   64   54   0.19   0.33 
MD 102MMS   6 mm ODF   6 mm   118   19   64   54   0.17   0.31 
MD 102S   1/4" ODF   1/4"   118   19   64   54   0.17   0.31 
MD 103   5/8" UNF   10 mm, 3/8"   71   19   64   54   0.28   0.52 
MD 103MMS   10 mm ODF   10 mm   118   19   64   54   0.25   0.49 
MD 103S   3/8" ODF   3/8"   118   19   64   54   0.25   0.49 
MS 103   5/8" UNF   10 mm, 3/8" 84 12 79 54 0.51   0.75 
MS 103MMS   10 mm ODF   10 mm   159   12   79   54   0.55   0.79 
MS 103S   3/8" ODF   3/8"   159   12   79   54   0.55   0.79 
MS 104 MMS   12 mm ODF   12 mm   159   12   79   54   0.56   - 
MS 104S   1/2" ODF   1/2"   159   12   79   54   0.56   - 
MS 124   3/4" UNF   12 mm, 1/2" 91 12 79 54 0.54   0.77 
MS 124MMS   12 mm ODF   12 mm   159   12   79   54   0.56   0.79 
MS 124S   1/2" ODF   1/2"   159   12   79   54   0.56   0.79 
MS 125S 
MS 165   7/8" UNF   16 mm, 5/8" 97 12 79 54 0.57   0.80 
MS 165S 
MS 167S 
MS 227S 
16 mm, 
5/8" ODF 
16 mm, 
5/8" ODF 
22 mm, 
7/8" ODF 
22 mm, 
7/8" ODF 
diameter 
Direct operated 
Pilot operated 
16 mm, 5/8"   159   12   79   54   0.56   - 
16 mm, 5/8"   159   12   79   54   0.59   0.82 
22 mm, 7/8"   173   12   79   54   0.59   - 
22 mm, 7/8"   262   22   88   54   1.45   1.65 
Dimensions (mm)   Weight (kg)   Connections 
A   B   C   D 
without coil 
230 V AC 
with coil 
230 V AC 
MD MS 
Honeywell GmbH • Subject to change without notice   7   EN0H-1917GE23 R0709 
Page 8
SERIES M 
Installation 
•  Position of plunger tube should be from upright to 
horizontal position. 
• Arrow on valve body must correspond with flow direction.  
• Keep 45 mm distance clear above the valve for  
assembly/disassembly of coil. 
• Fit solenoid valve so that it is drip proof.  
• Solder valves:  
 Remove cap nut, coil and gaskets before soldering  
 Max. temperature of valve body: 125 °C.  
   When soldering, always point flame away from valve 
body 
 When assembling after soldering, fit the coil’s top and  
bottom seal rings. 
•  Flare valves:  
   When tightening flare nuts grip at wrench flats on the 
valve body provided for this purposes 
 Do not use coil and plunger tube as lever (thin-walled  
plunger tube). 
 When installing direct operated valves with 20 W DC  
coil, the flare nut must be tightened in that way that one 
flat of the nut is in parallel with the lower surface of the 
coil. 
• Voltage of coil and network must correspond.  
• The flat spade terminals is the earth connection. The  
protective conductor must also be connected at the plant. 
•  Do not energize the coil before assembling on the valve 
body. 
•  All gaskets must be fitted carefully in order to achieve 
protection to IP65. 
• Tighten fixing screw of connector.  
• Constructive modifications at the valve are not allowed.  
Automation and Control Solutions 
Honeywell GmbH 
Hardhofweg 
74821 Mosbach/Germany 
Phone: +49 (0) 
Fax:    +49 (0)
 62  61  /  81-475   
 62  61  /  81-461  
E-Mail: cooling.mosbach@honeywell.com 
www.honeywell-cooling.com 
KAT-MV-002    
EN0H-1917GE23 R0709   8   Honeywell GmbH • Subject to change without notice 
Manufactured for and on behalf of the 
Environment and Combustion Controls  
Division of Honeywell Technologies Sàrl,  
1180 Rolle, Z. A. La Pièce 16, Switzerland  
by its authorized representative Honeywell GmbH