McQuay MicroTech 2000 User Manual

14 McQuay IM 660-3
Service Information
Table 10: Inputs and outputs for WSHP units
Connection Component description
J1-1 / TB#2-E Remote digital source
J1-2 / TB#2-L Remote digital signal
J1-3 / TB#2-U Spare relay normally closed
J1-4/TB#2-P Spare relay common
J1-5 / TB#2-C Spare relay normally open
J2-6 / TB#1-1 Room sensor LED
J2--7 / TB#1-2 Tenant override
J2-8 / TB#1-3 Room sensor input
J2-9 / TB#1-4 Room sensor common
J2-10 / TB#1-5 LonTalk connection
J2-11 /TB#1-6 LonTalk connection
J2-12 / TB#1-7 24 VAC common
J41 24 V ground
J4-2 24 VAC
J4-3 Fan relay output
J4-4 Fan relay common
J4-5 Compressor contactor output
J4-6 Compressor contactor common
J4-7 Reversing valve solenoid output
J4-8 Reversing valve solenoid common
J4-9 High pressure switch signal
J4-10 Low pressure switch source
J4-11 Low pressure switch signal
J4-12 Low temperature switch signal
J4-13 Low temperature switch source
J4-14 Condensate overflow sensor
J5-8 Leaving water temperature sensor input
J5-9 Leaving water temperature sensor common
J5-10 Discharge air temperature sensor input
J5-11 Discharge air temperature sensor common
J6-1-7 Auxiliary module connections
Table 11: Thermistor chart
°C 10 k ohm °F °C 10 k ohm °F
18 8.654 0 28 0.8777 82
17 8.173 1 29 0.8408 84
16 7.722 3 30 0.8056 86
15 7.298 5 31 0.7721 88
14 6.900 7 32 0.7402 90
13 6.526 9 33 0.7098 91
12 6.175 10 34 0.6808 93
11 5.845 12 35 0.6531 95
10 5.534 14 36 0.6267 97
9 5.242 16 37 0.6015 99
8 4.967 18 38 0.5774 100
7 4.708 19 39 0.5545 102
6 4.464 21 40 0.5326 104
5 4.234 23 41 0.5116 106
4 4.017 25 42 0.4916 108
3 3.812 27 43 0.4725 109
2 3.620 28 44 0.4543 111
1 3.438 30 45 0.4368 113
0 3.266 32 46 0.4201 115
1 3.104 34 47 0.4041 117
2 2.951 36 48 0.3888 118
3 2.806 37 49 0.3742 120
4 2.669 39 50 0.3602 122
5 2.540 41 51 0.3468 124
6 2.418 43 52 0.3340 126
7 2.302 45 53 0.3217 127
8 2.192 46 54 0.3099 129
9 2.089 48 55 0.2987 131
10 1.990 50 56 0.2878 133
11 1.897 52 57 0.2775 135
12 1.809 54 58 0.2675 136
13 1.726 55 59 0.2580 138
14 1.647 57 60 0.2489 140
15 1.571 59 61 0.2401 142
16 1.500 61 62 0.2317 144
17 1.432 63 63 0.2236 145
18 1.368 64 64 0.2158 147
19 1.307 66 65 0.2084 149
20 1.249 68 66 0.2012 151
21 1.194 70 67 0.1944 153
22 1.142 72 68 0.1878 154
23 1.092 73 69 0.1814 156
24 1.045 75 70 0.1753 158
25 1.000 77 71 0.1695 160
26 0.9572 79 72 0.1638 162
27 0.9165 81 73 0.1584 163

McQuay MicroTech 2000 Specifications

General

Brand	McQuay
Model	MicroTech 2000
Category	Controller
Language	English